Self-Optimizing Control of Commutation Angle for DSEM Based on Three-phase Nine-state Control

2022 25th International Conference on Electrical Machines and Systems (ICEMS) Pub Date : 2022-11-29 DOI:10.1109/ICEMS56177.2022.9983261

Jingcheng Huang, Bo Zhou, L. Xiong, Minghui Zhang

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Abstract

The current closed loop of three-phase nine-state control is an effective method to suppress torque ripple of doubly salient electromagnetic motor. In this paper, the commutation process in “three-phase nine-state” conduction mode is analyzed in detail, and the influence of different commutation angles on torque ripple is compared. On this basis, a self-optimizing control of commutation angle for DSEM is proposed, in which the initial commutation angle is set first. Then, according to the feedback of each phase current, the angle is continuously adjusted by iterative control, so that at the end of commutation, the current of conduction phase just reaches the reference current value, and the optimal commutation angle is reached at this time to reduce torque ripple. Finally, the experiment was carried out based on 18/12-pole DSEM, and the experimental results verify the effectiveness of the method. With no requirement for system parameters, this method can obtain the commutation angle required to suppress the torque ripple under different working conditions online.

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基于三相九态控制的dssem换相角自优化控制

三相九态控制电流闭环是抑制双凸极电磁电机转矩脉动的有效方法。本文详细分析了“三相九态”传导模式下的换相过程，比较了不同换相角度对转矩脉动的影响。在此基础上，提出了一种先设定初始换相角的dssem换相角自优化控制方法。然后，根据各相电流的反馈，通过迭代控制连续调整角度，使换相结束时导通相电流刚好达到参考电流值，此时达到最佳换相角，减小转矩脉动。最后，基于18/12极DSEM进行了实验，实验结果验证了该方法的有效性。该方法在不要求系统参数的情况下，可在线获得不同工况下抑制转矩脉动所需的换相角。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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2022 25th International Conference on Electrical Machines and Systems (ICEMS)

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