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Exponential response electrical pole-changing method for a five-phase induction machine with a current sliding mode control strategy

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Abstract

Electrical pole-changing technology leads to torque ripple and speed fluctuation despite broadening the constant power speed range of the multiphase induction machine (IM) system. To reduce the torque ripple and speed fluctuation of the machine, we investigate an exponential response electrical pole-changing method for five-phase IM with a current sliding-mode control strategy. This control strategy employs the dual-plane (d 1–q 1 and d 2–q 2) vector control method, which allows the IM to operate under different pole modes. Current sliding-mode controllers are applied instead of conventional proportional integral (PI) controllers to adjust the current vectors, and exponential current response achieves a smooth transition between the d 1–q 1 and d 2–q 2 planes. Compared with the step response pole-changing with PI control method, the proposed pole-changing method greatly reduces the torque ripple and speed fluctuation of the IM during the pole-changing process. Experimental results verify the exceptional performance of the proposed electrical pole-changing strategy.

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Authors and Affiliations

  1. College of Electrical Engineering, Zhejiang University, Hangzhou, 310027, China

    Jia-qiang Yang, Rong-sen Yin, Xiao-jun Zhang & Jin Huang

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  1. Jia-qiang Yang
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  2. Rong-sen Yin
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  3. Xiao-jun Zhang
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  4. Jin Huang
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Correspondence to Jia-qiang Yang.

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Project supported by the National Basic Research Program (973) of China (No. 2013CB035600)

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Yang, Jq., Yin, Rs., Zhang, Xj. et al. Exponential response electrical pole-changing method for a five-phase induction machine with a current sliding mode control strategy. Frontiers Inf Technol Electronic Eng 18, 1151–1166 (2017). https://doi.org/10.1631/FITEE.1601728

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