Relevant bibliographies by topics / Dc/ac Power Conversion

Contents

  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'Dc/ac Power Conversion'

Author: Grafiati
Published: 4 June 2021
Last updated: 16 February 2022

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the lists of relevant articles, books, theses, conference reports, and other scholarly sources on the topic 'Dc/ac Power Conversion.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Journal articles on the topic "Dc/ac Power Conversion"

1

Goodman, C. J. "Power Electronic Convertors: AC/DC Conversion." IEE Proceedings B Electric Power Applications 134, no. 3 (1987): 134. http://dx.doi.org/10.1049/ip-b.1987.0021.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

Cho, Yong-Won, Chun-Yoon Park, and Bong-Hwan Kwon. "Single Power-conversion AC-DC Converter with High Power Factor." Transactions of the Korean Institute of Power Electronics 19, no. 1 (February 20, 2014): 23–30. http://dx.doi.org/10.6113/tkpe.2014.19.1.23.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

Kumar, Srisanthosh. "Single Power-Conversion Ac–Dc Converter with High Power Factor Based On ZVZCS for Dc Drive Applications." International Journal of Psychosocial Rehabilitation 23, no. 4 (December 20, 2019): 627–38. http://dx.doi.org/10.37200/ijpr/v23i4/pr190397.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

Akherraz, M. "IGBT Based DC/DC Converter." Sultan Qaboos University Journal for Science [SQUJS] 2 (December 1, 1997): 49. http://dx.doi.org/10.24200/squjs.vol2iss0pp49-56.

Full text
Abstract:
This paper presents an in-depth analytical and experimental investigation of an indirect DC-DC converter. The DC-AC conversion is a full bridge based on IGBT power modules, and the AC-DC conversion is done via a high frequency AC link and a first diode bridge. The AC link, which consists of snubbing capacitors and a variable air-gap transformer, is analytically designed to fulfill Zero Voltage commutation requirement. The proposed converter is simulated using PSPICE and a prototype is designed built and tested in the laboratory. PSPICE simulation and experimental results are presented and compared.
APA, Harvard, Vancouver, ISO, and other styles
5

Sivapriyan, R., and D. Elangovan. "Impedance-Source DC-to-AC/DC Converter." Electronics 8, no. 4 (April 16, 2019): 438. http://dx.doi.org/10.3390/electronics8040438.

Full text
Abstract:
This article presents a novel impedance-source-based direct current (DC)-to-alternating current (AC)/DC converter (Z-Source DAD Converter). The Z-Source DAD converter converts the input DC voltage into AC or DC with buck or boost in the load voltage. This Z-Source DAD conversion circuit is a single-stage power conversion system. This converter circuit converts the input DC voltage into variable-magnitude output DC voltage or converts the DC voltage into a variable-magnitude output AC voltage. The higher voltage magnitude in boost mode can be controlled by controlling the shoot-through (ST) state timing of the converter. MATLAB-Simulink simulation and microcontroller-based hardware circuit results are presented to demonstrate power conversion with the buck and boost features of the Z-Source DAD converter for both types of output voltages. The simulation and experimental results show that the Z-Source DAD converter converts the given DC supply into AC or DC with buck or boost in the output load voltage.
APA, Harvard, Vancouver, ISO, and other styles
6

Cho, Yong-Won, and Bong-Hwan Kwon. "Active-Clamp AC-DC Converter with Direct Power Conversion." Transactions of the Korean Institute of Power Electronics 17, no. 3 (June 20, 2012): 230–37. http://dx.doi.org/10.6113/tkpe.2012.17.3.230.

Full text
APA, Harvard, Vancouver, ISO, and other styles
7

Badrzadeh, Babak. "Power conversion systems for modern ac-dc power systems." European Transactions on Electrical Power 22, no. 7 (August 18, 2011): 879–906. http://dx.doi.org/10.1002/etep.611.

Full text
APA, Harvard, Vancouver, ISO, and other styles
8

Zhang, Kai Feng, and Hai Ming Zhou. "Hierarchical Structural Model of AC/DC Power Systems." Applied Mechanics and Materials 313-314 (March 2013): 821–27. http://dx.doi.org/10.4028/www.scientific.net/amm.313-314.821.

Full text
Abstract:
The hierarchical decomposition and modeling method of large-scale power systems proposed previously is expanded to be suitable for AC/DC power systems in this paper. In the new model of AC/DC systems, DC systems will have the same position as AC systems. The components in AC/DC power systems are classified into three categories, namely conversion components, DC components and AC components. By analyzing the difference between DC interface and AC interface, the unified structural model suitable for any kind of component in AC/DC systems is built. Then, the hierarchical structural model is derived based on the hierarchical decomposition method. The main characteristics of the proposed AC/DC model are the same as that of previous AC model.
APA, Harvard, Vancouver, ISO, and other styles
9

Oğuz, Yüksel, İrfan Güney, and Hüseyin Çalık. "Power Quality Control and Design of Power Converter for Variable-Speed Wind Energy Conversion System with Permanent-Magnet Synchronous Generator." Scientific World Journal 2013 (2013): 1–14. http://dx.doi.org/10.1155/2013/783010.

Full text
Abstract:
The control strategy and design of an AC/DC/AC IGBT-PMW power converter for PMSG-based variable-speed wind energy conversion systems (VSWECS) operation in grid/load-connected mode are presented. VSWECS consists of a PMSG connected to a AC-DC IGBT-based PWM rectifier and a DC/AC IGBT-based PWM inverter with LCL filter. In VSWECS, AC/DC/AC power converter is employed to convert the variable frequency variable speed generator output to the fixed frequency fixed voltage grid. The DC/AC power conversion has been managed out using adaptive neurofuzzy controlled inverter located at the output of controlled AC/DC IGBT-based PWM rectifier. In this study, the dynamic performance and power quality of the proposed power converter connected to the grid/load by output LCL filter is focused on. Dynamic modeling and control of the VSWECS with the proposed power converter is performed by using MATLAB/Simulink. Simulation results show that the output voltage, power, and frequency of VSWECS reach to desirable operation values in a very short time. In addition, when PMSG based VSWECS works continuously with the 4.5 kHz switching frequency, the THD rate of voltage in the load terminal is 0.00672%.
APA, Harvard, Vancouver, ISO, and other styles
10

Reddy, K. Rajasekhara, V. Nagabhaskar Reddy, and M. Vijaya Kumar. "Control of Single Stage Grid Tied Photovoltaic Inverter Using Incremental Conductance Method." International Journal of Power Electronics and Drive Systems (IJPEDS) 9, no. 4 (December 1, 2018): 1702. http://dx.doi.org/10.11591/ijpeds.v9.i4.pp1702-1708.

Full text
Abstract:
In this investigation, a study on grid-connected Photovoltaic (PV) system with single stage power conversion (SSPC) is proposed. Double Stage Power Conversion (DSPC) topology contains two power conversion stages namely DC-DC conversion and DC-AC conversion, but the SSPC system converts DC power to high-quality AC power supply for grid connected PV system. The SSPC system has several advantages over DSPC, such as better use of the PV arrays, higher efficiency, low cost and compact size. Present work proposes a Sinusoidal Pulse Width Modulation (SPWM) along with incremental conductance Maximum Power Point Tracking (IC-MPPT) for inverter switching. The PV voltage and Grid Voltages verifies under normal and change of atmospheric conditions using MATLAB / SIMULINK.
APA, Harvard, Vancouver, ISO, and other styles
More sources

Dissertations / Theses on the topic "Dc/ac Power Conversion"

1

McClure, Morgan Taylor. "A Modular Architecture for DC-AC Conversion." Case Western Reserve University School of Graduate Studies / OhioLINK, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=case1340812711.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

Wang, Kunrong. "High-Frequency Quasi-Single-Stage (QSS) Isolated AC-DC and DC-AC Power Conversion." Diss., Virginia Tech, 1998. http://hdl.handle.net/10919/29394.

Full text
Abstract:
The generic concept of quasi-single-stage (QSS) power conversion topology for ac-dc rectification and dc-ac inversion is proposed. The topology is reached by direct cascading and synchronized switching of two variety of buck or two variety of boost switching networks. The family of QSS power converters feature single-stage power processing without a dc-link low-pass filter, a unidirectional pulsating dc-link voltage, soft-switching capability with minimal extra commutation circuitry, simple PWM control, and high efficiency and reliability. A new soft-switched single-phase QSS bi-directional inverter/rectifier (charger) topology is derived based on the QSS power conversion concept. A simple active voltage clamp branch is used to clamp the otherwise high transient voltage on the current-fed ac side, and at the same time, to achieve zero-voltage-switching (ZVS) for the switches in the output side bridge. Seamless four-quadrant operation in the inverter mode, and rectifier operation with unity power factor in the charger (rectifier) mode are realized with the proposed uni-polar center-aligned PWM scheme. Single-stage power conversion, standard half-bridge connection of devices, soft-switching for all the power devices, low conduction loss, simple center-aligned PWM control, and high reliability and efficiency are among its salient features. Experimental results on a 3 kVA bi-directional inverter/rectifier prototype validate the reliable operation of the circuit. Other single-phase and three-phase QSS bi-directional inverters/rectifiers can be easily derived as topological extensions of the basic QSS bi-directional inverter/rectifier. A new QSS isolated three-phase zero-voltage/zero-current-switching (ZVZCS) buck PWM rectifier for high-power off-line applications is also proposed. It consists of a three-phase buck bridge switching under zero current and a phase-shift-controlled full-bridge with ZVZCS, while no intermediate dc-link is involved. Input power and displacement factor control, input current shaping, tight output voltage regulation, high-frequency transformer isolation, and soft-switching for all the power devices are realized in a unified single stage. Because of ZVZCS and single-stage power conversion, it can operate at high switching frequency while maintaining reliable operation and achieving higher efficiency than standard two-stage approaches. A family of isolated ZVZCS buck rectifiers are obtained by incorporating various ZVZCS schemes for full-bridge dc-dc converters into the basic QSS isolated buck rectifier topology. Experimental and simulation results substantiate the reliable operation and high efficiency of selected topologies. The concept of charge control (or instantaneous average current control) of three-phase buck PWM rectifiers is introduced. It controls precisely the average input phase currents to track the input phase voltages by sensing and integrating only the dc rail current, realizes six-step PWM, and features simple implementation, fast dynamic response, excellent noise immunity, and is easy to realize with analog circuitry or to integrate. One particular merit of the scheme is its capability to correct any duty-cycle distortion incurred on only one of the two active duty-cycles which often happens in the soft-switched buck rectifiers, another merit is the smooth transition of the input currents between the 60o sectors. Simulation and preliminary experimental results show that smooth operations and high quality sinusoidal input currents in the full line cycle are achieved with the control scheme.
Ph. D.
APA, Harvard, Vancouver, ISO, and other styles
3

Chen, Weilun Warren. "Bidirectional Three-Phase AC-DC Power Conversion Using DC-DC Converters and a Three-Phase Unfolder." DigitalCommons@USU, 2017. https://digitalcommons.usu.edu/etd/6905.

Full text
Abstract:
Strategic use of energy storage systems alleviates imbalance between energy generation and consumption. Battery storage of various chemistries is favorable for its relatively high energy density and high charge and discharge rates. Battery voltage is in dc, while the distribution of electricity is still predominantly in ac. To effectively harness the battery energy, a dc-ac inverter is required. A conventional inverter contains two high-frequency switching stages. The battery-interfacing stage provides galvanic isolation and switches at high frequency to minimize the isolation transformer size. The grid-interfacing stage also operates at high frequency to obtain sinusoidal grid currents and the desired power. Negative consequences of high-frequency switching include increased switching loss and the generation of large voltage harmonics that require filtering. This dissertation proposes an alternative two-stage inverter topology aimed at reducing converter size and weight. This is achieved by reducing the number of high-frequency switching stages and associated filter requirements. The grid-interfacing stage is operated at the line frequency, while only the battery-interfacing stage operates at high frequency to shape the line currents and control power flow. The line-frequency operation generates negligible switching loss and minimal current harmonics in the grid-interfacing stage. As a result, the required filter is reduced in size. Hardware designs are performed and compared between the conventional and proposed converters to quantify expected size reduction. Control methods are developed and verified in simulation and experiment to obtain high-quality line currents at all power factors.
APA, Harvard, Vancouver, ISO, and other styles
4

Song, Yu Jin. "Analysis and design of high frequency link power conversion systems for fuel cell power conditioning." Diss., Texas A&M University, 2004. http://hdl.handle.net/1969.1/2678.

Full text
Abstract:
In this dissertation, new high frequency link power conversion systems for the fuel cell power conditioning are proposed to improve the performance and optimize the cost, size, and weight of the power conversion systems. The first study proposes a new soft switching technique for the phase-shift controlled bi-directional dc-dc converter. The described dc-dc converter employs a low profile high frequency transformer and two active full-bridge converters for bidirectional power flow capability. The proposed new soft switching technique guarantees soft switching over wide range from no load to full load without any additional circuit components. The load range for proposed soft switching technique is analyzed by mathematical approach with equivalent circuits and verified by experiments. The second study describes a boost converter cascaded high frequency link direct dc-ac converter suitable for fuel cell power sources. A new multi-loop control for a boost converter to reduce the low frequency input current harmonics drawn from the fuel cell is proposed, and a new PWM technique for the cycloconverter at the secondary to reject the low order harmonics in the output voltages is presented. The performance of the proposed scheme is verified by the various simulations and experiments, and their trade-offs are described in detail using mathematical evaluation approach. The third study proposes a current-fed high frequency link direct dc-ac converter suitable for residential fuel cell power systems. The high frequency full-bridge inverter at the primary generates sinusoidally PWM modulated current pulses with zero current switching (ZCS), and the cycloconverter at the secondary which consists of only two bidirectional switches and output filter capacitors produces sinusoidally modulated 60Hz split single phase output voltage waveforms with near zero current switching. The active harmonic filter connected to the input terminal compensates the low order input current harmonics drawn from the fuel cell without long-term energy storage devices such as batteries and super capacitors.
APA, Harvard, Vancouver, ISO, and other styles
5

Grant, David. "High power density AC to DC conversion with reduced input current harmonics." Thesis, University of Newcastle upon Tyne, 2015. http://hdl.handle.net/10443/3906.

Full text
Abstract:
This thesis investigates the bene ts and challenges arising from the use of minimal capacitance in AC to DC converters. The purpose of the research is to ultimately improve the power density and power factor of electrical systems connected to the grid. This is carried out in the con- text of a low cost brushless DC drive system operating from an o ine power supply. The work begins with a review of existing applications where it is prac- tical to use a limited amount of DC link capacitance. The vast majority of these have a load which is insensitive to supply power variations at twice the line frequency. Low performance motor drives are found to be the most prevalent, with the inertia of the rotor mitigating the e ect of torque ripple. Further research is carried out on active power factor cor- rection techniques suitable for this application, leading to the conclusion that no appropriate systems exist. A power supply is developed to enable a 24V, 200W brushless motor drive to operate from the mains. The system runs successfully using only 1μF of DC link capacitance, which causes the motor supply volt- age to have 100% ripple. It is noted that whilst this drastically reduces the low frequency input current harmonics, those occurring at the load switching frequency are greatly increased. To combat this, a novel active power factor correction system is proposed using a notch lter to detect the input current error. The common problem of voltage feedback ripple is avoided by eliminating the voltage control loop altogether. The main limitations are identi ed as a high sensitivity to load step changes and variations in line frequency. Despite this, a high power factor is maintained in all operating conditions, as well as compliance with the relevant harmonic standards.
APA, Harvard, Vancouver, ISO, and other styles
6

Zhao, Shishuo. "High Frequency Isolated Power Conversion from Medium Voltage AC to Low Voltage DC." Thesis, Virginia Tech, 2017. http://hdl.handle.net/10919/74969.

Full text
Abstract:
Modern data center power architecture developing trend is analyzed, efficiency improvement method is also discussed. Literature survey of high frequency isolated power conversion system which is also called solid state transformer is given including application, topology, device and magnetic transformer. Then developing trend of this research area is clearly shown following by research target. State of art wide band gap device including silicon carbide (SiC) and gallium nitride (GaN) devices are characterized and compared, final selection is made based on comparison result. Mostly used high frequency high power DC/DC converter topology dual active bridge (DAB) is introduced and compared with novel CLLC resonant converter in terms of switching loss and conduction loss point of view. CLLC holds ZVS capability over all load range and smaller turn off current value. This is beneficial for high frequency operation and taken as our candidate. Device loss breakdown of CLLC converter is also given in the end. Medium voltage high frequency transformer is the key element in terms of insulation safety, power density and efficiency. Firstly, two mostly used transformer structures are compared. Then transformer insulation requirement is referred for 4160 V application according to IEEE standard. Solid insulation material are also compared and selected. Material thickness and insulation distance are also determined. Insulation capability is preliminary verified in FEA electric field simulation. Thirdly two transformer magnetic loss model are introduced including core loss model and litz wire winding loss model. Transformer turn number is determined based on core loss and winding loss trade-off. Different core loss density and working frequency impact is carefully analyzed. Different materials show their best performance among different frequency range. Transformer prototype is developed following designed parameter. We test the developed 15 kW 500 kHz transformer under 4160 V dry type transformer IEEE Std. C57.12.01 standard, including basic lightning test, applied voltage test, partial discharge test. 500 kHz 15 kW CLLC converter gate drive is our design challenge in terms of symmetry propagation delay, cross talk phenomenon elimination and shoot through protection. Gate drive IC is carefully selected to achieve symmetrical propagation delay and high common mode dv/dt immunity. Zero turn off resistor is achieved with minimized gate loop inductance to prevent cross talk phenomenon. Desaturation protection is also employed to provide shoot through protection. Finally 15 kW 500 kHz CLLC resonant converter is developed based on 4160V 500 kHz transformer and tested up to full power level with 98% peak efficiency.
Master of Science
APA, Harvard, Vancouver, ISO, and other styles
7

Rahim, Nasrudin Abd. "Closed-loop control of a current-mode AC/DC buck converter in 4 quadrant P-Q operation." Thesis, Heriot-Watt University, 1995. http://hdl.handle.net/10399/1342.

Full text
APA, Harvard, Vancouver, ISO, and other styles
8

Koran, Ahmed Mohammed. "Photovoltaic Source Simulators for Solar Power Conditioning Systems: Design Optimization, Modeling, and Control." Diss., Virginia Tech, 2013. http://hdl.handle.net/10919/23681.

Full text
Abstract:
This dissertation presents various systematic design techniques for photovoltaic (PV) source simulators to serve as a convenient tool for the dynamic performance evaluation of solar power conditioning systems and their maximum power point tracking algorithms. A well-designed PV source simulator should accurately emulate the static and the dynamic characteristic of actual PV generator. Four major design features should be adopted in any PV source simulator: (i) high power-stage efficiency, (ii) fast transient response-time, (iii) output impedance matching with actual PV generator, and (iv) precise reference generation technique. Throughout this research, two different PV source simulator systems are designed, modeled, and experimentally verified. The design of the first system focuses mainly on creating new reference generation techniques where the PV equivalent circuit is used to precisely generate the current-voltage reference curves. A novel technique is proposed and implemented with analog components to simplify the reference signal generator and to avoid computation time delays in digital controllers. A two-stage LC output filter is implemented with the switching power-stage to push the resonant frequency higher and thus allowing a higher control-loop bandwidth design while keeping the same switching ripple attenuation as in the conventional one-stage LC output filter. With typical control techniques, the output impedance of the proposed simulator did not  
match the closed-loop output impedance of actual PV generator due to the double resonant peaks of the two-stage LC output filter. Design procedures for both control and power-stage circuits are explained. Experimental results verify the steady-state and transient performance of the proposed PV source simulator at around 2.7 kW output.
The design concept of the first simulator system is enhanced with a new type of PV source simulator that incorporates the advantages of both analog and digital based simulators. This simulator is characterized with high power-stage efficiency and fast transient response-time. The proposed system includes a novel three-phase ac-dc dual boost rectifier cascaded with a three-phase dc-dc interleaved buck converter. The selected power-stage topology is highly reliable and efficient. Moreover, the multi-phase dc-dc converter helps improve system transient response-time though producing low output ripple, which makes it adequate for PV source simulators.
The simulator circuitry emulates precisely the static and the dynamic characteristic of actual PV generator under different environmental conditions including different irradiance and temperature levels. Additionally, the system allows for the creation of the partial shading effect on PV characteristic. This dissertation investigates the dynamic performance of commercial and non-commercial solar power conditioning systems using the proposed simulator in steady-state and transient conditions. Closed-loop output impedance of the proposed simulator is verified at different operating conditions. The impedance profile --magnitude and phase- matches the output impedance of actual PV generator closely. Mathematical modeling and experimental validation of the proposed system is thoroughly presented based on a 2.0 kW hardware prototype. The proposed simulator efficiency including the active-front-end rectifier and the converter stages at the maximum power point is 96.4%.
Ph. D.
APA, Harvard, Vancouver, ISO, and other styles
9

Steckler, Pierre-Baptiste. "Contribution à la conversion AC/DC en Haute Tension." Thesis, Lyon, 2020. http://www.theses.fr/2020LYSEI075.

Full text
Abstract:
Le courant alternatif (AC) se prêtant bien à la majorité des problématiques de production, de transport et de distribution de l'électricité, on comprend qu'il soit massivement utilisé. Cependant, depuis plus d'un siècle, les bénéfices du courant continu haute tension (HVDC, pour High Voltage Direct Current) pour les longues distances sont bien connus. Aux interfaces, des convertisseurs AC/DC sont requis, leur composition évoluant au fil des avancées technologiques. Après avoir présenté les spécificités du HVDC et les contraintes qu'il introduit sur les convertisseurs AC/DC, ce manuscrit se focalise sur trois topologies : Modular Multilevel Converter (MMC), Alternate Arm Converter (AAC) et Series Bridge Converter (SBC). Elles sont présentées, dimensionnées et analysées en détail, puis comparées de façon quantitative en utilisant des indicateurs de performance originaux. Il en ressort que le MMC et le SBC sont particulièrement intéressants. La méthode de commande conventionnelle du MMC est ensuite présentée et ses propriétés structurelles sont mises en évidence. Une première loi de commande originale est présentée, avec des performances similaires mais une complexité inférieure à l'état de l'art. La seconde est non linéaire, basée sur la théorie de la platitude différentielle, et permet un suivi de puissance très rapide tout en assurant la stabilité exponentielle globale du système. Ces lois de commande sont évaluées en simulation, avec un modèle moyen et un modèle détaillé intégrant 180 sous-modules par bras. La dernière partie concerne le SBC. Après l'avoir modélisé, des résultats concernant une analyse structurelle de la topologie sont présentés ainsi qu'une loi de commande originale. Le rôle fondamental du transformateur pour les convertisseurs à structure série comme le SBC est souligné. Enfin, les performances de la loi de commande proposée sont testées en simulation
As Alternating Current (AC) is well suited for most of the production, transmission, and distribution applications, its massive use is easy to understand. However, for over a century, the benefits of High Voltage Direct Current (HVDC) for long-distance energy transmission are well known. To connect both, AC/DC converters are mandatory, whose nature evolves with technological progress. After the problematic induced by HVDC on AC/DC converters is presented, this manuscript is focused on three topologies: Modular Multilevel Converter (MMC), Alternate Arm Converter (AAC) and Series Bridge Converter (SBC). They are presented, sized, analyzed thoroughly, and compared in quantitative terms, using original key performance indicators. It appears that MMC and SBC are particularly promising. The conventional control method of the MMC is then presented, and its structural properties are highlighted. A first original control law is presented, with similar performances but less complexity than the state-of-the-art. A second control law, non-linear and based on differential flatness theory, is introduced. It allows a very fast power tracking response while ensuring the global exponential stability of the system. These control laws are tested in simulation, using an average model and a detailed model with 180 sub-modules per arm. The last part is dedicated to the SBC. After a modeling step, some results regarding its structural analysis are presented, and an original control law is introduced. The essential role of the transformer for series converters like the SBC is highlighted. Finally, the performance of the proposed control law is assessed in simulation
APA, Harvard, Vancouver, ISO, and other styles
10

Lu, Bing. "Investigation of High-density Integrated Solution for AC/DC Conversion of a Distributed Power System." Diss., Virginia Tech, 2006. http://hdl.handle.net/10919/28128.

Full text
Abstract:
With the development of information technology, power management for telecom and computer applications become a large market for power supply industries. To meet the performance and reliability requirement, distributed power system (DPS) is widely adopted for telecom and computer systems, because of its modularity, maintainability and high reliability. Due to limited space and increasing power consumption, power supplies for telecom and server systems are required to deliver more power with smaller volume. As the key component of DPS system, front-end AC/DC converter is under the pressure of continuously increasing power density. For conventional industry practices, some limitations prevents front-end converter meeting the power density requirement. In this dissertation, different techniques have been investigated to improve power density of front-end AC/DC converters. For PFC stage, at low switching frequency, PFC inductor size is large and limits the power density. Although increasing switching frequency can dramatically reduce PFC inductor size, EMI filter size might be larger at higher switching frequency because of the change of noise spectrum. Since the relationship between EMI filter size and PFC switching frequency is unclear for industry, PFC circuits always operate with switching frequency lower than 150 kHz. Based on the EMI filter design method, together with a simple EMI noise prediction model, relationship between EMI filter corner frequency and PFC switching frequency was revealed. The analysis shows that switching frequency of PFC circuit should be higher than 400 kHz, so that both PFC inductor and EMI filter size can be reduced. Although theoretical analysis and experimental results verify the benefits of high switching frequency PFC, it is essential to find a suitable topology that allows high switching frequency operation while maintains high efficiency. Three PFC topologies, single switch PFC, three-level PFC with range switch and dual Boost PFC, were evaluated with analysis and experiments. By using advanced semiconductor devices, together with proposed control methods, these topologies could achieve high efficiency at high switching frequency. Thus, the benefits of high frequency PFC can be realized. In front-end converter, large holdup time capacitor size is another barrier for power density improvement. To meet the holdup time requirement, bulky holdup time capacitor is normally used to provide energy during holdup time. Holdup time capacitor requirement can be reduced by using wider input voltage range DC/DC converte. Because LLC resonant converter can realized with input voltage range without sacrificing its normal operation efficiency, it becomes an attractive solution for DC/DC stage of front-end converters. Moreover, its small switching loss allows it operating at MHz switching frequency and achieves smaller passive component size. However, lack of design methodology makes the topology difficult to be implemented. An optimal design methodology for LLC resonant converter has been developed based on the analysis on the circuit during normal operation condition and holdup time. The design method is verified by a 1 MHz switching frequency LLC resonant converter with 76W/in3 power density. When front-end converter operates at high switching frequency, negative effects of circuit parasitics become more pronounced. By integrating active devices together with their gate drivers, Active Integrated power electronics module (IPEM) can largely reduce circuit parasitics. Therefore, switching loss and voltage stress on switching devices can be reduced. Moreover, IPEM concept can be extended into passive integration and EMI filter integration By using this power integration technology, power density and circuit performance of front-end converter can be improved, which is verified by theoretical analysis and experimental results.
Ph. D.
APA, Harvard, Vancouver, ISO, and other styles
More sources

Books on the topic "Dc/ac Power Conversion"

1

Séguier, Guy. Power Electronic Converters: DC-AC Conversion. Berlin, Heidelberg: Springer Berlin Heidelberg, 1993.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
2

Seguier, Guy. Power electronic converters: AC-DC conversion. London: North Oxford Academic, 1986.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
3

Séguier, Guy. Power electronic converters: AC-DC conversion. New York: McGraw-Hill, 1986.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
4

Séguier, Guy. Power electronic converters: DC-AC conversion. Berlin: Springer-Verlag, 1993.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
5

Karamat, Asghar. High frequency inverter-transformer-cycloconverter system for DC to AC (3-phase) power conversion. Uxbridge: Brunel University, 1991.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
6

Prohorov, Viktor. Semiconductor converters of electrical energy. ru: INFRA-M Academic Publishing LLC., 2020. http://dx.doi.org/10.12737/1019082.

Full text
Abstract:
The textbook considers the need, principles and methods of mutual conversion of parameters of electric energy at DC and AC for stationary and Autonomous objects. Features of operation of power electronics elements in specific conditions of their continuous high-frequency switching are described. Low-current control systems that provide the necessary logic for the operation of Executive power devices of converters are considered. A large number of specific practical electrical diagrams of electric energy converters are given. It is intended for students studying in the direction of 13.03.02 "electric power and electrical engineering". It can be useful for graduate students and specialists involved in the development and operation of electric power converters.
APA, Harvard, Vancouver, ISO, and other styles
7

Bausière, R. Power electronic converters: DC-DC conversion. Berlin: Springer-Verlag, 1992.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
8

Choi, Byungcho. Pulsewidth Modulated Dc-to-Dc Power Conversion. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2013. http://dx.doi.org/10.1002/9781118772188.

Full text
APA, Harvard, Vancouver, ISO, and other styles
9

Arrillaga, J. AC-DC power systems analysis. London, UK: The Institution of Electrical Engineers, 1998.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
10

Benchaib, Abdelkrim. Advanced Control of AC/DC Power Networks. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2015. http://dx.doi.org/10.1002/9781119135760.

Full text
APA, Harvard, Vancouver, ISO, and other styles
More sources

Book chapters on the topic "Dc/ac Power Conversion"

1

Arrillaga, Jos, Bruce C. Smith, Neville R. Watson, and Alan R. Wood. "AC-DC Conversion-Frequency Domain." In Power System Harmonic Analysis, 133–71. West Sussex, England: John Wiley & Sons, Ltd, 2013. http://dx.doi.org/10.1002/9781118878316.ch5.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

Arrillaga, Jos, Bruce C. Smith, Neville R. Watson, and Alan R. Wood. "AC-DC Conversion-Harmonic Domain." In Power System Harmonic Analysis, 223–40. West Sussex, England: John Wiley & Sons, Ltd, 2013. http://dx.doi.org/10.1002/9781118878316.ch8.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

Ruan, Xinbo, Wu Chen, Tianzhi Fang, Kai Zhuang, Tao Zhang, and Hong Yan. "A General Control Strategy for DC–AC Series–Parallel Power Conversion Systems." In CPSS Power Electronics Series, 107–19. Singapore: Springer Singapore, 2018. http://dx.doi.org/10.1007/978-981-13-2760-5_5.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

Anusha, H., and S. B. Naveen Kumar. "Bidirectional Power Conversion by DC–AC Converter with Active Clamp Circuit." In Lecture Notes in Electrical Engineering, 1283–94. Singapore: Springer Singapore, 2019. http://dx.doi.org/10.1007/978-981-13-5802-9_109.

Full text
APA, Harvard, Vancouver, ISO, and other styles
5

Rafi, Shaik, Simhadri Lakshmi Sirisha, and Ravipati Srikanth. "A Hybrid Power Conversion System Using Three-Phase Single-Stage DC–AC Converter." In Lecture Notes in Electrical Engineering, 243–54. Singapore: Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-15-2256-7_24.

Full text
APA, Harvard, Vancouver, ISO, and other styles
6

Batarseh, Issa, and Ahmad Harb. "dc-ac Inverters." In Power Electronics, 575–661. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-68366-9_9.

Full text
APA, Harvard, Vancouver, ISO, and other styles
7

Dokić, Branko L., and Branko Blanuša. "DC/AC Converters–Inverters." In Power Electronics, 359–94. Cham: Springer International Publishing, 2014. http://dx.doi.org/10.1007/978-3-319-09402-1_6.

Full text
APA, Harvard, Vancouver, ISO, and other styles
8

Dokić, Branko L., and Branko Blanuša. "AC/DC Converters–Rectifiers." In Power Electronics, 395–455. Cham: Springer International Publishing, 2014. http://dx.doi.org/10.1007/978-3-319-09402-1_7.

Full text
APA, Harvard, Vancouver, ISO, and other styles
9

Milano, Federico. "AC/DC Devices." In Power System Modelling and Scripting, 395–412. Berlin, Heidelberg: Springer Berlin Heidelberg, 2010. http://dx.doi.org/10.1007/978-3-642-13669-6_18.

Full text
APA, Harvard, Vancouver, ISO, and other styles
10

Sundareswaran, K. "ac/dc Converters." In Elementary Concepts of Power Electronic Drives, 71–126. Boca Raton : Taylor & Francis, 2019.: CRC Press, 2019. http://dx.doi.org/10.1201/9780429423284-3.

Full text
APA, Harvard, Vancouver, ISO, and other styles

Conference papers on the topic "Dc/ac Power Conversion"

1

"Session 28 AC-DC conversion." In 2008 Twenty-Third Annual IEEE Applied Power Electronics Conference and Exposition. IEEE, 2008. http://dx.doi.org/10.1109/apec.2008.4522675.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

Krishnamurthy, Harish K., and Raja Ayyanar. "Building Block Converter Module for Universal (AC-DC, DC-AC, DC-DC) Fully Modular Power Conversion Architecture." In 2007 IEEE Power Electronics Specialists Conference. IEEE, 2007. http://dx.doi.org/10.1109/pesc.2007.4342035.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

Carbone, R., F. De Rosa, R. Langella, and A. Testa. "A new approach to model AC/DC/AC conversion systems." In Proceedings of Power Engineering Society Summer Meeting. IEEE, 2001. http://dx.doi.org/10.1109/pess.2001.970025.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

Sousa, Reuben P. R., Cursino B. Jacobina, and Luciano M. Barros. "Series connected three-phase AC-DC power converters." In 2017 IEEE Energy Conversion Congress and Exposition (ECCE). IEEE, 2017. http://dx.doi.org/10.1109/ecce.2017.8096520.

Full text
APA, Harvard, Vancouver, ISO, and other styles
5

Chen, Min, Zhen Jia, Jian Sun, and Kamiar Karimi. "AC-DC Converters Modeling for Airborne Power Systems Analysis." In 3rd International Energy Conversion Engineering Conference. Reston, Virigina: American Institute of Aeronautics and Astronautics, 2005. http://dx.doi.org/10.2514/6.2005-5725.

Full text
APA, Harvard, Vancouver, ISO, and other styles
6

Choi, Jaeho, Soo-Cheol Kim, Hyoung-Chul Kim, and Young-Chol Kim. "CRA Based Robust Digital Current Controller for AC/DC PWM Converter." In 2007 Power Conversion Conference - Nagoya. IEEE, 2007. http://dx.doi.org/10.1109/pccon.2007.372947.

Full text
APA, Harvard, Vancouver, ISO, and other styles
7

Ishii, Sadao, Hidenori Hara, Tsuyoshi Higuchi, Tomohiro Kawachi, Katsutoshi Yamanaka, Noritaka Koga, Tsuneo Kume, and Jun-Koo Kang. "Bidirectional dc-ac conversion topology using matrix converter technique." In 2010 International Power Electronics Conference (IPEC - Sapporo). IEEE, 2010. http://dx.doi.org/10.1109/ipec.2010.5543828.

Full text
APA, Harvard, Vancouver, ISO, and other styles
8

Kish, Gregory J., and Peter W. Lehn. "A comparison of modular multilevel energy conversion processes: DC/AC versus DC/DC." In 2014 International Power Electronics Conference (IPEC-Hiroshima 2014 ECCE-ASIA). IEEE, 2014. http://dx.doi.org/10.1109/ipec.2014.6869702.

Full text
APA, Harvard, Vancouver, ISO, and other styles
9

Navarro-Rodriguez, Angel, Pablo Garcia, Ramy Georgious, and Jorge Garcia. "Adaptive active power sharing techniques for DC and AC voltage control in a hybrid DC/AC microgrid." In 2017 IEEE Energy Conversion Congress and Exposition (ECCE). IEEE, 2017. http://dx.doi.org/10.1109/ecce.2017.8095757.

Full text
APA, Harvard, Vancouver, ISO, and other styles
10

Disney, Don, I. L. Yong Park, Wen-Cheng Lin, and Jongjib Kim. "High-voltage IC technologies for AC/DC power conversion." In 2015 IEEE International Conference on Electron Devices and Solid-State Circuits (EDSSC). IEEE, 2015. http://dx.doi.org/10.1109/edssc.2015.7285070.

Full text
APA, Harvard, Vancouver, ISO, and other styles

Reports on the topic "Dc/ac Power Conversion"

1

Mahabir, K., G. Verghese, J. Thottuvelil, and A. Heyman. Linear Models for Large Signal Control of High Power Factor AC-DC Converters. Fort Belvoir, VA: Defense Technical Information Center, November 1989. http://dx.doi.org/10.21236/ada458127.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

Wetz, Jr, and David A. Fundamental Understanding of the Impact High Pulsed Power Loading has on a MicroGrid's DC or AC Bus. Fort Belvoir, VA: Defense Technical Information Center, June 2013. http://dx.doi.org/10.21236/ada586869.

Full text
APA, Harvard, Vancouver, ISO, and other styles
You might also be interested in the extended bibliographies on the topic 'Dc/ac Power Conversion' for particular source types:
Journal articles Dissertations / Theses Books
We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!

To the bibliography