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Waveform optimization design of an AC converter machine

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2 Author(s)
F. X. Wang ; Dept. of Electr. Eng., Shenyang Polytech. Univ., China ; B. Y. Zhang

A square wave machine with 115° rectangular blocks is shown to be theoretically capable of 12.8% more power than a conventionally designed sinusoidal wave machine of the same size. The comparative test results of two 5 kW synchronous machines confirm that the optimized machine can output 8.52% more power than a conventionally designed synchronous machine of the same size and temperature rise. The efficiency gain is about 2% compared to a sine wave machine peak efficiency of 85%. The ripple component of the rectified voltage for the square wave machine is shown to be markedly reduced

Published in:

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