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A variable-voltage current-commutated three-phase inverter

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2 Author(s)
Kumar, B.S.A. ; Dept. of Electr. & Comput. Eng., Univ. of Southwestern Louisiana, Lafayette, LA, USA ; Mirbod, Ali

A six-pulse three-phase inverter circuit that provides a wide range of AC output voltages and frequencies is presented. The inverter circuit uses asymmetrical thyristors for all the controllable switches. Through the use of these devices, a small turn-off time, low commutation circuit and switching power losses, and high-surge-current handling capabilities are obtained. The performance of the inverter is evaluated both analytically and experimentally. The inverter no-load power losses are calculated and compared with the experimental values using different supply voltages

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Industry Applications, IEEE Transactions on  (Volume:25 ,  Issue: 3 )