A novel ZVS-ZCS inverter with auxiliary resonant snubber using pulse current feedback transformer

In order to enhance the performance of ARCPI (auxiliary resonant-commutated pole inverter), this paper proposes a novel ZVS-ZCS inverter with auxiliary resonant snubber using pulse current feedback transformer to solve the problem such as extra losses from auxiliary circuit, variable commutation duration, and poor reliability, which are common in existing ARCPIs. In this novel ARCPI, the application of commutation forcing voltage greater than half value of DC link voltage, fixed commutation duration, and protection for auxiliary switches furthest enhances the performance, and also extends its application. By the analysis, simulation, and experimentation, this new ARCPI is proved reasonable for use in high reliability application, especially in DFACTS.

[1]  Ivo Barbi,et al.  Analysis, designing, and experimentation of a transformer-assisted PWM zero-voltage switching pole inverter , 2000 .

[2]  Mehrdad Ehsani,et al.  A review of soft-switched DC-AC converters , 1996, IAS '96. Conference Record of the 1996 IEEE Industry Applications Conference Thirty-First IAS Annual Meeting.

[3]  H. J. Beukes,et al.  Integrated active snubber for high power IGBT modules , 1997, Proceedings of APEC 97 - Applied Power Electronics Conference.

[4]  A. Elasser,et al.  Soft switching active snubbers for dc/ac converters , 1995 .

[5]  Thierry Meynard,et al.  Switching faults and safe control of an ARCP multicell flying capacitor inverter , 2003 .

[6]  M. Nakaoka,et al.  Auxiliary resonant commutated soft-switching inverter with bidirectional active switches and voltage clamping diodes , 2001, Conference Record of the 2001 IEEE Industry Applications Conference. 36th IAS Annual Meeting (Cat. No.01CH37248).