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REFERENCE LINKING PLATFORM OF KOREA S&T JOURNALS
> Journal Vol & Issue
Journal of Power Electronics
Journal Basic Information
Journal DOI :
The Korean Institute of Power Electronics
Editor in Chief :
Volume & Issues
Volume 2, Issue 4 - Oct 2002
Volume 2, Issue 3 - Jul 2002
Volume 2, Issue 2 - Apr 2002
Volume 2, Issue 1 - Jan 2002
Selecting the target year
NSE-Sponsored Faculty Workshops on Teaching of Power Electronics and Electric Drives
Ned Mohan ; Jain, Amit-Kumar ;
Journal of Power Electronics, volume 2, issue 4, 2002, Pages 231~239
This paper describes the restructuring of power electronics and electric drives courses, sponsored by NSF, EPRI, NASA and the local utilities, which has significantly increased student enthusiasm, and the undergraduate enrollment in these courses at the University of Minnesota has tripled since 1997. The developed leaching approaches have been the subject of NSF-sponsored faculty workshops in 1994, 1997, 1998,2002, and 2003. In power electronics, the power-pole based building-block approach unifies analysis and control aspects of all converters. PSpice-based simulations aid in analysis and design, supported by a hardware laboratory. For electric drives, an integrative approach addressing all three aspects of electric drives - machines, power converters and control is being. used. Space vectors, introduced on a physical basis rather than purely mathematical ions, are used fur analysis of ac machines. This leads to a more physical understanding of machine operation and also makes it easier to address control aspects in the advanced course. The lecture materials are supported by a DSP-based laboratory.
A Power Electronics and Drives Curriculum with Project-oriented and Problem-based Learning: A Dynamic Teaching Approach for the Future
Blaabjerg, Frede ;
Journal of Power Electronics, volume 2, issue 4, 2002, Pages 240~249
Power electronics Is an emerging technology New applications are added every year as well as the power handling capabilities are steadily increasing. The demands to the education of engineers in this field are also increasing. Basically the content of the curriculum should be more expanded without extra study time. This paper present a teaching approach which makes it possible very fast for the student to get in-deplh skills in this important area which is the problem-oriented and project-based learning. The trend and application of power electronics are illustrated. The necessary skills for power electronic engineers are outlined followed up by a discussion on how problem-oriented and project-based learning are implemented. A complete curriculum at Aalborg University is presented where different power electronics related projects at different study levels are carried out.
A Novel Interactive Power Electronics Seminar (iPES) Developed at the Swiss Federal Institute of Technology (ETH) Zurich
Drofenik, Uwe ; Kolar, Johann W. ;
Journal of Power Electronics, volume 2, issue 4, 2002, Pages 250~257
This paper introduces the Interactive Power Electronics Seminar - iPES - a new software package for teaching of fundamentals of power electronic circuits and systems. iPES is constituted by HTML text with Java applets for interactive animation, circuit design and simulation and visualization of electromagnetic fields and thermal issues in power electronics. It does comprise an easy-to-use self-explaining graphical user interface. The software does need just a standard web-browser, i.e. no installations are required. iPES can be accessed via the World Wide Web or from a CD-ROM in a stand-alone PC by students and professionals. Due to the underlying software technology iPES is very flexible and could be used for on-line learning and could easily be integrated into an e-learning platform. The aim of this paper Is to give an introduction to the iPES-project and to show the different areas covered. The e- learning software is available at no costs at
in English, German, Japanese, Korean, Chinese and Spanish. The project is still under development and the web page is updated in about 4 weeks intervals.
Interactive Teaching and Self-Study Tools for Power Electronics
Ertugrul, Nesimi ;
Journal of Power Electronics, volume 2, issue 4, 2002, Pages 258~267
This paper presents the principal features of the software modules developed to provide an interactive teaching/learning environment in Power Electronics that can be used by educators and students. The software modules utilize an object oriented programming LabVIEW that provides a highly flexible graphical user interface. The paper highlights the principal features the software components and illustrates a number of highly interactive graphical user interfaces of selected Power Electronics circuits and systems.
Education of Power Electronics in Japan
Matsui, Mikihiko ; Ueda, Akiteru ; Oguch, Kuniomi ;
Journal of Power Electronics, volume 2, issue 4, 2002, Pages 268~277
Power electronics is an interdisciplinary area that is interstitial to all of the major disciplines of electrical engineering including power, electronics and control. Today, the covering field of power electronics has more widely spread out with the help of ever evolving microelectronics and computer science. Whereas, in Japan the tendency is becoming remarkable nowadays that science, especially "mathematics" and "hardware work", are falling into disfavor with the young people. For these reasons, it has become a very important problem to find out "what are the truest essentials of power electronics\ulcorner" and "How to give students incentives to learn power electronics\ulcorner " from an educational point of view In under-graduate and graduate courses in universities. On the other hand, the power electronics engineers in companies are always required to comply with the ever changing trend of global and open market. However, it takes long time to cultivate their skills. Against the background, "The Cooperative Research Committee on Education of Power Electronics" was established in the IEEJ Industry Applications Society during 2000-2001. The present status of the power electronics education in Japan is surveyed in this paper, and some problems with remedy are pointed out based on the discussions performed in the committee.sed on the discussions performed in the committee.
High-Frequency Forward Transformer Linked PWM DC-DC Power Converter with Zero Voltage Switching and Zero Current Switching Bridge Legs
Moisseev, Serguei ; Hamada, Satoshi ; Ishitobi, Manabu ; Hiraki, Eiji ; Nakaoka, Mutsuo ;
Journal of Power Electronics, volume 2, issue 4, 2002, Pages 278~287
A novel zero-voltage and zero-current switching PWM DC-DC converter with lowered conduction losses is presented in this paper. A new double two-switch forward high frequency transformer type soft-switching converter topology is developed to minimize circulating currents occurs during freewheeling period. This converter has advantages as less number of the components, simple control principle under constant operation frequency, free of transformer Imbalance effect. The principle of operation is illustrated with steady-state analysis. Moreover, the effectiveness of the proposed converter topology is verified by implementation of a 500w-100kHz breadboard using IGBTs.
Three Phase Voltage Source Soft Switching Inverter with High Frequency Pulse Current Transformers
Inaba, Claudio Y. ; Hiraki, Eiji ; Nakaoka, Mutsuo ;
Journal of Power Electronics, volume 2, issue 4, 2002, Pages 288~296
In this paper, a high frequency transformer - assisted auxiliary active resonant commutated snubber (HFTA-ARCS) for voltage source soft switching pulse width modulated power conversion circuits is presented. A three phase voltage source type soft switching inverter incorporating HFTA-ARCS circuits in its three bridge legs can reduce current rating of auxiliary active power switches and has sensorless simplified control scheme which any specified boost current management is not required for soft switching. Its operation principle and digital control scheme are described and a practical design method of circuit parameters on this HFTA-ARCS circuit is also introduced on the basis of computer simulation. Moreover, this space voltage vector modulated soft switching inverter system with DSP-based digital control scheme Is discussed and its effectiveness is proved on the basis of performance evaluations. The operating performances of this inverter system are also compared with those of conventional three-phase hard switching inverter under practical conditions of specified parameters.
A Study on Solution against Core Saturation Instability at HVDC Converter
Yang, Byeong-Mo ; Kim, Chan-Ki ; Koh, Bong-Eun ; Moon, Young-Hyun ;
Journal of Power Electronics, volume 2, issue 4, 2002, Pages 297~304
The paper identifies a severe form of core saturation instability in a DC/AC interaction system. It then seeks solutions to the problem by HVDC control means. This is achieved by a proper design of the Voltage Dependent Current Order Limiter (VDCOL), the Current Regulate. and Timing Pulse generator. Supplementary control loops have also been introduced to result in a satisfactory performance as compared to that obtained one with the use of uncharacteristic harmonic filter on the AC side. All the options have been demonstrated through recovery performance of the DC link in response to both 1-phase and 3-phase 5 cycle faults on both rectifier and inverter commutating buses.
Control of Variable Reluctance Motors: A Comparison between Classical and Lyapunov-Based Fuzzy Schemes
Filizadeh, S. ; Safavian, L.S. ; Emadi, A. ;
Journal of Power Electronics, volume 2, issue 4, 2002, Pages 305~311
In this paper, two approaches for designing tracking controllers for a variable reluctance motor (VRM), namely the Lyapunov-based fuzzy approach and the classical approach, are compared. The nonlinear model of a VRM is first addressed. The two control schemes are introduced afterwards, and then applied to obtain tracking controllers. Simulation results of a sample case, to which the methods are applied, are also presented. Comparison of the methods based on the results obtained concludes the paper.
A New PWM DC/DC Converter with Isolated Dual Output Using Single Power Stage
Lee, Dong-Yun ; Hyun, Dong-Seok ; Ick Choy ;
Journal of Power Electronics, volume 2, issue 4, 2002, Pages 312~324
This paper presents a new PWM DC/DC converter with dual output power using single power stage, which has the isolation characteristics between each dual output. The proposed converter topology consists of two switches (
) and only single secondary winding. Therefore, the proposed converter has better advantages of not only low cost and small size but also high power density because of using minimum components and devices compared with conventional methods which use multi winding transformers or several converters. The operating principle of the proposed converter topology, which includes the conventional auxiliary ZVT (Zero-Voltage-Transition) circuit to implement soft switching of the main switch, is illustrated in detail and the validity of the proposed converter is verified through several simulated and experimental results.