Investigation of Multiphase Power Converter Using Integrated Coupled Inductor Regarding Electric Vehicle Application PDF Download

Author: Jie Liu
Publisher:
ISBN:
Category :
Languages : de
Pages : 0

View

Book Description

Author: Kleeb, Thiemo
Publisher: kassel university press GmbH
ISBN: 3737602263
Category :
Languages : en
Pages : 276

View

Book Description
The functional integration of magnetic components is a known technique in order to enable high power densities for power electronic converters. Magnetic components are mandatory in many power electronic converters and many topologies demand more than one magnetic component. Therefore, the functional integration of magnetic components allows realising several magnetic functions within one component. This technique promises lower total size, losses and costs without switching frequency increase. There are several examples in the literature for coupled inductors, common-differential-mode chokes or transformer-inductor components. One centralised question of this work is to explore the performance advantage of functionally integrated magnetic components in comparison to discrete components. Many applications allow the introduction of simple magnetic structures and standard cores or simple modifications of these (flux bypasses) in order to enable the required component behaviour. The design guidelines introduced in this work enable the design of functional integrated magnetic components with limited effort and, therefore, the application of components which enable superior performance regarding size and power loss for the applications.

Author: Md. Rabiul Islam
Publisher: CRC Press
ISBN: 1000374092
Category : Technology & Engineering
Languages : en
Pages : 419

View

Book Description
This book covers advancements of power electronic converters and their control techniques for grid integration of large-scale renewable energy sources and electrical vehicles. Major emphasis is on transformer-less direct grid integration, bidirectional power transfer, compensation of grid power quality issues, DC system protection and grounding, interaction in mixed AC/DC systems, AC and DC system stability, design of high-frequency high power density systems with advanced soft magnetic materials, modeling and simulation of mixed AC/DC systems, switching strategies for enhanced efficiency, and protection and reliability for sustainable grid integration. This book is an invaluable resource for professionals active in the field of renewable energy and power conversion. Md. Rabiul Islam received his PhD from the University of Technology Sydney (UTS), Australia. He was appointed as a Lecturer at Rajshahi University of Engineering & Technology (RUET) in 2005 and promoted to full-term Professor in 2017. In early 2018, he joined the School of Electrical, Computer, and Telecommunications Engineering, University of Wollongong, Australia. He is a Senior Member of IEEE. His research interests include the fields of power electronic converters, renewable energy technologies, power quality, electrical machines, electric vehicles, and smart grids. He has authored or coauthored more than 200 publications including 50 IEEE Transactions/IEEE Journal papers. He has been serving as an editor for IEEE Transactions on Energy Conversion and IEEE Power Engineering Letters, and associate editor for IEEE Access. Md. Rakibuzzaman Shah is a Senior Lecturer with the School of Engineering, Information Technology and Physical Science at Federation University Australia. He has worked and consulted with distribution network operators and transmission system operators on individual projects and has done collaborative work on a large number of projects (EPSRC project on multi-terminal HVDC, Scottish and Southern Energy multi-infeed HVDC) - primarily on the dynamic impact of integrating new technologies and power electronics into large systems. He is an active member of the IEEE and CIGRE. He has more than 70 international publications and has spoken at the leading power system conferences around the world. His research interests include future power grids (i.e., renewable energy integration, wide-area control), asynchronous grid connection through VSC-HVDC, application of data mining in power system, distribution system energy management, and low carbon energy systems. Mohd. Hasan Ali is currently an Associate Professor with the Electrical and Computer Engineering Department at the University of Memphis, USA, where he leads the Electric Power and Energy Systems (EPES) Laboratory. His research interests include advanced power systems, smart-grid and microgrid systems, renewable energy systems, and cybersecurity issues in modern power grids. Dr. Ali has more than 190 publications, including 2 books, 4 book chapters, 2 patents, 60 top ranked journal papers, 96 peer-reviewed international conference papers, and 20 national conference papers. He serves as the editor of the IEEE Transactions on Sustainable Energy and IET-Generation, Transmission and Distribution (GTD) journal. Dr. Ali is a Senior Member of the IEEE Power and Energy Society (PES). He is also the Chair of the PES of the IEEE Memphis Section.

Author: Peter Zacharias
Publisher: Springer Nature
ISBN: 3658372060
Category : Technology & Engineering
Languages : en
Pages : 817

View

Book Description
The book deals with methods for the description and design of electromagnetic components. Both linear and nonlinear components are covered. For electrical simulations the necessary equivalent circuit diagrams are derived and a general methodology is developed. Possible influences on properties via material selection, winding design and premagnetisation of sections are treated. Measurement characterization, modeling, possible errors and model limits are dealt with extensively. In the last chapter examples are discussed.

Author: L. Ashok Kumar
Publisher: CRC Press
ISBN: 1000337537
Category : Technology & Engineering
Languages : en
Pages : 248

View

Book Description
Power Converters for Electric Vehicles gives an overview, topology, design, and simulation of different types of converters used in electric vehicles (EV). It covers a wide range of topics ranging from the fundamentals of EV, Hybrid EV and its stepwise approach, simulation of the proposed converters for real-time applications and corresponding experimental results, performance improvement paradigms, and overall analysis. Drawing upon the need for novel converter topologies, this book provides the complete solution for the power converters for EV applications along with simulation exercises and experimental results. It explains the need for power electronics in the improvement of performance in EV. This book: Presents exclusive information on the power electronics of EV including traction drives. Provides step-by-step procedure for converter design. Discusses various topologies having different isolated and non-isolated converters. Describes control circuit design including renewable energy systems and electrical drives. Includes practical case studies incorporated with simulation and experimental results. Power Converters for Electric Vehicles will provide researchers and graduate students in Power Electronics, Electric Drives, Vehicle Engineering a useful resource for stimulating their efforts in this important field of the search for renewable technologies.

Author: Abdulrhman Alshaabani
Publisher:
ISBN:
Category : Electronic dissertations
Languages : en
Pages : 154

View

Book Description
Power converters have an important role in modern electric and electronic systems due to different voltage and power level requirements. Magnetic components are considered to be essential elements of the power converters. Storing the energy, filtering the signal, and transferring the energy are the main tasks of the magnetic components in the power converters. With developing the technology of power switches, the power converter can be operated at high frequencies. However, the magnetic components are suffering from their parasitic capacitance at high frequencies. Modeling the parasitic capacitance of the magnetic components is crucial to design power converters at high frequency. To date, the researches that have been conducted to modeling the parasitic capacitance have mainly targeted the low power applications with very high frequencies and high power with multi-layer transformers. Consequently, there remains a blank in the body of knowledge regarding modeling the parasitic capacitance of a single-layer inductor with a magnetic core at medium power. The relation between the number of turns and the parasitic capacitance of the single-layer inductors with the magnetic core should be considered. Moreover, improving the magnetic components by reducing parasitic capacitance is essential. By using the technique of reducing the parasitic capacitance, the resonant frequency of the magnetic components can be shifted to a higher frequency besides improving the impedance of the inductor. Therefore, this dissertation contributes in four main parts: (1) Modeling the parasitic capacitance of a single-layer inductor with a magnetic core. (2) Reducing the parasitic capacitance using the technique of magnetic coupling. (3) Selecting the appropriate range of high operating frequency for power converter applications. (4) Estimating the parasitic capacitance of interleaved coupled two-phase inductors.For the first part, a new approach to determining the total parasitic capacitance of a single-layer inductor with the magnetic core at a medium frequency range that is below the first resonant frequency is presented in this research. The proposed analytical approach can obtain the parasitic capacitance between the winding and core based on the physical structure of the inductor. The analytical approach depends on approximating the rod wire shape to a square shape. The total equivalent parasitic capacitance is derived. The results are verified by finite element analysis and experimental measurements using an impedance network analyzer.The second part of this research presents a technique for improving the performance of an inductor at high frequencies through mitigating effects caused by the parasitic capacitance. This technique adds a small capacitor to the coupled windings of the inductor to reduce the parasitic capacitance of the inductor. The relationship between the parasitic capacitance, magnetic coupling coefficient, and the small capacitor is introduced. The method to size the reduction capacitor is detailed in this research. The results of applying this technique show an improvement in the inductance impedance by 40 dB and shifting the resonant frequency to a higher frequency when ? = 0.97. The experimental results validated the effectiveness of the proposed technique. Moreover, a new methodology to properly select the highest operating frequency for the magnetic components in power electronics devices is presented in this research. Several parameters of the magnetic components such as the resonant frequency and the losses of the magnetic core are taken under consideration. The results of this methodology prove the maintaining the efficiency with reducing the volume of the magnetic core by 70%.Finally, the parasitic capacitance of the interleaved two-phase coupled-inductors is introduced in this research. Besides estimating the parasitic capacitance, the method of determining the size of the interleaved two-phase coupled inductors of boost converter is explained. The result shows the reduction of the size of the two-phase coupled inductors by using the proposed selecting suitable high operating frequency methodology. Moreover, the efficiency of the interleaved coupled inductors boost converter is maintained with reducing the volume by 60% and increasing the operating frequency by doubling the frequency.

Author: Shailendra Kumar
Publisher: Springer Nature
ISBN: 9811977283
Category : Technology & Engineering
Languages : en
Pages : 296

View

Book Description
This book presents select proceedings of the Electric Power and Renewable Energy Conference 2022 (EPREC-2022). It provides rigorous discussions, case studies, and recent developments in the emerging areas of power electronics, especially power inverters and converter, electrical drives, regulated power supplies, operation of FACTS and HVDC, etc. The readers would be benefited from enhancing their knowledge and skills in these domain areas. The book is a valuable reference for beginners, researchers, and professionals interested in advancements in power electronics and drives.

Author: Lai Shih Chieh
Publisher:
ISBN:
Category :
Languages : en
Pages :

View

Book Description

Author: Ali Emadi
Publisher: CRC Press
ISBN: 135183679X
Category : Technology & Engineering
Languages : en
Pages : 909

View

Book Description
Initially, the only electric loads encountered in an automobile were for lighting and the starter motor. Today, demands on performance, safety, emissions, comfort, convenience, entertainment, and communications have seen the working-in of seemingly innumerable advanced electronic devices. Consequently, vehicle electric systems require larger capacities and more complex configurations to deal with these demands. Covering applications in conventional, hybrid-electric, and electric vehicles, the Handbook of Automotive Power Electronics and Motor Drives provides a comprehensive reference for automotive electrical systems. This authoritative handbook features contributions from an outstanding international panel of experts from industry and academia, highlighting existing and emerging technologies. Divided into five parts, the Handbook of Automotive Power Electronics and Motor Drives offers an overview of automotive power systems, discusses semiconductor devices, sensors, and other components, explains different power electronic converters, examines electric machines and associated drives, and details various advanced electrical loads as well as battery technology for automobile applications. As we seek to answer the call for safer, more efficient, and lower-emission vehicles from regulators and consumer insistence on better performance, comfort, and entertainment, the technologies outlined in this book are vital for engineering advanced vehicles that will satisfy these criteria.

Author: Chenhui Zhang
Publisher:
ISBN:
Category : Electric current converters
Languages : en
Pages : 74

View

Book Description
To meet the continuously growing energy demand for both industrial and civilian use, parallel-connected voltage source converters (VSCs) using interleaved switching techniques have become increasingly popular over the single module VSC for a variety of applications: electric vehicles, aerospace, and renewable energy systems. With poorly designed switching patterns, the inductors required to connect paralleled converters together can have a size and weight higher than they need to be. The switching patterns used in parallel modules can also produce low-quality pulse-width-modulated (PWM) voltage outputs, which adversely affect the system output currents and result in higher than necessary power losses in the output filter inductors and machine loads. Pulse-width-modulated (PWM) switching patterns are presented for parallel-connected VSCs that are used to reduce the size and weight of the converter output inductors. These inductors are magnetically coupled to reduce the flux in their magnetic cores, resulting in a much smaller size and weight. The winding connections of these cores are magnetically cross-coupled. This results in a large inductance between the converter outputs, reducing circulating currents that increase the converter power losses. Conversely, the cross-coupled windings also result in a very low series out impedance, hence lowering fundamental voltage drops and increasing the voltage reaching the load. Switching patterns, using interleaved carriers and either: (a) carrier swapping techniques; or (b) reference signal modification, are used to lower the output voltage harmonics, hence improve the quality of the output multi-level line voltages in 3-phase systems. For the switching patterns described, the flux in the coupled inductor cores can experience rapid jumps that increase the peak flux experienced in the cores. The most significant contribution of this thesis is the modified switching patterns presented that suppress these flux jumps, referred to as flux jump compensation techniques. Controlled predictable flux patterns allow the core cross-sectional area to be significantly reduced with the core size and weight. In addition to modified PWM control using continuous switching, discontinuous switching patterns are presented (DPWM), which can be used to reduce the converter average switching frequency and significantly reducing the converter switching losses. The inverter switching patterns in DPWM are held high or low for two 60o periods in a fundamental cycle. The transitions from no switching to continuous switching cause flux jumps in the cores. The reference signals are modified to provide flux jump compensation for these transitions as well as for carrier swapping. The modified DPWM control lowers the peak flux in the CI core, hence reduces the core size and weight. The effectiveness of the various proposed PWM methods described are verified using both simulations and experimental results for a 3-phase parallel-connected coupled inductor converter prototype.