A 100 kW high-performance PWM rectifier with a ZCT soft-switching technique

This paper presents a 100 kW three-phase pulse-width modulated (PWM) boost rectifier that serves as the front-end power source for a DC distributed power system. A zero current transition (ZCT) soft-switching technique is applied to achieve greater performance in this high-power converter. This ZCT soft-switching technique assists the turn-on as well as the turn-off of the main and auxiliary insulated gate bipolar transistor (IGBT) switches. An issue about the implementation of the ZCT soft-switching technique in three-phase applications is discussed. A space vector modulation (SVM) scheme suitable for high power applications with high performance is identified. Experimental results demonstrate that high performance is achieved, in terms of wide control bandwidth, low total harmonic distortion (THD), unity power factor and high efficiency.

[1]  D. G. Holmes,et al.  The significance of zero space vector placement for carrier based PWM schemes , 1995, IAS '95. Conference Record of the 1995 IEEE Industry Applications Conference Thirtieth IAS Annual Meeting.

[2]  D. Boroyevich,et al.  Small-signal modeling and control of three-phase PWM converters , 1994, Proceedings of 1994 IEEE Industry Applications Society Annual Meeting.

[3]  K. Taniguchi,et al.  High-performance soft-switched three-phase converter with sinusoidal input current and unity power factor , 1997, Proceedings of APEC 97 - Applied Power Electronics Conference.

[4]  Dushan Boroyevich,et al.  Improved zero-current transition converters for high power applications , 1996, IAS '96. Conference Record of the 1996 IEEE Industry Applications Conference Thirty-First IAS Annual Meeting.

[5]  Guihao Hau,et al.  Novel Zero Voltage-Transition PWM Converter , 1992 .

[6]  D. Borojevic,et al.  Space vector modulated, zero-voltage transition three-phase to DC bidirectional converter , 1994, Proceedings of 1994 Power Electronics Specialist Conference - PESC'94.

[7]  Fred C. Lee,et al.  Investigation of soft-switching techniques for Power Electronics Building Blocks (PEBB) , 1998, APEC '98 Thirteenth Annual Applied Power Electronics Conference and Exposition.

[8]  S. R. Bowes,et al.  Suboptimal switching strategies for microprocessor-controlled PWM inverter drives , 1985 .

[9]  Fred C. Lee,et al.  Novel zero-current-transition PWM converters , 1993 .

[10]  R.W. De Doncker,et al.  The auxiliary resonant commutated pole converter , 1990, Conference Record of the 1990 IEEE Industry Applications Society Annual Meeting.

[11]  Dushan Boroyevich,et al.  Implementation of a ZCT soft switching technique in a 100 kW PEBB based three-phase PFC rectifier , 1999, 30th Annual IEEE Power Electronics Specialists Conference. Record. (Cat. No.99CH36321).

[12]  Dushan Boroyevich,et al.  Elimination of low-frequency harmonics caused by PWM in a three-phase soft-switched boost rectifier , 2000, Conference Record of the 2000 IEEE Industry Applications Conference. Thirty-Fifth IAS Annual Meeting and World Conference on Industrial Applications of Electrical Energy (Cat. No.00CH37129).