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电气工程与自动化

Journal of Electrical Engineering and Automation

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Journal of Electrical Engineering and Automation. 2025; 4: (3) ; 10.12208/j.jeea.20250069 .

Active damped current loop control strategy for IPMSM considering digital delays
考虑数字延迟的IPMSM有源阻尼电流环控制策略

作者： 吴复霞1, 杨艳1 *, 徐英东1, 吴旭2

1 南京邮电大学 江苏南京

2 国电南瑞集团 江苏南京

*通讯作者： 杨艳,单位： 南京邮电大学 江苏南京；

引用本文: 吴复霞, 杨艳, 徐英东, 吴旭 考虑数字延迟的IPMSM有源阻尼电流环控制策略[J]. 电气工程与自动化, 2025; 4: (3) : 1-8.
Published: 2025/3/19 10:00:22

摘要

考虑到永磁同步电机电流环的优化研究目前主要聚焦于其跟踪性能的提升，即动态性能，而对其抗扰动能力的研究相对较少，本文在考虑数字延迟影响的复矢量电流环基础上，提出了一种结合有源阻尼策略的改进型复矢量电流环设计方法，改进策略有效抑制了扰动电压作用下电流的震荡幅值，并缩短了电流恢复稳态的时间，从而提升了电流环的抗扰动能力。仿真与实验结果表明，所提出的改进复矢量有源阻尼电流环设计方法在数字延时较大的工况下能够有效改善电流环的抗干扰能力。

关键词： 永磁同步电机；电流环；数字延迟；有源阻尼

Abstract

Considering that the optimisation research on the current loop of permanent magnet synchronous motor mainly focuses on the improvement of its tracking performance, i.e., dynamic performance, while the research on its perturbation resistance is relatively less, this paper proposes an improved complex vector current loop design method combined with an active damping strategy based on the complex vector current loop considering the effect of the digital delay, and the improved strategy effectively suppresses the amplitude of the current oscillations under the action of the perturbation voltage, and The improved strategy effectively suppresses the current oscillation amplitude under the disturbance voltage, and shortens the time for the current to return to the steady state, thus improving the anti-disturbance capability of the current loop. Simulation and experimental results show that the proposed improved complex-vector active-damped current loop design method can effectively improve the anti-disturbance capability of the current loop under the condition of large digital delay.

Key words： Internal permanent magnet synchronous motor; Current loop; Digital delay; Active damping

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