Academic literature on the topic 'CSI (current-source inverter)'
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Journal articles on the topic "CSI (current-source inverter)"
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Hosseinnia, Hamed, and Murteza Farsadi. "Utlization Cat Swarm Optimization Algorithm for Selected Harmonic Elemination in Current Source Inverter." International Journal of Power Electronics and Drive Systems (IJPEDS) 6, no. 4 (2015): 888. http://dx.doi.org/10.11591/ijpeds.v6.i4.pp888-896.
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The voltage source inverter (VSI) and Current source inverter (CSI) are two types of traditional power inverter topologies.In this paper selective harmonic elimination (SHE) Algorithm was impelemented to CSI and results has been investigated. Cat swarm (CSO) optimization is a new meta-heuristic algorithm which has been used in order to tuning switching parameters in optimized value.Objective fuction is reduction of total harmonic distortion(THD) in inverters output currents.All of simulation has been carried out in Matlab/Software.
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Vázquez, Nimrod, Luz del Carmen García, Claudia Hernández, et al. "A Grid-Connected Multilevel Current Source Inverter and Its Protection for Grid-Disconnection." International Journal of Photoenergy 2013 (2013): 1–10. http://dx.doi.org/10.1155/2013/575309.
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Traditionally DC-AC converters are considered with voltage source inverters (VSI); although less studied and discussed, it has started recently to be used current source inverters (CSI). Another possibility for DC/AC conversion is the multilevel configuration. This paper shows experimental operation and simulation analysis of a grid-connected multilevel current source inverter (MCSI), which includes a circuit for equipment safety reasons due to grid disconnections.
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Bai, Jing, Shi Qi Lu, and Jian Liu. "A Novel PWM Technology Based on High-Power Current Source Inverter." Advanced Materials Research 960-961 (June 2014): 910–15. http://dx.doi.org/10.4028/www.scientific.net/amr.960-961.910.
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This paper presents a new csi-hvusspwm technology with many advantages such as the better output waveforms and the high utilization ratio of dc voltage based on the study of the csi-spwm technology and csi-tpwm technology. Theoretical derivation and modulation principle of csi-hvusspwm technology are described in detail. Finally, the simulation results validate the feasibility and effectiveness of this novel technology.
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Bao, Jian Yu, Wei Bing Bao, and Zhong Chao Zhang. "A Generalized Three-Phase Multilevel Current-Source Inverter Topology." Applied Mechanics and Materials 88-89 (August 2011): 373–78. http://dx.doi.org/10.4028/www.scientific.net/amm.88-89.373.
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A generalized three-phase multilevel current-source inverter (MCSI) topology is proposed by implanting the generalized N-level current cells into a three-phase MCSI topology which is derived from the three-phase multilevel voltage-source inverter (MVSI) topology through dual conversion. In the generalized three-phase MCSI topology, each intermediate dc-link current level can be automatically balanced without adding any external circuits, thus a true multilevel structure is provided. Output current of each phase is independently modulated because of being supplied with two DC current-sources. This allows the wealth of existing knowledge relating to the operations, modulations and control strategies of multilevel VSI to be immediately applied to such multilevel CSI. Simulation results of 5-level and 7-level CSI systems are presented to verify the proposed three-phase MCSI topology.
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Iwaszkiewicz, Jan, and Adam Muc. "An analytic model of the CSI." Renewable Energy and Power Quality Journal 19 (September 2021): 636–40. http://dx.doi.org/10.24084/repqj19.369.
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A mathematical model of the current source inverter (CSI) operating in uncharacteristic states has been created in order to support research experiments. It permits to define general features of the CSI thanks to analytic expressions of voltage and current waveforms. The model describes the inverter in digital control time domain. It is useful in analysis of the inverter typical behaviour and transients and in designing of control algorithms.
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Migliazza, Giovanni, Emilio Lorenzani, Fabio Immovilli, and Giampaolo Buticchi. "Single-Phase Current Source Inverter with Reduced Ground Leakage Current for Photovoltaic Applications." Electronics 9, no. 10 (2020): 1618. http://dx.doi.org/10.3390/electronics9101618.
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Integrated power electronics for photovoltaic applications has attracted increasing interest, due to the possibility of having grid-connected photovoltaic modules with independent maximum power point tracking and high reliability. In this paper, a single-phase Current Source Inverter (CSI) is discussed for a photovoltaic application. The basic CSI topology will be explained for the sake of completeness, highlighting its main features and analyzing the ground leakage current problem, an important benchmark for photovoltaic application. A novel topology, called CSI5, is proposed in this work. The main feature is the presence of additional switches for ground leakage current reduction. The performance of the proposed topology is assessed by numerical simulation, and the experimental results confirm that this solution is able to strongly reduce the ground leakage current and conduction power losses.
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Suroso, Suroso, Winasis Winasis, Priswanto Priswanto, and Sholikhah Sholikhah. "Improving output current of inductor-cell based five-level CSI using hysteresis current controller." International Journal of Power Electronics and Drive Systems (IJPEDS) 12, no. 1 (2021): 249. http://dx.doi.org/10.11591/ijpeds.v12.i1.pp249-257.
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Current source inverter (CSI) operates to output a specified ac current waveform from dc current sources. Talking about power quality, harmonics distortion of ac waveform is a problem of an inverter circuit. Generating a multilevel current waveform will have less harmonics content than a traditional three-level current waveform. In addition to non-ideal conditions of power switches, i.e. voltage drop in diodes, conductors or controlled switches, the performance of current controller applied in an inverter circuit will considerably affect the ac waveform quality produced by inverter circuit. This paper presents and discusses application of hysteresis current controller in the five-level H-bridge with inductor-cell current source inverter. The current controller performance was compared with the proportional integral current controller. Some test results are presented and discussed to explore the advantages of hysteresis controller in reducing the current ripple and harmonics distortion of output current.
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Ashikin Azmi, Syahrul, Grain Philips Adam, and Siti Rafidah Abdul Rahim. "Voltage-controlled of a three-phase current source inverter in islanded operation." Indonesian Journal of Electrical Engineering and Computer Science 16, no. 1 (2019): 156. http://dx.doi.org/10.11591/ijeecs.v16.i1.pp156-164.
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This paper presents the performance of a three-phase current source inverter (CSI) in island mode voltage-controlled operation. Simple converter structure, low switching count and inherent boosting capability among the features offered by CSI. However, less investigation has been done with regards to the performance of CSI especially on its control system for island and grid-connected photovoltaic system. Thus, this study aims to investigate the suitability of proportional-integral (PI) and proportional-resonant (PR) control including their dynamic equations and state-space modeling. The results show that both controllers able to perform satisfactory in achieving zero steady-state error and balanced sinusoidal output voltage and current. PI control is superior in fast response time and excellent harmonic rejection than inverter using PR control PR control on the other hand, able to give more robust performance during imbalance occur than PI control due to individual control of the phases. This study may becomes one of the references with regard to current source inverter for early career researchers. as All results presented in this paper are verified with varying operational parameters in MATLAB/ SIMULINK platform.
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Kang, Wei, Li Xia Zhang, and Zhen Lei. "Double Closed-Loop Control System of Bi-Direction Current Source Inverter." Advanced Materials Research 204-210 (February 2011): 699–703. http://dx.doi.org/10.4028/www.scientific.net/amr.204-210.699.
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The double closed-loop control system of current source SPWM inverter (CSI) is designed to meet the need of battery pack testing system. The battery pack has tiny inner resistance, back electromotive force and it acted as a comparative load which made the control system hard to design. The control system aimed at the specialty of the battery pack load and put forward a loop-locked control method based on dq coordinate conversion of CSI. Typical I and II control system is adopted to get a better performance. It increases the transform efficiency by SPWM and gets high power factor and high dynamic response quality by dq coordinate conversion. Simulations and tests proved the correctness and feasibility of the control system.
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Zakzouk, Nahla E., Ahmed K. Abdelsalam, Ahmed A. Helal, and Barry W. Williams. "High Performance Single-Phase Single-Stage Grid-Tied PV Current Source Inverter Using Cascaded Harmonic Compensators." Energies 13, no. 2 (2020): 380. http://dx.doi.org/10.3390/en13020380.
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In this paper, a single-phase single-stage photovoltaic (PV) grid-tied system is investigated. The conventional pulse width modulated (PWM) voltage source inverter (VSI) is replaced by a PWM current source inverter (CSI) for its voltage boosting capabilities, inherent short-circuit proof and higher reliability features. Modeling, design, and analysis of the considered CSI are presented altogether with enhanced proposed control loops aided with a modified PWM technique. DC-link even current harmonics are commonly reflected as low-order odd harmonics in the grid resulting in a poor quality grid current. In order to overcome the latter, a high performance proportional resonant controller, applied in the inverter inner grid current loop, is proposed using cascaded resonant control units tuned at low-order frequencies to eliminate injected grid current harmonics. Hence, with a less-bulky smoothing inductor at the CSI DC-side, grid power quality and system efficiency are simultaneously improved. Simulation and experimental results verify the proposed controller effectiveness.
Dissertations / Theses on the topic "CSI (current-source inverter)"
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Fernández, Palomeque Efrén Esteban. "Optimization of a CSI inverter and DC/DC elevator with silicon carbide devices, for applications in electric traction systems." Doctoral thesis, Universitat Politècnica de Catalunya, 2019. http://hdl.handle.net/10803/666485.
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The applications of electric traction systems currently focus on developing technologies with greater energy efficiency and lower environmental impact. Manufacturers of hybrid and electric vehicles are looking for ways to improve and optimize the efficiency of their models.
Manufacturers are looking for more efficient and more compact converter topologies. The use of new band gap materials in the construction of these topologies has generated many debates and new lines of research especially in the optimization of these topologies. The silicon carbide (SiC) based switching devices provide significant performance improvements in many aspects, including lower power dissipation, higher operating temperatures, and faster switching, compared with conventional Si devices, all these features make that these devices generate interest in applications for electric traction systems.
This work presents a method for improving total harmonic distortion (THD) in the currents of output and efficiency in SiC current source inverter for future application in an electric traction system. The method proposed consists in improving the coupling of a bidirectional converter topology V-I and CSI. The V-I converter serves as a current regulator for the CSI and allows the recovery of energy. The method involves an effective selection of the switching frequencies and phase angles for the carriers signals present in each converter topology. With this method, it is expected to have a reduction of the total harmonic distortion THD in the output currents. In addition, an analysis of the losses in the motor and topologies of power converters is developed considering the optimization method previously analyzed. The weighted average efficiency of the whole system (power converters + motor) in differents conditions of operations is presented.<br>Las aplicaciones de los sistemas de tracción eléctrica actualmente se centran en el desarrollo de tecnologías con mayor eficiencia energética y menor impacto ambiental. Los fabricantes de vehículos híbridos y eléctricos están buscando formas de mejorar y optimizar la eficiencia de sus modelos. Los fabricantes buscan topologías de convertidores más eficientes y más compactas. El uso de nuevos materiales de banda prohibida en la construcción de estas topologías ha generado muchos debates y nuevas líneas de investigación, especialmente en la optimización energética de las mismas. Los dispositivos de conmutación basados en carburo de silicio (SiC) proporcionan mejoras significativas en la eficiencia en muchos aspectos, incluida una menor disipación de potencia, temperaturas de funcionamiento más altas y una conmutación más rápida, en comparación con los dispositivos de Si convencionales. Todas estas características hacen que estos dispositivos generen interés en las aplicaciones de sistemas tracción eléctrica. Este trabajo presenta un método para mejorar la distorsión armónica total (THD) en las corrientes de salida y eficiencia en el inversor de fuente de corriente SiC para aplicaciones futuras en un sistema de tracción eléctrica. El método propuesto consiste en mejorar el acoplamiento de una topología de convertidor bidireccional V-I y CSI. El convertidor V-I sirve como un regulador de corriente para el CSI y permite la recuperación de energía. El método implica una selección efectiva de las frecuencias de conmutación y los ángulos de fase para las señales portadoras presentes en cada topología del convertidor. Con este método, se espera una reducción de la distorsión armónica total THD en las corrientes de salida. Además, se desarrolla un análisis de las pérdidas en el motor y las topologías de los convertidores de potencia considerando el método de optimización analizado previamente. Se presenta la eficiencia promedio ponderada de todo el sistema (convertidores de potencia + motor) en diferentes condiciones de operación
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Rodrigues, Rui Tiago Gonçalves. "Inversor fonte de corrente para sistemas fotovoltaicos." Master's thesis, 2014. http://hdl.handle.net/1822/41910.
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Dissertação de mestrado integrado em Engenharia Eletrónica Industrial e Computadores<br>Os sistemas solares fotovoltaicos são cada vez mais uma opção para a produção de
energia elétrica uma vez que são uma fonte de energia limpa e renovável e, com o passar
dos anos, fruto da investigação realizada, a sua eficiência máxima tem vindo a aumentar.
Para a interface entre os painéis solares fotovoltaicos (CC) e a rede elétrica (CA) é
indispensável o uso de um inversor (conversor CC-CA), que deverá ser otimizado para
que seja possível extrair a máxima energia dos painéis solares fotovoltaicos, garantindo
a qualidade da energia elétrica injetada na rede elétrica.
Existem diferentes topologias de inversores que podem ser utilizados nestes
sistemas, sendo que a mais utilizada é o inversor fonte de tensão ou VSI (Voltage Source
Inverter). Nesta dissertação de mestrado foi desenvolvida uma solução com base num
inversor fonte de corrente ou CSI (Current-Source Inverter), procurando explorar os seus
benefícios.
Além de estudar as principais topologias de inversor, antes de implementar o
sistema foi efetuado um estudo sobre o estado da arte para melhor se compreender os
sistemas solares fotovoltaicos, assim como as principais técnicas de modulação aplicáveis
ao conversor utilizado no âmbito desta dissertação. Tendo em conta as caraterísticas do
sistema pretendido, selecionou-se então um inversor fonte de corrente trifásico e
desenvolveu-se uma técnica de modulação híbrida, baseada em modulação de espaço de
vetores e amostragem periódica.
Todo o circuito de potência e respetivo sistema de controlo foram testados e
validados recorrendo a simulações computacionais em PSIM e Matlab e, após esta
validação, foi implementado todo o sistema em laboratório, tendo sido construído um
protótipo laboratorial.
Para finalizar, realizaram-se testes laboratoriais para verificar o funcionamento do
inversor, assim como para analisar a qualidade da energia elétrica injetada pelo mesmo.<br>Solar photovoltaic systems are an increasing option for electricity production, since
they are a clean renewable energy source, and over the years, as a result of the research,
their efficiency has been increasing. For the interface between the photovoltaic solar array
(DC) and the electrical grid (AC) the use of an inverter (DC-AC converter) is necessary,
which should be optimized to extract the maximum power from the photovoltaic solar
array, guaranteeing the electrical power quality.
There are different topologies of inverters that can be used in these systems, but the
most common is the Voltage-Source Inverter (VSI). In this master thesis a solution based
on a Current-Source Inverter (CSI) was developed, seeking to exploit its benefits.
Besides the study of the main existing inverter topologies, before implementing the
system, a study about the state of the art was made to better understand solar photovoltaic
systems, as well as the main modulation techniques applicable to the converter used in
this master thesis. Taking into account the characteristics of the desired system, a
three-phase current-source inverter was selected and a hybrid modulation technique,
based on space-vector modulation and periodic sampling was developed.
All the power circuit and the respective control systems were tested and validated
using computer simulations in PSIM and Matlab and, after this validation, the whole
system was implemented in laboratory, resulting in a prototype.
Finally, to assess the operation of the inverter, as well as to analyze the electrical
power quality, laboratory tests were performed.
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Pinto, Fernando Rui de Castro Guimarães. "Desenvolvimento de um filtro ativo paralelo com CSI e controlo de corrente no barramento CC." Master's thesis, 2013. http://hdl.handle.net/1822/40020.
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Dissertação de mestrado integrado em Engenharia Eletrónica Industrial e Computadores<br>A Qualidade de Energia Elétrica é um assunto cada vez mais importante devido ao
crescente número de problemas e custos relacionados com a diminuição dos níveis de
Qualidade de Energia Elétrica. Para compensar os atuais problemas de Qualidade de
Energia Elétrica foram desenvolvidos os filtros ativos de potência, que possuem uma
resposta temporal rápida, sendo capazes de se adaptar dinamicamente às condições do
sistema que estão a compensar.
Nesta Dissertação de Mestrado são apresentadas as principais topologias de filtros
ativos de potência, sendo que a utilizada foi o Filtro Ativo Paralelo. Esta é considerada
uma das mais importantes, por ser capaz de efetuar compensações a nível das correntes.
Para a implementação deste filtro ativo de potência foi necessário definir o tipo de
inversor, a teoria de controlo e a técnica de modulação a serem utilizadas. Tendo isto
em conta, foi efetuado o levantamento do estado da arte relativo aos inversores
utilizados em filtros ativos de potência, assim como das principais teorias de controlo e
técnicas de modulação aplicáveis no âmbito desta Dissertação. Após isto, foi
selecionado o Inversor Tipo Fonte de Corrente (Current-Source Inverter - CSI). A
teoria de controlo e a técnica de modulação escolhidas foram, respetivamente, a
Teoria p-q e a Modulação Vetorial (Space Vector Modulation - SVM).
O sistema de controlo e os circuitos de potência foram simulados no software
PSIM para que seja possível validar a sua correta implementação e funcionamento. Uma
vez obtida essa validação, os circuitos e sistemas de controlo foram implementados em
laboratório, para verificar o seu funcionamento.
Finalmente, é de referir que com esta Dissertação pretende-se contribuir para a
investigação da utilização de Inversores Tipo Fonte de Corrente em Filtros Ativos
Paralelos.<br>Power Quality is a subject with ever increasing importance due to the rising
numbers of problems and costs related with the reduction of the Power Quality levels.
To compensate the Power Quality problems were developed active power filters that
have a quick time response, and that are capable of adapting to the conditions of the
system they are compensating.
In this Master Thesis are presented the main topologies of active power filters,
with the Shunt Active Power Filter being implemented. This topology is considered to
be one of the most important active power filter topologies, because it is capable of
performing current compensation. For the implementation of this active power filter, it
was necessary to define the type of inverter, the control strategy and the modulation
technique to be used. Regarding this, a research of the state of the art of inverters,
control strategies and modulation techniques used in Shunt Active Filters was
performed. After this, the Current-Source Inverter (CSI) was selected. The control
strategy and the modulation technique implemented were the p-q Theory and the Space
Vector Modulation (SVM), respectively.
The control and power circuits were simulated using the software PSIM, so that
their operation could be validated. Once this validation was obtained, these systems
were implemented in laboratory, to assess their operation capabilities.
Finally, it must be said that with this work it is intended to contribute to the
research of the use of Current Source Inverters in Shunt Active Power Filters.
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Costa, Luís Carlos da Silva. "Conversor CC-CC para aplicação em filtro ativo paralelo do tipo fonte de corrente." Master's thesis, 2017. http://hdl.handle.net/1822/56556.
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Dissertação de mestrado em Engenharia Eletrónica Industrial e de Computadores<br>Atualmente, a utilização de cargas não lineares é cada vez mais frequente. Estas, originam problemas de qualidade de energia elétrica (QEE), resultando em várias consequências, como falhas em equipamentos eletrónicos, podendo causar prejuízos elevados em diversos setores. Os filtros ativos de potência, que também podem fazer interface com fontes de energia renovável, apresentam-se como uma boa solução para mitigar estes problemas.
Nesta dissertação de mestrado apresentam-se as topologias de filtros ativos de potência, tendo sido simulada uma topologia de Filtro Ativo Paralelo do Tipo Fonte de Corrente. Nesta simulação, para além do inversor fonte de corrente (Current-Source Inverter - CSI), implementou-se um algoritmo baseado na Teoria p-q, bem como a técnica de modulação vetorial (Space-Vector Modulation - SVM). Estas técnicas foram as escolhidas para efetuar o controlo e a modulação do Filtro Ativo Paralelo do Tipo Fonte de Corrente.
Nesta dissertação é ainda efetuado um estudo sobre o estado da arte dos conversores CC-CC utilizados em sistemas solares fotovoltaicos, e sobre os sistemas de controlo aplicáveis aos mesmos. Tendo em conta as características do sistema, foi selecionado o conversor CC-CC push-pull, sendo o mesmo simulado e implementado. Nesta dissertação é realizado o dimensionamento e a construção do transformador de alta-frequência deste conversor CC-CC. São ainda apresentadas as placas do andar de potência e o sistema de controlo, desenvolvido no DSP TMS320F28335 da Texas Instruments.
A presente dissertação de mestrado apresenta também os testes realizados ao transformador de alta-frequência e ao conversor CC-CC push-pull a operar isoladamente. São ainda apresentados resultados experimentais para a operação de todas as placas desenvolvidas.<br>Nowadays, the use of no-linear loads in industry and by general consumers is increasingly common. This situation causes Power Quality problems, resulting in various consequences, such as flaws in electronic equipment, which may cause revenue losses in several sectors. Besides that, Power Quality problems contributes to the increase of efficiency losses in domestic and industrial equipment, and also in the electrical installations. The Active Power Filters, which can be incorporated with Renewable Energy solutions, are a good solution to mitigate these problems.
In this Master Thesis are presented the main topologies of Active Power Filters, with Current-Source Shunt Active Power Filter being simulated. In this simulation, in addition to the Current-Source Inverter, an algorithm based on the p-q Theory and the Space Vector Modulation technique was implemented. These techniques were chosen to control and modulate the Current-Source Shunt Active Power Filter.
In this work, it is also made a study about the state of the art of DC-DC Converters used in Photovoltaic Solar Systems, and the control systems that can be applied to them. Considering the characteristics of the system, the DC-DC Push Pull Converter has been selected, where it is simulated and implemented. In this Master Thesis the design and construction of the high-frequency transformer of this converter was developed. The power stage boards and the control system, implemented in the Texas Instruments microcontroller DSP TMS320F28335, are also developed and presented.
This work also presents the tests performed for the developed high-frequency transformer and DC-DC Push Pull Converter. Experimental results of all developed circuits are presented.
Conference papers on the topic "CSI (current-source inverter)"
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Sesha Swetha, T., and R. V. D. Rama Rao. "Transient simulation of minimum current ripple-hybrid multi-level current source inverter (CSI)." In Third International Conference on Computational Intelligence and Information Technology (CIIT 2013). Institution of Engineering and Technology, 2013. http://dx.doi.org/10.1049/cp.2013.2621.
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Baharom, Rahimi, Muhammad Zahir Rosman, Ihsan Yassin, and Nor Farahaida Abdul Rahman. "Development of Single-Phase Active Power Filter Using Current Source Inverter (CSI)." In 2019 IEEE 9th Symposium on Computer Applications & Industrial Electronics (ISCAIE). IEEE, 2019. http://dx.doi.org/10.1109/iscaie.2019.8743834.
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Baoze Wei, Juan C. Vasquez, Josep M. Guerrero, and Xiaoqiang Guo. "Control architecture for paralleled current-source-inverter (CSI) based uninterruptible power systems (UPS)." In 2016 IEEE 8th International Power Electronics and Motion Control Conference (IPEMC 2016 - ECCE Asia). IEEE, 2016. http://dx.doi.org/10.1109/ipemc.2016.7512278.
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Potdukhe, Kalyani C., A. P. Munshi, and A. A. Munshi. "Reliability prediction of new improved current source inverter (CSI) topology for transformer-less grid connected solar system." In 2015 IEEE Power, Communication and Information Technology Conference (PCITC). IEEE, 2015. http://dx.doi.org/10.1109/pcitc.2015.7438194.
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"Current source inverters (CSI)." In 2004 IEEE 35th Annual Power Electronics Specialists Conference (IEEE Cat. No.04CH37551). IEEE, 2004. http://dx.doi.org/10.1109/pesc.2004.1355804.
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Spencer, Roy C., and Arnold Rivera. "Establishing the “Fitness for Use Criteria” for Pipe Line Variable Frequency Drives." In 1996 1st International Pipeline Conference. American Society of Mechanical Engineers, 1996. http://dx.doi.org/10.1115/ipc1996-1887.
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“Fitness For Use”[1] criteria are used to define project quality. This paper documents how to establish the “Fitness For Use” criteria for pipe line variable frequency drives (VFD’s). A Pipe Line VFD project’s life cycle process together with the technical requirements” determine its “fitness for use”. Effective definition and management of these “life cycle requirements”, therefore ensures a quality result. In summary, this paper documents how the “Fitness For Use Criteria” methodology was successfully used on the IPL Capacity Expansion Program to: (a) establish the project process; (b) engineer, procure, construct, commission and start-up the VFD systems; and (c) carry out training plus technically support the pipe line’s early operation phase. The Canadian section of IPL’s Line 13 is powered by eight pump stations containing five 3750 hp and three 6250hp, current source inverter (CSI)[2] based VFDs; this equipment was installed and commissioned in 1994, and has been in operation for 18 months.