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Performance Improvement of Current Source Inverter-Fed Induction Motor Drives

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4 Author(s)
Kaimoto, Masahiro ; Electronics and Control Technology Center, Fuji Electric Company Ltd., No. 1, Fuji-cho, Hino-city, Tokyo, Japan. ; Hashii, Makoto ; Yanase, Takao ; Nakano, Takayoshi

A high performance variable speed drive system using current source inverter fed induction motor is described. The principle of the drive control is based on the field-orientation method, where the stator current is used as the vector quantity. To improve the system response and to operate smoothly at low speed, a current pulsewidth modulation (PWM) control is provided by means of a feedback loop. This system operates stably and shows a high dynamic performance in a wide range, from zero to rated speed. Dual current source inverter is applied to this drive system which results in a remarkably low copper loss of the motor, even in PWM operation.

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Industry Applications, IEEE Transactions on  (Volume:IA-18 ,  Issue: 6 )