A loss minimization control method for IPMSM drive system based on improved gradient descent algorithm

Hongyi Yang; Xiaoyan Huang; Qidi Shen; Zhaokai Li; Min Wu

doi:10.1587/elex.19.20220069

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A loss minimization control method for IPMSM drive system based on improved gradient descent algorithm

Hongyi Yang, Xiaoyan Huang, Qidi Shen, Zhaokai Li, Min Wu

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Keywords: loss minimization control, gradient descent algorithm, permanent magnet synchronous machine, iron loss, maximum torque per ampere

JOURNAL FREE ACCESS

2022 Volume 19 Issue 7 Pages 20220069

DOI https://doi.org/10.1587/elex.19.20220069

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Abstract

This paper proposes a loss minimization control method based on improved gradient descent algorithm (GDA) for interior permanent magnet synchronous machine (IPMSM). Since the power of PMSM is derived from the measured phase voltage and current, this method is independent from the iron loss model containing motor parameters. Meanwhile, it can guarantee the stability of PMSM system when entering the searching period. Both maximum torque per ampere (MTPA) and i_d=0 control are carried out to validate the effectiveness of the proposed method. The experimental results are demonstrated to verify the proposed approach.

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