基于超前角结合MTPV的SPMSM复合弱磁控制策略*

doi:10.11985/2022.03.013

电气工程学报 ›› 2022, Vol. 17 ›› Issue (3): 114-121.doi: 10.11985/2022.03.013

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基于超前角结合MTPV的SPMSM复合弱磁控制策略^*

谢明睿(), 赖纪东(), 苏建徽(), 周晨光

合肥工业大学电气与自动化工程学院合肥 230009

收稿日期:2021-09-25 修回日期:2022-03-19 出版日期:2022-09-25 发布日期:2022-10-28
通讯作者: 谢明睿 E-mail:xiemingrui@mail.hfut.edu.cn;laijidong@126.com;su_chen@126.com
作者简介:赖纪东,男,1981年生,副教授,硕士研究生导师。主要研究方向为电力变换节能及电机驱动技术、分布式发电与微电网技术。E-mail： laijidong@126.com
苏建徽,男,1963年生,教授,博士研究生导师。主要研究方向为新能源发电技术、电力变换节能技术。E-mail： su_chen@126.com
基金资助:
*中央科研基本业务费支持(PA2020GDGP0053);高等学校学科创新引智计划(BP0719039)

A SPMSM Hybrid Flux-weakening Control Strategy Based on Lead Angle Combined with MTPV

XIE Mingrui(), LAI Jidong(), SU Jianhui(), ZHOU Chenguang

School of Electrical Engineering and Automation, Hefei University of Technology, Hefei 230009

Received:2021-09-25 Revised:2022-03-19 Online:2022-09-25 Published:2022-10-28
Contact: XIE Mingrui E-mail:xiemingrui@mail.hfut.edu.cn;laijidong@126.com;su_chen@126.com

摘要/Abstract

摘要：

表贴式永磁同步电机无限转速系统,恒功率弱磁升速下若要进一步提高转速,需要切换控制策略使其工作于深度弱磁区,切换点准确与否直接影响控制稳定性。首先通过失控分析,明确了恒功率弱磁区到深度弱磁区的最佳切换点,然后基于最佳电流轨迹,提出了一种超前角结合MTPV的复合弱磁控制策略,实现了dq轴电流同时控制,且控制算法简洁,最后通过仿真和试验验证了控制策略的有效性。

关键词: 无限转速系统, 失控分析, 最佳切换点, 复合弱磁控制策略

Abstract:

In the infinite speed system of surface permanent magnet synchronous motor, to further improve the speed in constant power flux-weakening operating region, it is necessary to switch the control strategy to make it work in the deep flux-weakening operating region. Whether the switching point is accurate or not directly affects the control stability. First, the out-of-control analysis is carried out, then the optimal switching point is identified between the constant power flux-weakening operating region and deep flux-weakening operating region. Besides, according to the optimal current trajectory, a hybrid flux-weakening control strategy based on lead angle combined with MTPV is proposed to realize the simultaneous control of d, q- axis current, and the control algorithm is simple. Finally, the effectiveness of the control strategy is verified by simulation and experiment.

Key words: Infinite speed system, out-of-control analysis, optimal switching point, hybrid flux-weakening control strategy

中图分类号:

TM351

谢明睿, 赖纪东, 苏建徽, 周晨光. 基于超前角结合MTPV的SPMSM复合弱磁控制策略^*[J]. 电气工程学报, 2022, 17(3): 114-121.

XIE Mingrui, LAI Jidong, SU Jianhui, ZHOU Chenguang. A SPMSM Hybrid Flux-weakening Control Strategy Based on Lead Angle Combined with MTPV[J]. Journal of Electrical Engineering, 2022, 17(3): 114-121.

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参数	数值
额定电压U_N/V	220
额定电流I_N/A	6.5
额定负载T_L/(N·m)	2
绕组电阻R_s/Ω	3
绕组电感L_s/mH	15.67
永磁磁链Ψ_f /Wb	0.094 4
极对数n_p	4
转动惯量J/(kg·m²)	5.33×10^-4

基于超前角结合MTPV的SPMSM复合弱磁控制策略^*

A SPMSM Hybrid Flux-weakening Control Strategy Based on Lead Angle Combined with MTPV

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