T16 Three- Phase Power Factor Correction Technology
Full day (9 a.m. to 4 p.m.)
Location: Seggau
including sightseeing: Seggau and wine yard
Power factor correction is becoming a mandatory requirement in various applications involving ac/dc power processing. This is reflected by the different standards and regulations limiting the input harmonic current contents of both single-phase and three-phase equipment, such as IEC 1000-3-4, IEC 61000-3-2, IEEE 519, ISO-1540, and DO-160, which are in effect or under development. Complying with these regulations requires the use of power factor correction (PFC) circuits as front-end converter to replace traditional rectification circuits.
This tutorial focuses on three-phase PFC circuits and control techniques. It starts with an introduction of power factor correction concepts and an overview of different regulations that govern the design of PFC products. This is followed by an overview and classification of most three-phase PFC converter topologies developed in the past few decades. Topologies in each class then are discussed in greater detail in subsequent sections. In addition, the tutorial also provides an brief coverage of three-phase system modeling, analysis, and control using space vector and averaging techniques. Practical application issues, such as start-up and abnormal operation, input filter design, parallel operation, and operation with unbalanced line, will also be discussed. Following is an outline of topics covered by the tutorial:
- Introduction and Topology Overview
- Improving Diode-Bridge Rectifiers
- Utilization of Single-Phase PFC Modules
- "Natural Rectifiers"
- Space Vector Methods for PWM Rectifiers
- PWM Rectifiers
- Transformer-Isolated Topologies
- Bi-Directional Topologies
- Design Considerations and Applications
Johann W. Kolar received his Ph.D. degree (summa cum laude) in electrical engineering from the Technical University Vienna, Austria. Since Feb. 1, 2001 he is the Head of the Power Electronics and Electrometrology Laboratory at the Swiss Federal Institute of Technology (ETH) Zurich. His present research interests include high power factor rectifier systems, control optimization of three-phase inverters, modeling and simulation of power electronics systems and the practical realization of ultra compact converter modules. He is the inventor of numerous novel PFC converter topologies, including the VIENNA Rectifiers, and has acted as a consultant to several companies worldwide. He is the author of 140 scientific papers and patents and he is serving as Associate Editor of the Transaction on Industrial Electronics since 1997. Prof. Kolar has presented seminars on three-phase PFC techniques at several international conferences, including the IEEE PESC’00.
Jian Sun
received his Ph.D. degree from the University of Paderborn,
Germany, in 1995. He worked as a Post-Doctoral Fellow at the
School of Electrical and Computer Engineering at Georgia
Institute of Technology from 1996 to 1997, where he taught three
undergraduate courses on electro-mechanical energy conversion in
addition to conducting basic research DC/DC converter. He joined
the Advanced Technology Center of Rockwell Collins in 1997, where
he is currently a Principal Engineer and the Leader for Power
Conversion Research. His expertise and research interests are in
the areas of power converter topologies, soft-switching
techniques, system modeling and analysis, magnetic components,
and high density, high efficiency DC/DC and AC/DC converters. He
is an active contributor to the field of power electronics, with
over 30 technical papers published in the past ten years.