Abstract：For the multi-phase induction motor with non-sinusoidal supply, an iterative method based on equivalent circuit and distributed magnetic circuit method is proposed in this paper. In the case of the 3-order harmonic injection, the steady-state performance indexes are calculated, and the quantitative relationship between 3-order harmonic injection parameters and steady state performance indexes is obtained and analyzed. The results show that the 3-order harmonic injection has the best effect on the optimization of the steady-state performance indexes of the motor, when the 3-order harmonic and fundamental component of the air-gap magnetic density satisfies the relative positional relationship of “peak-to-valley” and the amplitude ratio equals 1/6. The 3-order harmonic injection is implemented on a 45kW fifteen-phase induction motor. As the maximum value of air-gap magnetic density and current effective value remain constant, the experimental results show that the fundamental voltage and the output power can be increased by about 13% in comparison to the non-harmonic condition.
孟繁庆, 易新强, 刘海涛, 王东. 三次谐波注入下多相感应电机稳态性能分析[J]. 电工技术学报, 2020, 35(16): 3396-3405.
Meng Fanqing, Yi Xinqiang, Liu Haitao, Wang Dong. Steady-State Performance Analysis of Multiphase Induction Motor with Third-Order Harmonic Injection. Transactions of China Electrotechnical Society, 2020, 35(16): 3396-3405.
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2020, Vol. 35 
