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Literatura académica sobre el tema "Voltage Source Inverter (VSI)"

Autor: Grafiati

Publicado: 4 de junio de 2021

Última modificación: 6 de septiembre de 2023

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Artículos de revistas sobre el tema "Voltage Source Inverter (VSI)"

Beriber, D., A. Talha y M. Boucherit. "Stabilization of multi DC bus link voltages of multilevel NPC VSI. Application to double stator induction motors". Archives of Control Sciences 22, n.º 1 (1 de enero de 2012): 107–20. http://dx.doi.org/10.2478/v10170-011-0015-1.

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Stabilization of multi DC bus link voltages of multilevel NPC VSI. Application to double stator induction motors Voltage source multilevel inverters have become very attractive for power industries in power electronics applications during last years. The main purposes of studying multilevel inverters are the generation of output voltage signals with low harmonic distortion and reduction of switching frequency. An important issue of the multilevel inverter is the capacitor voltage-balancing problem. The unbalance of different DC voltage sources of multilevel neutral point clamped (NPC) voltage source inverter (VSI) constitutes the major limitation for the use of this new power converter. In this paper, we present study on the stability problem of the input DC voltages of the three-level Neutral Point Clamping (NPC) voltage source inverter (VSI). This inverter is useful for application in high voltage and high power area. In the first part, we remind the model of double stator induction motors (DSIM). Then, we develop control models of this inverter using the connection functions of the semi-conductors. We propose a Pulse Width Modulation (PWM) strategy to control this converter. The inverter is fed by constant input DC voltages. In the last part, we study the stability problem of the input DC voltages of the inverter. A cascade constituted by two three-level PWM rectifiers - two three-level NPC VSI - DSIM is discussed. The results obtained show that the input DC voltages of the inverters are not stable. To solve this problem, we propose to use a half clamping bridge. This solution is very promising in order to stabilize the input DC voltages of this converters.

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Chinmay V., Deshpande, Deshpande Chaitanya V. y Deokar Sanjay A. "Performance Evaluation of Dynamic Voltage Restorer Based on Transformer-based Z Source Inverter". International Journal of Power Electronics and Drive Systems (IJPEDS) 8, n.º 3 (1 de septiembre de 2017): 1101. http://dx.doi.org/10.11591/ijpeds.v8.i3.pp1101-1108.

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In this paper, latest technology is introduced in substitution to conventional voltage and current type inverter with Transformer based impedance (Z) source inverter in voltage sag assessment and mitigation and compared with voltage source inverter based dynamic voltage restorer. Transformer based impedance source inverters (Trans-Z source inverters) are newly proposed inverters that can be used to overcome downside of voltage source inverter, current source inverter and impedance source (Z-source) inverter. T-Z source inverter consists of transformer with high frequency and low leakage inductance along with low reactive component compared with conventional Z source inverter. In case of T-Z source inverter, voltage stress throughout Z-source capacitor is reduced along with inrush current limitation at startup. This paper presents modeling of T-Z source inverter based dynamic voltage restorer using MATLAB/SIMULINK software along with its THD analysis which is compared with VSI based dynamic voltage restorer. Here abc to dq0 control algorithm is employed. The control technique which is employed for simulation shows excellent results for voltage sag and swell compensation.

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Rymarski, Zbigniew, Krzysztof Bernacki y Łukasz Dyga. "Controlled Energy Flow in Z-Source Inverters". Energies 14, n.º 21 (3 de noviembre de 2021): 7272. http://dx.doi.org/10.3390/en14217272.

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This paper proposes a method to reduce the output voltage distortions in voltage source inverters (VSI) working with impedance networks. The three main reasons for the voltage distortions include a discontinuous current in the coils of the impedance network, the double output frequency harmonics in the VSI’s voltage output caused by insufficient capacitance in the impedance network, and voltage drops on the bridge switches during the shoot-through time. The first of these distortions can be reduced by increasing the current of the impedance network when the output VSI current is low. This method requires storing energy in the battery connected to the DC link of the VSI during the “non-shoot through” time. Furthermore, this solution can also be used when the Z-source inverter works with a photovoltaic cell to help it attain a maximum power point. The Z-source inverter is essentially a voltage source inverter with the Z-source in the input. In this paper, the theory behind basic impedance networks of Z-source and quasi-Z-source (qZ-source) is investigated where simulations of the presented solutions and experimental verification of the results are also presented.

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Bouchafaa, Farid, Mohamed Seghir Boucherit y El Madjid Berkouk. "Feedback Loop Control Strategies of the Multi Dc Bus Link Voltages Using Adaptive Fuzzy Logic Control". Journal of Electrical Engineering 64, n.º 3 (1 de mayo de 2013): 143–51. http://dx.doi.org/10.2478/jee-2013-0021.

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Voltage source multilevel inverters have become very attractive for power industries in power electronics applications during last years. The main purposes that have led to the development of the studies about multilevel inverters are the generation of output voltage signals with low harmonic distortion; the reduction of switching frequency. A serious constraint in a multilevel inverter is the capacitor voltage-balancing problem. The unbalance of different DC voltage sources of five-level neutral point clamping (NPC) voltage source inverter (VSI) constitutes the major limitation for the use of this new power converter. In order to stabilize these DC voltages, we propose in this paper to study the cascade constituted by three phases five-level PWM rectifier, a clamping bridge and five-level NPC (VSI). In the first part, we present a topology of five-level NPC VSI, and then they propose a model of this converter and an optimal PWM strategy to control it using four bipolar carriers. Then in the second part, we study a five-level PWM rectifier, which is controlled by a multiband hysteresis strategy. In the last part of this paper, the authors study shows particularly the problem of the stability of the multi DC voltages of the inverter and its consequence on the performances of the induction motors (IM). Then, we propose a solution to the problem by employed closed loop regulation using PI regulator type fuzzy logic controller (FLC). The results obtained with this solution confirm the good performances of the proposed solution, and promise to use the inverter in high voltage and great power applications as electrical traction.

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Bharat, Manish, ASR Murty y Ritesh Dash. "Design and analysis of trans Z-source inverter for electric vehicle applications using neural network-clustering". Bulletin of Electrical Engineering and Informatics 12, n.º 3 (1 de junio de 2023): 1783–96. http://dx.doi.org/10.11591/eei.v12i3.4818.

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The presented paper analyzes the detailed design of a trans Z-source inverter (ZSI) with an input from solar photovoltaic (SPV) system. Increase in SPV uses requires highly efficient SPV enabled inverters under varying weather parameters are in high demand in modern smart grid applications. The SPV-trans ZSI has high conversion efficiency because of the single-stage voltage boost conversion capability. In contradiction, the conventional voltage source inverter (VSI) requires an additional step-up transformer to boost the output voltage of inverter. This reduces the efficiency by increasing the volume of set up and also increase the cost of the system. In the proposed SPV system it provides a better output against VSI. The increase in inverter output voltage is because of shoot through time period present in ZSI. It also reduces the voltage stress and harmonics content as compared to VSI. The proposed model has been validated through MATLAB simulation.

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Khan, Hamid Saeed y Attaullah Y. Memon. "Robust Output Feedback Control of the Voltage Source Inverter in an AC Microgrid". Energies 15, n.º 15 (1 de agosto de 2022): 5586. http://dx.doi.org/10.3390/en15155586.

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This paper presents the mathematical model and control of the voltage source inverter (VSI) connected to an alternating current (AC) microgrid. The VSI used in this work was a six-switch three-phase PWM inverter, whose output voltages were controlled in a synchronous (dq) reference frame via a sliding mode control strategy. The control strategy required only output voltages; other states of the system were estimated by using a high-gain observer. The power-sharing among multiple inverters was achieved by solving power flow equations of the electrical network. The stability analysis showed that the error was ultimately bound in the case of the real PWM inverter and/or with a nonlinear load in the electrical network. The microgrid was simulated using the SimPowerSystems Toolbox from MATLAB/Simulink. The simulation results show the effectiveness of the proposed control scheme. The output voltage regulation of the inverter and power-sharing was achieved with the ultimately bounded error for the linear load. Later, the nonlinear load was also included in the electrical network and the error was shown to remain ultimately bounded. The output voltage regulation and power-sharing were achieved with the nonlinear load in the system.

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Kumar, A. Suresh, R. K. Pongiannan, C. Bharatiraja, Adedayo Yusuff y N. Yadaiah. "Non isolated coupled converter tied voltage source inverter drive". International Journal of Power Electronics and Drive Systems (IJPEDS) 10, n.º 2 (1 de junio de 2019): 645. http://dx.doi.org/10.11591/ijpeds.v10.i2.pp645-652.

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<span>The voltage source inverters (VSI) are ever required section in the AC motor drive and power system interface. The electrical drive segment, the VSI based drives are unavoidable and they are closely operated with induction motor, permanent magnate synchronous motor and BLDC motor. These drives are normally needed high torque-power characters. Hence, the input DC-link side voltage is increased with help of increasing input AC in the rectifier input. However, this causes the power quality disturbance in the AC main and DC-link. In order to go for a increasing the AC voltage, the rectifier out is connected with DC to DC boost converter and they are increasing the DC voltage to meet out the drive DC-link voltage demand. With this aim, the paper proposes the idea to connect high step non-isolated high gain coupled DC to DC converter with three phase VSI for drives applications. The proposed converter has an ability to increase the voltage five times and the counter winding arrangement ratio of the converter is help for the further increase of gain. Inn this interface the front end DC to DC converters inductors are charged by making the short circuit with inverter switching. The converter voltage gain is controlled by shoot through of the VSI switch (converter gain directly proportional to inverter shoot through). The proposed converter has a higher degree of freedom in their values of winding and output voltage. Hence, the DC-link voltage of the inverter can be extended in any level. The operation principle and modes of the proposed DC to DC Source tied VSI is analyzed and simulated using MATLAB-Simulink software simulation. The laboratory based small scale power circuit is developed with help of control algorithm. The entire implementation is done through PIC microcontroller platform. The deign Investigation, system simulation and experimentation confirming the proposed DC to DC converter tied VSI drive system.</span>

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Dai, NingYi, Chi-Seng Lam y WenChen Zhang. "Multifunctional Voltage Source Inverter for Renewable Energy Integration and Power Quality Conditioning". Scientific World Journal 2014 (2014): 1–10. http://dx.doi.org/10.1155/2014/421628.

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In order to utilize the energy from the renewable energy sources, power conversion system is necessary, in which the voltage source inverter (VSI) is usually the last stage for injecting power to the grid. It is an economical solution to add the function of power quality conditioning to the grid-connected VSI in the low-voltage distribution system. Two multifunctional VSIs are studied in this paper, that is, inductive-coupling VSI and capacitive-coupling VSI, which are named after the fundamental frequency impedance of their coupling branch. The operation voltages of the two VSIs are compared when they are used for renewable energy integration and power quality conditioning simultaneously. The operation voltage of the capacitive-coupling VSI can be set much lower than that of the inductive-coupling VSI when reactive power is for compensating inductive loads. Since a large portion of the loads in the distribution system are inductive, the capacitive-coupling VSI is further studied. The design and control method of the multifunctional capacitive-coupling VSI are proposed in this paper. Simulation and experimental results are provided to show its validity.

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Tripathi, Prabhat R., V. Laxmi, Ritesh K. Keshri, Bhargav Appasani y Taha Selim Ustun. "A Novel Fundamental Frequency Switching Operation for Conventional VSI to Enable Single-Stage High-Gain Boost Inversion with ANN Tuned QWS Controller". Electronics 10, n.º 20 (14 de octubre de 2021): 2499. http://dx.doi.org/10.3390/electronics10202499.

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Single-stage high-gain inverters have recently gained much research focus as interfaces for inherent low voltage DC sources such as fuel cells, storage batteries, and solar panels. Many impedance-assisted inverters with different input stage configurations have been presented. To decrease passive component sizes, these inverters operate at high-frequency switching. The high-frequency switching optimizes the passive component sizes but introduces many challenges in the form of high-frequency inductor design, control complexity, high-frequency gate driver requirements, high semiconductor losses, and electromagnetic interferences. This article proposes a novel fundamental frequency switching operation for the conventional voltage source inverters (VSI) to operate as a single-stage high-gain inverter. As the novel operational strategy changes the behavior of conventional VSI from buck inverter to a boost inverter, it is hereafter termed as a novel inverter. By virtue of the operation strategy, switches withstand peak inverse voltage (PIV) equal to DC link voltage, unlike other impedance assisted boost inverters where PIV across switches is the amplified DC voltage. The proposed inverter can invert low-level DC voltage to high voltage AC with low total harmonic distortion (THD) in a single stage without the help of any external filter. A novel quarter-wave symmetric phase-shift controller is proposed for variable voltage and frequency control of proposed inverters tuned by a back-propagation thin-plate-spline neural network (BPTPSNN). Mathematical analysis with experimental validation is presented. Experimentation is carried out on a prototype of 2 kW for single-phase resistive load, induction motor, and non-linear loads.

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Tesis sobre el tema "Voltage Source Inverter (VSI)"

Gannett, Robert Ashley. "Control Strategies for High Power Four-Leg Voltage Source Inverters". Thesis, Virginia Tech, 2001. http://hdl.handle.net/10919/34251.

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In recent decades there has been a rapidly growing demand for high quality, uninterrupted power. In light of this fact, this study has addressed some of the causes of poor power quality and control strategies to ensure a high performance level in inverter-fed power systems. In particular, specific loading conditions present interesting challenges to inverter-fed, high power systems. No-load, unbalanced loading, and non-linear loading each have unique characteristics that negatively influence the performance of the Voltage Source Inverter (VSI). Ideal, infinitely stiff power systems are uninfluenced by loading conditions; however, realistic systems, with finite output impedances, encounter stability issues, unbalanced phase voltage, and harmonic distortion. Each of the loading conditions is presented in detail with a proposed control strategy in order to ensure superior inverter performance. Simulation results are presented for a 90 kVA, 400 Hz VSI under challenging loading conditions to demonstrate the merits of the proposed control strategies. Unloaded or lightly loaded conditions can cause instabilities in inverter-fed power systems, because of the lightly damped characteristic of the output filter. An inner current loop is demonstrated to damp the filter poles at light load and therefore enable an increase in the control bandwidth by an order of magnitude. Unbalanced loading causes unequal phase currents, and consequently negative sequence and zero sequence (in four-wire systems) distortion. A proposed control strategy based on synchronous and stationary frame controllers is shown to reduce the phase voltage unbalance from 4.2% to 0.23% for a 100%-100%-85% load imbalance over fundamental positive sequence control alone. Non-linear loads draw harmonic currents, and likewise cause harmonic distortion in power systems. A proposed harmonic control scheme is demonstrated to achieve near steady state errors for the low order harmonics due to non-linear loads. In particular, the THD is reduced from 22.3% to 5.2% for full three-phase diode rectifier loading, and from 11.3% to 1.5% for full balanced single-phase diode rectifier loading, over fundamental control alone.
Master of Science

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Alskran, Faleh A. "Dynamic modeling and analysis of the three-phase voltage source inverter under stand-alone and grid-tied modes". Thesis, Kansas State University, 2014. http://hdl.handle.net/2097/18220.

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Master of Science
Department of Electrical and Computer Engineering
Behrooz Mirafzal
Increasing energy demand, rising oil prices, and environmental concerns have forced attention to alternative energy sources that are environmentally friendly and independent of fossil fuels. Renewable energy sources (RES) have become an attractive alternative to the traditional energy sources for electric power generation. However, one of the main challenges of RES adaption arises when connecting RES to the electric grid. Voltage source inverters (VSIs), typically, connect RES to the electric grid. Similar to any engineering system, detailed dynamic models of the VSIs are needed for design and analysis purposes. However, due to the non-linearity of VSIs, development of dynamic models that can accurately describe their behavior is a complex task. In this thesis, a detailed averaged-state-space model of the two-level three-phase space vector pulse width modulation VSI and its companion LCL filter is derived. Because VSIs can operate under stand-alone and grid-tied modes, two models were derived for each case. In the derived models, the VSI modulation index m and phase angle ϕ are initially considered constant. In practice, however, these parameters are considered the main control parameters. To model these parameters as control inputs, small-signal models of the VSI under stand-alone and grid-tied modes were derived. To verify the accuracy of the developed large-signal and small-signal models, Matlab/Simulink simulations were carried out. The simulation results were compared against the models results. Moreover, the models were verified through lab experiments. The developed models can be used as design and analysis tools. In addition, the developed models can be used as fast and efficient simulation tools for system studies, when the modeling of switching transients is not needed. Nowadays, the number of VSIs connected to the electric grid is growing exponentially. The amount of time and computation needed to simulate VSIs using simulation software packages can be significantly decreased by the use of the developed models.

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Muhsen, Hani. "Three-Phase Voltage Source Inverter with Very High Efficiency Based on SiC Devices". Doctoral thesis, Universitätsbibliothek Chemnitz, 2016. http://nbn-resolving.de/urn:nbn:de:bsz:ch1-qucosa-199329.

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This dissertation aims at designing a three-phase voltage source inverter based on the SiC devices and mainly the SiC-MOSFET. The designed inverter offers a possibility to drive the power inverter with a very high efficiency, which can reach up to 99% for 16 kW rated power. The design is dedicated to the electric vehicle application, and it aims at • Providing a comparative study on some of the current discrete SiC devices in terms of the total losses and the thermal conductivity. In addition, a behavioral study of the effective channel mobility with temperature variation in the SiC MOSFET will be investigated. • Designing a gate driver which fits with the driving requirements of the SiC-MOSFET and provides a trade-off between the switching losses and the EMI behavior. • Designing a three-phase voltage source inverter with 16 kW rated power; the design includes minimizing the inverter losses and extracts the EMI model of the power inverter by considering the effects of the parasitic parameters; moreover a short guideline for selecting the heat-sink based on the static network is introduced. • Proposing a new and simplified carried-based PWM, this will reduce the harmonics in the output waveforms and enhance the utilization of the DC-link voltage. • Proposing a new strategy for compensating the dead-time effect in carrier based-PWM and to find out the proper dead-time level in VSI based on SiC –MOSFET. • Designing faults diagnosis and protection circuits in order to protect the power inverter from the common faults; overcurrent, short-circuit, overvoltage, and overtemperature faults.

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Lugo, Núñez David Rush. "High Power Density and Overcurrent Protection Challenges in the Design of a Three-Phase Voltage Source Inverter for Motor Drive Applications". Thesis, Virginia Tech, 2007. http://hdl.handle.net/10919/30982.

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The voltage source inverter (VSI) is certainly the most popular topology used in dc to ac power conversion. Virtually every commercial electric motor is driven by a VSI. There is a need for smaller and more efficient drives in high performance applications that is dictating unprecedented power density requirements on airborne motor drive systems. In reply to this need, higher switching frequencies are being sought and new switching devices like Silicon Carbide (SiC) JFETs have emerged. Although faster switching rates favor a reduction in the size of passive components and alleviate the current ripple in the inverter, a penalty is paid on switching losses. Owing to their low switching energy profile, SiC JFETs stand as promising candidates in high switching frequency environments. Their normally-on nature, however, raises a level of discomfort among designers due to the added complexities in the gate drive circuitry and the increased risk of dc bus shoot-through faults in voltage source inverters. Despite of these challenges the use of SiC JFETs continues proliferating in high power density applications. In an effort to study the new challenges introduced by this trend a 2 kW IGBT-based three-phase voltage source inverter operating at 65 kHz was designed, built, and tested. In addition a novel overcurrent protection residing in the inverter dc link is proposed in response to the concern of using normally-on devices in voltage source inverters. Successful hardware validation of both the VSI and the overcurrent protection circuit is supported with experimental results.
Master of Science

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Silva, Ivan da. "Modelagem e acionamento de uma máquina de indução de nove fases baseado em modulação espacial vetorial - SVPWM". Universidade Federal da Paraíba, 2015. http://tede.biblioteca.ufpb.br:8080/handle/tede/7558.

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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior - CAPES
The interest for the study of multiphase (more than three phases) machines and variable speed drives has substantially increased in the last two decades. The advantages presented by the multiphase systems compared to their three-phase counterparts have being the the main effort to increase researches all over the world. Reduction in torque oscillation, lower current ratings, high drive reliability, better fault tolerance and harmonic content reduction in the DC bus are some of these advantages. The additional degrees of freedom due to extra phases make multiphase systems very flexible when it comes to control systems and modulation strategies. Although three-phase systems are predominant in industrial applications, the use of multiphase machines and drives has increased in very specific areas such as locomotive traction, electric ship propulsion, aerospace industry (more electric aircraft), electric and hybrid vehicles and industrial high power systems. Due to high coupling degree between electric variables in multiphase systems, modeling of multiphase machines has been and still is a challenge task in research centers. In this present work, analitic modeling of symmetric and asymmetric nine-phase machines using natural variables and space vector decomposition are presented. The principles used in the study are the same used for three-phase systems. However, multiphase systems are analised in multiple d-q planes. PWM modulation strategies based on space vectors theory (SVPWM) for a voltage source inverter (VSI) are presented. The multiphase drive system presented works in the linear operation region with sinusoidal voltage generation. Results for both machines and drive modeled are verified by simulation programs developed in C programming language an Matlab.
O interesse pelo estudo de máquinas de indução multifases (mais de três fases) e dos seus sistemas de acionamento cresceu substancialmente nas últimas duas décadas. As muitas vantagens apresentadas pelos sistemas multifases, em relação aos sistemas trifásicos convencionais, têm sido fatores motivadores para o aumento de pesquisas em todo o mundo. Redução das oscilações de torque, redução da corrente por fase, maior confiabilidade do acionamento, grande tolerância à faltas e redução no conteúdo harmônico da corrente no barramento CC são algumas destas vantagens. O maior grau de liberdade proporcionado pelas fases extras torna os sistemas multifases bastante flexíveis quanto às estratégias de modulação e de controle. Apesar da atual predominância da utilização das máquinas e acionamentos trifásicos na indústria, as máquinas multifases estão sendo cada vez mais utilizadas em áreas de aplicações específicas tais como tração de locomotivas, propulsão de navios elétricos de grande porte, indústria aeroespacial, tração de veículos híbridos e elétricos e sistemas industriais de alta potência. Devido ao alto grau de acoplamento entre as variáveis elétricas de um sistema multifases, a modelagem e análise desses sistemas tem representado uma tarefa desafiadora nos centros de pesquisa. No presente trabalho são apresentadas as modelagens analíticas de uma máquina de indução de nove fases simétrica e de uma máquina de nove fases assimétrica pelo método de variáveis naturais e pelo método de decomposição vetorial. Os princípios utilizados na modelagem são os mesmos utilizados nos sistemas trifásicos. No entanto, sistemas multifases são analisados em múltiplos planos d-q. Estratégias de modulação PWM baseadas na teoria de vetores espaciais (SVPWM) para um inversor de nove fases tipo VSI (Inversor Fonte de Tensão) são apresentadas para acionamento das máquinas. O sistema de acionamento apresentado trabalha na região linear de operação e gera tensão de saída senoidal. Dados de simulação obtidos a partir de programas desenvolvidos em linguagem C e Matlab são apresentados para ambas as máquinas de nove fases modeladas.

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Thacker, Timothy Neil. "Control of Power Conversion Systems for the Intentional Islanding of Distributed Generation Units". Thesis, Virginia Tech, 2005. http://hdl.handle.net/10919/30814.

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Within the past decade, talk has arisen of shifting the utility grid from centralized, radial sources to a distributed network of sources, also known as distributed generation (DG); in the wake of deregulation, the California energy crisis, and northeastern blackouts. Existing control techniques for DG systems are designed to operate a system either in the connected or disconnected (islanding) mode to the utility; thus not allowing for both modes to be implemented and transitioned between. Existing detection and re-closure algorithms can also be improved upon. Dependent upon the method implemented, detection algorithms can either cause distortions in the output or completely miss a disturbance. The present re-closure process to reconnect to the utility is to completely shutdown and wait five minutes. The proposed methods of this study improve upon existing methods, via simulation and hardware experimentation, for DG systems that can intentionally islanding themselves. The proposed, â switched-modeâ , control allows for continuous operation of the system during disturbances by transitioning the mode of control to reflect the change in the system mode (grid-connected or islanding). This allows for zero downtimes without detrimental transients. The proposed detection method can sense disturbances that other methods cannot; and within 25 ms (approximately 1.5 line-cycles at 60 Hz). This method is an improvement over other methods because it eliminates the need to purposely distort the outputs to sense a disturbance. The proposed re-closure method is an improvement over the existing method due to the fact that it does not require the system to de-energize before re-synchronizing and reconnecting to the utility. This allows for DGs to continuously supply power to the system without having to shut down. Results show that the system is generally ready to reconnect after 2 to 5 line cycles.
Master of Science

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Tazay, Ahmad F. "Smart Inverter Control and Operation for Distributed Energy Resources". Scholar Commons, 2017. http://scholarcommons.usf.edu/etd/7097.

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The motivation of this research is to carry out the control and operation of smart inverters and voltage source converters (VSC) for distributed energy resources (DERs) such as photovoltaic (PV), battery, and plug-in hybrid electric vehicles (PHEV). The main contribution of the research includes solving a couple of issues for smart grids by controlling and implementing multifunctions of VSC and smart inverter as well as improving the operational scheme of the microgrid. The work is mainly focused on controlling and operating of smart inverter since it promises a new technology for the future microgrid. Two major applications of the smart inverter will be investigated in this work based on the connection modes: microgrid at grid-tied mode and autonomous mode. \indent In grid-tied connection, the smart inverter and VSC are used to integrate DER such as Photovoltaic (PV) and battery to provide suitable power to the system by controlling the supplied real and reactive power. The role of a smart inverter at autonomous mode includes supplying a sufficient voltage and frequency, mitigate abnormal condition of the load as well as equally sharing the total load's power. However, the operational control of the microgrid still has a major issue on the operation of the microgrid. The dissertation is divided into two main sections which are: 1- Low-level control of a single smart Inverter. 2- High-level control of the microgrid. The first part investigates a comprehensive research for a smart inverter and VSC technology at the two major connections of the microgrid. This involves controlling and modeling single smart inverter and VSC to solve specific issues of microgrid as well as improve the operation of the system. The research provides developed features for smart inverter comparing with a conventional voltage sourced converter (VSC). The two main connections for a microgrid have been deeply investigated to analyze a better way to develop and improve the operational procedure of the microgrid as well as solve specific issues of connecting the microgrid to the system. A detailed procedure for controlling VSC and designing an optimal operation of the controller is also covered in the first part of the dissertation. This section provides an optimal operation for controlling motor drive and demonstrates issues when motor load exists at an autonomous microgrid. It also provides a solution for specific issues at operating a microgrid at autonomous mode as well as improving the structural design for the grid-tied microgrid. The solution for autonomous microgrid includes changing the operational state of the switching pattern of the smart inverter to solve the issue of a common mode voltage (CMV) that appears across the motor load. It also solves the issue of power supplying to large loads, such as induction motors. The last section of the low-level section involves an improvement of the performance and operation of the PV charging station for a plug-in hybrid electric vehicle (PHEV) at grid-tied mode. This section provides a novel structure and smart controller for PV charging station using three-phase hybrid boost converter topology. It also provides a form of applications of a multifunction smart inverter using PV charging station. The second part of the research is focusing on improving the performance of the microgrid by integrating several smart inverters to form a microgrid. It investigates the issue of connecting DER units with the microgrid at real applications. One of the common issues of the microgrid is the circulating current which is caused by poor reactive power sharing accuracy. When more than two DER units are connected in parallel, a microgrid is forming be generating required power for the load. When the microgrid is operated at autonomous mode, all DER units participate in generating voltage and frequency as well as share the load's power. This section provides a smart and novel controlling technique to solve the issue of unequal power sharing. The feature of the smart inverter is realized by the communication link between smart inverters and the main operator. The analysis and derivation of the problem are presented in this section. The dissertation has led to two accepted conference papers, one accepted transaction IEEE manuscript, and one submitted IET transaction manuscript. The future work aims to improve the current work by investigating the performance of the smart inverter at real applications.

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Venugopal, S. "Study On Overmodulation Methods For PWM Inverter Fed AC Drives". Thesis, Indian Institute of Science, 2006. http://hdl.handle.net/2005/278.

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A voltage source inverter is commonly used to supply a variable frequency variable voltage to a three phase induction motor in a variable speed application. A suitable pulse width modulation (PWM) technique is employed to obtain the required output voltage in the line side of the inverter. Real-time methods for PWM generation can be broadly classified into triangle comparison based PWM (TCPWM) and space vector based PWM (SVPWM). In TCPWM methods such as sine-triangle PWM, three phase reference modulating signals are compared against a common triangular carrier to generate the PWM signals for the three phases. In SVPWM methods, a revolving reference voltage vector is provided as voltage reference instead of three phase modulating waves. The magnitude and frequency of the fundamental component in the line side are controlled by the magnitude and frequency, respectively, of the reference vector. The fundamental line side voltage is proportional to the reference magnitude during linear modulation. With sine-triangle PWM, the highest possible peak phase fundamental voltage is 0.5Vdc, where Vdc is the DC bus voltage, in the linear modulation zone. With techniques such as third harmonic injection PWM and space vector based PWM, the peak phase fundamental voltage can be as high as (formula) (i.e., 0:577Vdc)during linear modulation. To increase the line side voltage further, the operation of the VSI must be extended into the overmodulation region. The overmodulation region extends upto the six-step mode, which gives the highest possible ac voltage for a given (formula). In TCPWM based methods, increasing the reference magnitude beyond a certain level leads to pulse dropping, and gradually leads to six-step operation. However, in SVPWM methods, an overmodulation algorithm is required for controlling the line-side voltage during overmodulation and to achieve a smooth transition from PWM to six-step mode. Numerous overmodulation algorithms have been proposed in the literature for space vector modulated inverter. A well known algorithm among these divides the overmodulation zone into two zones, namely zone-I and zone-II. This is termed as the 'existing overmodulation algorithm' here. This algorithm is modified in the present work to reduce computational burden without much increase in the line current distortion. During overmodulation, the fundamental line side voltage and the reference magnitude are not proportional, which is undesirable from the control point of view. The present work ensures a linear relationship between the two. Apart from the fundamental component, the inverter output voltage mainly consists of harmonic components at high frequencies (around switching frequency and the integral multiples) during linear modulation. However, during overmodulation, low order harmonic components such as 5th, 7th, 11th, 13th etc., are also present in the output voltage. These low order harmonic voltages lead to low order harmonic currents in the motor. The sum of the lower order harmonic currents is termed as 'lower order current ripple'. The present thesis proposes a method for estimation of lower order current ripple in real-time. In closed loop current control, the motor current is fed back to the current controller. During overmodulation, the motor current contains low order harmonics, which appear in the current error fed to the controller. These harmonic currents are amplified by the current error amplifier deteriorating the performance of the drive. It is possible to filter the lower order harmonic currents before being fed back. However, filtering introduces delay in the current loop, and reduces the bandwidth even during linear modulation. In the present work, the estimated lower order current ripple is subtracted from the measured current before the latter is fed back to the controller. The estimation of lower order current ripple and the proposed current control are verified through simulation using MATLAB/SIMULINK and also experimentally on a laboratory prototype. The experimental setup comprises of a field programmable gate arrays (FPGA) based digital controller, an IGBT based inverter and a four-pole squirrel cage induction motor. (Pl refer the original document for formula)

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Voldoire, Adrien. "Outil de développement et d'optimisation dédié aux onduleurs SiC de forte puissance". Thesis, Université Grenoble Alpes, 2020. http://www.theses.fr/2020GRALT037.

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La volonté de diminuer la consommation en carburant en aéronautique amène à repenser les architectures de distribution et de conversion de puissance embarquées. L’utilisation d’un outil d’optimisation déterministe apparait comme une solution prometteuse pour prendre en compte les compromis intrinsèques aux convertisseurs statiques en pré-dimensionnement, avec pour objectif de minimiser leur masse. Un outil d’optimisation est donc proposé pour apporter des éléments de comparaison entre différentes topologies d’onduleur et entre différentes solutions technologiques.Le développement de l’outil passe par l’élaboration de modèles analytiques pour être compatible avec l’utilisation d’un algorithme à base de gradients. Une analyse harmonique reposant sur des transformées de Fourier permet de reconstituer les ondulations de chaque signal, en regard des normes aéronautiques. La modélisation s’intéresse également à la construction de modèles pour les composants passifs et actifs, permettant en particulier d’évaluer les pertes et donc le rendement du convertisseur. L’intégralité des modèles développés fait l’objet d’une validation expérimentale sur un prototype à 10 kW.L’utilisation d’un algorithme à base de gradient n’étant pas classique en électronique de puissance, des études sont menées pour valider la méthodologie proposée. Ces études montrent l’adéquation du choix d’un tel algorithme avec le besoin de pré-dimensionnement, tout en indiquant ses limites et les perspectives. Enfin, l’outil d’optimisation est utilisé pour comparer différentes solutions architecturales et technologiques sur des cas d’application aéronautiques. Les résultats obtenus sont discutés en regard des méthodes de dimensionnement classiques
The exponential development of aircraft transportation is a threat in the context of global warming. One of the solutions investigated consists in increasing the amount of embedded electrical power systems and actuators. Using a deterministic optimization tool appear as a promising solution to take into account the multiple compromises in a power converter design during the pre-design step, with the goal to minimize the weight. An optimization tool is proposed to bring comparative elements between different inverter topologies and technological solutions.The development of the tool requires elaborating analytical models to be compliant with the gradient-based algorithm. Harmonic analyses with Fourier transform enable calculating the signal ripples, to respect aircraft standards. Components are also designed precisely with appropriate loss models to estimate the converter efficiency. All the developed models are experimentally validated with a 10 kW prototype.As the use a gradient-based algorithm is not common in power electronics, studies are carried out to validate this proposed methodology. These studies show the effectiveness of the algorithm choice in the pre-design step, and indicates some limits and forecasts. Finally, the algorithm is used to compare different architectural and technological solutions on aircraft cases. The results are discussed regarding classical sizing methodologies

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Oberdorf, Michael Craig. "Power losses and thermal modeling of a voltage source inverter". Thesis, Monterey, Calif. : Springfield, Va. : Naval Postgraduate School ; Available from National Technical Information Service, 2006. http://library.nps.navy.mil/uhtbin/hyperion/06Mar%5FOberdorf.pdf.

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Thesis (M.S. in Electrical Engineering)--Naval Postgraduate School, March 2006.
Thesis Advisor(s): Alexander Julian. "March 2006." Includes bibliographical references (p. 103-104). Also available online.

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Libros sobre el tema "Voltage Source Inverter (VSI)"

Shokrollah-Timorabadi, Hamid. Voltage source inverter for voltage and frequency control of a stand-alone self-excited induction generator. Ottawa: National Library of Canada, 1998.

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Ozkaya, Mustafa. A control system for a GTO voltage source inverter induction machine for railway traction. Birmingham: University of Birmingham, 1988.

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Zeng, Jiaqi *. Transistor voltage source inverter for induction heating. 1989.

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Jain, Praveen Kumar. A voltage source inverter for a series tuned induction heating/melting load. 1987.

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Vaez-Zadeh, Sadegh. Introduction. Oxford University Press, 2018. http://dx.doi.org/10.1093/oso/9780198742968.003.0001.

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An overview of permanent magnet synchronous (PMS) motors and the related control system are presented in this chapter as introductory materials for the rest of the book. The interconnections of the control system to the power electronic inverter and the motor are emphasized. In addition, the major parts of the system are overviewed. Pulse width-modulated voltage source inverter, as the most commonly used power converter in PMS motor drives, is briefly discussed. PMS motors configurations and operating principles are also presented after considering characteristics of permanent magnet materials. Major PMS motor control methods including vector control, direct torque control, predictive control, deadbeat control, and combined vector and direct torque control are briefly reviewed. Finally, several rotor position and speed estimation schemes, and offline and online parameter estimation methods are overviewed.

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Capítulos de libros sobre el tema "Voltage Source Inverter (VSI)"

Masri, Syafrudin, M. K. Md. Desa y M. H. M. Hariri. "Design and Simulation of SPWM and SVPWM Based on Two Level Three Phase Voltage Source Inverter, VSI for Grid—Connected PV System". En 10th International Conference on Robotics, Vision, Signal Processing and Power Applications, 313–25. Singapore: Springer Singapore, 2019. http://dx.doi.org/10.1007/978-981-13-6447-1_40.

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Naing, Ye Win, Panarit Sethakul y Myo Thu Win. "Learning Enhancement of Electrical Engineering Students (TU Dawei) by Using the Developed Voltage Source Inverter (VSI) for 3-Phase Induction Motor Drives by Modern 32-bits Microcontroller". En Advances in Intelligent Systems and Computing, 430–42. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-40271-6_43.

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Ojha, Piyush Kumar y P. R. Thakura. "Analysis of Voltage Source Boost Inverter". En Lecture Notes in Electrical Engineering, 9–16. Singapore: Springer Singapore, 2018. http://dx.doi.org/10.1007/978-981-10-8234-4_2.

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Jagan, Vadthya y Udutha Prashanth. "Voltage-Lift-Type Z-Source Inverter". En Lecture Notes in Electrical Engineering, 397–410. Singapore: Springer Singapore, 2022. http://dx.doi.org/10.1007/978-981-19-1677-9_36.

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Bennia, Ilyas, Yacine Daili y Abdelghani Harrag. "LCL Filter Design for Low Voltage-Source Inverter". En Artificial Intelligence and Heuristics for Smart Energy Efficiency in Smart Cities, 332–41. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-92038-8_34.

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Buso, Simone y Paolo Mattavelli. "The Test Case: a Single-Phase Voltage Source Inverter". En Digital Control in Power Electronics, 7–32. Cham: Springer International Publishing, 2006. http://dx.doi.org/10.1007/978-3-031-02495-5_2.

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Priya, L. Sri Hansitha, K. Rajesh, U. Satya Sai Polaraju y N. Rajesh. "Simulation and Analysis of Seven-Level Voltage Source Inverter". En Advances in Intelligent Systems and Computing, 111–20. Singapore: Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-15-7394-1_10.

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Rana, Kailash y Dheeraj Joshi. "Open-Switch Fault Detection in NPC Voltage Source Inverter". En Studies in Infrastructure and Control, 203–11. Singapore: Springer Nature Singapore, 2023. http://dx.doi.org/10.1007/978-981-19-8963-6_19.

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Guo, Yunqi, Yang Yu, Yonggang Huang y Zhaoyang Zhou. "The Output Waveform Control Methods of Auxiliary Voltage Source Inverter". En Proceedings of the 2015 International Conference on Electrical and Information Technologies for Rail Transportation, 181–88. Berlin, Heidelberg: Springer Berlin Heidelberg, 2016. http://dx.doi.org/10.1007/978-3-662-49367-0_20.

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Kozak, Maciej. "Voltage Source Inverter Synchronization with the Use of FFT Algorithm". En Advances in Intelligent Systems and Computing, 258–68. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-15857-6_26.

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Actas de conferencias sobre el tema "Voltage Source Inverter (VSI)"

"Voltage source inverters (VSI)". En 2004 IEEE 35th Annual Power Electronics Specialists Conference (IEEE Cat. No.04CH37551). IEEE, 2004. http://dx.doi.org/10.1109/pesc.2004.1355158.

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Taha, Amna Babikir y Sharief F. Babiker. "Design and Simulation of Voltage Source Grid Connected Inverter (VSI)". En 2018 International Conference on Computer, Control, Electrical, and Electronics Engineering (ICCCEEE). IEEE, 2018. http://dx.doi.org/10.1109/iccceee.2018.8515850.

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Vu, Hoang Giang, Hamed Yahoui, Thierry Chorot y Hassan Hammouri. "Control active and reactive power of Voltage Source Inverter (VSI)". En 2012 2nd International Symposium on Environment-Friendly Energies and Applications (EFEA). IEEE, 2012. http://dx.doi.org/10.1109/efea.2012.6294057.

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Baharom, Rahimi, Nadiah Ahman y Nor Farahaida Abdul Rahman. "Development of Single-Phase Active Power Filter Using Voltage Source Inverter (VSI)". En 2019 IEEE 9th Symposium on Computer Applications & Industrial Electronics (ISCAIE). IEEE, 2019. http://dx.doi.org/10.1109/iscaie.2019.8743840.

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Ingle, Gaurav R. y Sheetal V. Umredkar. "Asymmetrical Two-Phase Induction Motor Using Two-Leg Voltage Source Inverter (VSI)". En 2018 Second International Conference on Computing Methodologies and Communication (ICCMC). IEEE, 2018. http://dx.doi.org/10.1109/iccmc.2018.8487845.

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Buchade, Pallavi C., Vishwesh A. Vyawahare y Vinodini V. Bhole. "Fractional-Order control of voltage source inverter (VSI) using Bode's ideal transfer function". En 2014 International Conference on Circuits, Systems, Communication and Information Technology Applications (CSCITA). IEEE, 2014. http://dx.doi.org/10.1109/cscita.2014.6839294.

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Zhang, Zhe, Ali M. Bazzi y Afia Semin. "An Active Zero-State Switch (AZS) for Commonmode Voltage Reduction in Voltage Source Inverter (VSI) Drives". En 2020 IEEE Applied Power Electronics Conference and Exposition (APEC). IEEE, 2020. http://dx.doi.org/10.1109/apec39645.2020.9124003.

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Qi, Yu, Li Peng, Zeyi Huang, Manlin Chen y Lei Sun. "Feedforward control of output current for three-phase voltage source inverter (VSI) with transformer". En 2014 IEEE Applied Power Electronics Conference and Exposition - APEC 2014. IEEE, 2014. http://dx.doi.org/10.1109/apec.2014.6803627.

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Ahmed, S., D. Boroyevich, F. Wang y R. Burgos. "Development of a new voltage source inverter (VSI) average model including low frequency harmonics". En 2010 IEEE Applied Power Electronics Conference and Exposition - APEC 2010. IEEE, 2010. http://dx.doi.org/10.1109/apec.2010.5433563.

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Bai, Haofeng, Xiongfei Wang, Poh Chiang Loh y Frede Blaabjerg. "Harmonic analysis and mitigation of low-frequency switching voltage source inverter with series LC filtered VSI". En 2017 IEEE Applied Power Electronics Conference and Exposition (APEC). IEEE, 2017. http://dx.doi.org/10.1109/apec.2017.7931170.

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