Soft switching four quadrant DC-link inverter generating sinusoidal waveforms

A soft switching power converter topology for high frequency (HF) AC/DC/AC power conversion which synthesizes the sinusoidal output voltages and results in a considerable reduction of acoustic noise is proposed. The converter achieves soft switching without increasing the voltage or current ratings of devices and has the capability of HF and four quadrant operation. HF operation by soft switching provides several advantages such as high power density, low electromagnetic interference and high dynamic performance. The voltage stresses and the current stresses in this converter are limited to the supply voltage and the link current by the operation of a current free-wheeling circuit, and thus the VA ratings of devices are reduced to those of the hard-switched inverters. Simulation results are presented to verify the operational principle.<<ETX>>

[1]  Gyu-Hyeong Cho,et al.  A current regulated pulse width modulation method with new series resonant inverter , 1989, Conference Record of the IEEE Industry Applications Society Annual Meeting,.

[2]  G. Venkataramanan,et al.  Pulse width modulation with resonant DC link converters , 1990, Conference Record of the 1990 IEEE Industry Applications Society Annual Meeting.

[3]  G. H. Cho,et al.  New bilateral zero voltage switching AC/AC converter using high frequency partial-resonant link , 1990, [Proceedings] IECON '90: 16th Annual Conference of IEEE Industrial Electronics Society.

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

[5]  T.A. Lipo,et al.  High frequency series resonant DC link power conversion , 1988, Conference Record of the 1988 IEEE Industry Applications Society Annual Meeting.

[6]  Deepak Divan,et al.  The Resonant DC Link Converter--A New Concept in Static Power Conversion , 1986, 1986 Annual Meeting Industry Applications Society.

[7]  P. Caldeira,et al.  Current pulse control of high frequency series resonant DC link power converter , 1989, Conference Record of the IEEE Industry Applications Society Annual Meeting,.

[8]  Deepak Divan,et al.  Zero-switching-loss inverters for high-power applications , 1989 .

[9]  Thomas A. Lipo,et al.  Field oriented control of an induction machine in a high frequency link power system , 1988, PESC '88 Record., 19th Annual IEEE Power Electronics Specialists Conference.

[10]  Byeong Ok Woo,et al.  Soft switching AC/DC/AC converter with current freewheeling circuit , 1991, PESC '91 Record 22nd Annual IEEE Power Electronics Specialists Conference.

[11]  B.K. Bose,et al.  High frequency quasi-resonant DC voltage notching inverter for AC motor drives , 1990, Conference Record of the 1990 IEEE Industry Applications Society Annual Meeting.