A novel soft-switched PWM current source inverter with voltage clamped circuit

This paper develops a new series resonant (current resonant) DC link inverter with a voltage clamped circuit. The proposed circuit has a fixed pulse frequency operation. The fixed pulse frequency at 20-50 kHz enables the system to work without audible noise, and to involve the much smaller-sized DC inductance and output capacitors compared with hard-switched current source inverters. The proposed circuit has a voltage clamped circuit which could control the voltage stress of the switches. In this paper, explanations of the new circuit configuration, the simulation, design considerations, and some experimental results are included.

[1]  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.

[2]  Ned Mohan,et al.  Parallel resonant DC link circuit-a novel zero switching loss topology with minimum voltage stresses , 1989 .

[3]  K. E. Bornhardt,et al.  Novel soft-switched GTO-inverter circuits , 1990, Conference Record of the 1990 IEEE Industry Applications Society Annual Meeting.

[4]  Thomas A. Lipo,et al.  Quasi current resonant DC link AC/AC converter , 1993 .

[5]  Paolo Tenti,et al.  High Efficiency Quasi-Resonant DC Link Three-phase Power Inverter for Full-Range PWM , 1995, IEEE Transactions on Industry Applications.

[6]  V. V. Deshpande,et al.  A new topology for parallel resonant DC link with reduced peak voltage , 1996 .