基于电流平方量约束的新型开关磁阻电机转矩调制方法

doi:10.19595/j.cnki.1000-6753.tces.240086

摘要
图/表
参考文献
相关文章 (15)

全文: PDF (1906 KB) HTML
输出: BibTeX | EndNote (RIS)

摘要针对开关磁阻电机转矩脉动大,现有开关磁阻电机的转矩脉动抑制方案通常依赖于大量电机电磁特性数据的问题,该文提出一种基于电流平方量约束的新型开关磁阻电机转矩调制方法,既可以有效降低开关磁阻电机转矩脉动,也大大降低了控制过程中对于电机电磁特性数据的依赖。首先,基于开关磁阻电机瞬时转矩公式得出一阶电流平方量对于转矩产生的作用;其次,分析了二阶电流平方量的影响,通过一、二阶电流平方量的协同作用得出最小化开关磁阻电机转矩脉动的约束条件;再次,采用极值点确定法得出电流平方量的最优给定值,对于误差转矩脉动采用瞬时转矩补偿法进行分相直接抑制;最后,基于一台150 W、三相12/8极开关磁阻电机进行了实验,验证了所提方法的可行性与有效性。

	服务

	把本文推荐给朋友
	加入我的书架
	加入引用管理器
	E-mail Alert
	RSS
	作者相关文章

关键词 ：开关磁阻电机, 电流平方量, 转矩脉动抑制, 电磁特性数据, 极值点确定法

Abstract：Due to the doubly-salient structure of switched reluctance motors (SRMs), the torque ripple problem always exists and limits the promotion of SRMs. The existing schemes usually rely on a large amount of motor electromagnetic characteristic data to suppress torque ripples during the operation process, which takes up a lot of controller storage space and complicates the control program. In contrast, the schemes independent of the data have an inefficient effect on torque ripple suppression in common. This paper proposes a novel torque modulation method for switched reluctance motors based on current squared constraints to reduce torque ripples and alleviate the dependence on electromagnetic characteristic data during the control process.
Firstly, the effect of the first-order current squared on torque generation is derived based on the instantaneous torque equation of the switched reluctance motor. It is found that the main torque ripple component is the triple frequency torque. Then, the influence of the second-order current squared is analyzed, and the constraint conditions for offsetting the triple frequency torque component are obtained through the synergistic effect of the first-order and the second-order current squared. The extreme point determination method is used to determine the optimal operating state of the current squared, ensuring the numerical value of the current squared is the lowest and positive. Finally, the instantaneous torque compensation method is proposed to suppress the error torque ripple in the specific position regions for each phase.
Experimental verifications are conducted on a 150 W, three-phase, 12/8-pole switched reluctance motor. The torque performance of four schemes is compared: current chopping control, dc-biased sinusoidal-wave excitation, scheme with only the first order current squared acting, and the proposed whole scheme. In the speed range from 300 r/min to 1 500 r/min, the dc-biased sinusoidal-wave excitation has the largest torque ripple because the sinusoidal current waveform excitation scheme for the common alternating current motors is not an effective solution. With speed increasing, the current chopping control scheme has the largest torque ripple increment with no specific control target for the instantaneous torque or current. When only the first-order current squared acts, the torque ripple is large because the second-order and fourth-order inductance harmonics generate the triple-frequency torque component. The proposed scheme has the lowest torque ripple since the largest torque ripple component is offset, and the error torque ripple is compensated.
The contributions of the proposed novel torque modulation method for switched reluctance motor are as follows: (1) The effects of the current squared and inductance harmonics on the torque generation are analyzed. (2) The torque ripple out of the featured position regions can be suppressed combined with the first-order and the second-order current squared. (3) The proposed instantaneous torque compensation method compensates for the torque ripple in the featured position regions. (4) The reliance on electromagnetic characteristic data during the control process is reduced.

Key words： Switched reluctance motor current squared torque ripple suppression electromagnetic characteristics data extreme point determination method

收稿日期: 2024-01-12

PACS:

TM614

基金资助:国家自然科学基金（52207045）、河北省省级科技计划（225676163GH）和省部共建电工装备可靠性与智能化国家重点实验室（河北工业大学）优秀青年创新基金（EERI_OY2023002）资助项目

通讯作者: 孙庆国男,1991年生,副教授,博士生导师,研究方向为高效电机控制、参数辨识与自抗扰控制等。E-mail: qingguosun@hebut.edu.cn

作者简介: 吕广宇男,1998年生,硕士研究生,研究方向为开关磁阻电机控制。E-mail: 202121401103@stu.hebut.edu.cn

引用本文:

孙庆国, 吕广宇, 刘旭, 李珊瑚, 牛峰. 基于电流平方量约束的新型开关磁阻电机转矩调制方法[J]. 电工技术学报, 2024, 39(24): 7742-7751. Sun Qingguo, Lü Guangyu, Liu Xu, Li Shanhu, Niu Feng. Novel Torque Modulation Method for Switched Reluctance Motor Based on Current Squared Constraints. Transactions of China Electrotechnical Society, 2024, 39(24): 7742-7751.

链接本文:

https://dgjsxb.ces-transaction.com/CN/10.19595/j.cnki.1000-6753.tces.240086 https://dgjsxb.ces-transaction.com/CN/Y2024/V39/I24/7742

[1] 于丰源, 陈昊, 闫文举, 等. 宽窄定子极轴向磁通开关磁阻电机的设计与分析[J]. 电工技术学报, 2023, 38(5): 1261-1274.
Yu Fengyuan, Chen Hao, Yan Wenju, et al.Design and characteristic analysis of a wide-narrow stator poles axial flux switched reluctance machine[J]. Transactions of China Electrotechnical Society, 2023, 38(5): 1261-1274.
[2] 石国航, 张永昌, 杨海涛. 一种改进的同步磁阻电机无模型预测电流控制[J]. 电气工程学报, 2023, 18(2): 1-8.
Shi Guohang, Zhang Yongchang, Yang Haitao.An improved model-free predictive current control for synchronous reluctance motor drives[J]. Journal of Electrical Engineering, 2023, 18(2): 1-8.
[3] 孙德博, 胡艳芳, 牛峰, 等. 开关磁阻电机调速系统故障诊断和容错控制方法研究现状及展望[J]. 电工技术学报, 2022, 37(9): 2211-2229.
Sun Debo, Hu Yanfang, Niu Feng, et al.Status and prospect of fault diagnosis and tolerant control methods for switched reluctance motor drive system[J]. Transactions of China Electrotechnical Society, 2022, 37(9): 2211-2229.
[4] 李存贺, 赵博, 刘剑, 等. 开关磁阻电动机小样本磁链特性精确建模方法[J]. 电气工程学报, 2021, 16(1): 16-25.
Li Cunhe, Zhao Bo, Liu Jian, et al.Accurate modeling method for switched reluctance motors with small sample flux-linkage characteristics[J]. Journal of Electrical Engineering, 2021, 16(1): 16-25.
[5] 孙宇亮, 彭兵. 基于阶梯齿的开关磁阻电机尖峰电流削弱方法[J]. 电气技术, 2022, 23(7): 50-55, 63.
Sun Yuliang, Peng Bing.A method for reducing peak current by stepped tooth in switched reluctance motor[J]. Electrical Engineering, 2022, 23(7): 50-55, 63.
[6] Chen Hao, Yang Jian, Xu Shuai.Electrothermal-based junction temperature estimation model for converter of switched reluctance motor drive system[J]. IEEE Transactions on Industrial Electronics, 2020, 67(2): 874-883.
[7] Bartolo J, Degano M, Espina J, et al.Design and initial testing of a high-speed 45-kW switched reluctance drive for aerospace application[J]. IEEE Transactions on Industrial Electronics, 2017, 64(2): 988-997.
[8] 蔡骏, 邓智泉, 胡荣光. 开关磁阻电机在位置检测技术中的应用[J]. 电工技术学报, 2014, 29(3): 150-159.
Cai Jun, Deng Zhiquan, Hu Rongguang.Applications of switched reluctance motors in position sensing[J]. Transactions of China Electrotechnical Society, 2014, 29(3): 150-159.
[9] Wang Daohan, Du Xingfei, Zhang Dengxu, et al.Design, optimization, and prototyping of segmental-type linear switched-reluctance motor with a toroidally wound mover for vertical propulsion application[J]. IEEE Transactions on Industrial Electronics, 2018, 65(2): 1865-1874.
[10] Nashed M N, Ohyama K, Aso K, et al.Automatic turn-off angle control for high speed SRM drive[C]//2006 IEEE International Symposium on Industrial Electronics, Montreal, QC, Canada, 2006: 2152-2157.
[11] 田德翔, 曲兵妮, 宋建成, 等. 基于电流斩波控制的开关磁阻电机脉冲宽度调制占空比解析计算法[J]. 电工技术学报, 2019, 34(21): 4449-4457.
Tian Dexiang, Qu Bingni, Song Jiancheng, et al.An analytical method of PWM duty cycle for switched reluctance motors based on current chopping control[J]. Transactions of China Electrotechnical Society, 2019, 34(21): 4449-4457.
[12] Sun Qingguo, Wu Jianhua, Gan Chun, et al.Modular full-bridge converter for three-phase switched reluctance motors with integrated fault-tolerance capability[J]. IEEE Transactions on Power Elec-tronics, 2019, 34(3): 2622-2634.
[13] Zhu Z Q, Lee B, Huang Liren, et al.Contribution of current harmonics to average torque and torque ripple in switched reluctance machines[J]. IEEE Transa-ctions on Magnetics, 2017, 53(3): 8100909.
[14] 曹鑫, 户红艳, 颜宁, 等. 扇区实时优化的开关磁阻电机直接转矩控制方法[J]. 电工技术学报, 2018, 33(19): 4526-4534.
Cao Xin, Hu Hongyan, Yan Ning, et al.Direct torque control of switched reluctance motor with real-time optimization of sectors[J]. Transactions of China Electrotechnical Society, 2018, 33(19): 4526-4534.
[15] 王雪松, 许爱德, 赵中林, 等. 粒子群优化递归神经网络的SRM磁链观测器[J]. 电气工程学报, 2017, 12(10): 1-8.
Wang Xuesong, Xu Aide, Zhao Zhonglin, et al.Stator flux observer of SRM based on particle swarm optimized recurrent neural network[J]. Journal of Electrical Engineering, 2017, 12(10): 1-8.
[16] Sun Xiaodong, Wu Jiangling, Lei Gang, et al.Torque ripple reduction of SRM drive using improved direct torque control with sliding mode controller and observer[J]. IEEE Transactions on Industrial Elec-tronics, 2021, 68(10): 9334-9345.
[17] 胡艳芳, 康智勇, 孙德博, 等. 基于区间分段转矩分配函数的开关磁阻电机转矩脉动抑制[J]. 电机与控制学报, 2023, 27(10): 54-62.
Hu Yanfang, Kang Zhiyong, Sun Debo, et al.Torque ripple suppression of switched reluctance motor based on interval segmentation torque sharing function[J]. Electric Machines and Control, 2023, 27(10): 54-62.
[18] 杨帆, 陈昊, 李晓东, 等. 一种优化开关磁阻电机换相区控制策略的高效率转矩分配函数[J]. 电工技术学报, 2024, 39(6): 1671-1683.
Yang Fan, Chen Hao, Li Xiaodong, et al.An efficient torque sharing function for optimizing the com-mutation zone control strategy of switched reluctance motors[J]. Transactions of China Electrotechnical Society, 2024, 39(6): 1671-1683.
[19] 蔡燕, 居春雷, 王浩楠, 等. 开关磁阻电机的新型直接瞬时转矩控制方法及其高效率运行[J]. 电工技术学报, 2022, 37(18): 4625-4637.
Cai Yan, Ju Chunlei, Wang Haonan, et al.A new direct instantaneous torque control method of switched reluctance motor and its high efficiency operation[J]. Transactions of China Electrotechnical Society, 2022, 37(18): 4625-4637.
[20] 韩国强, 陆哲, 吴孟霖, 等. 基于改进滑模控制策略的开关磁阻电机直接瞬时转矩控制方法[J]. 电工技术学报, 2022, 37(22): 5740-5755.
Han Guoqiang, Lu Zhe, Wu Menglin, et al.Direct instantaneous torque control method for switched reluctance motor based on an improved sliding mode control strategy[J]. Transactions of China Electro-technical Society, 2022, 37(22): 5740-5755.
[21] 任浩天, 甘醇, 曲荣海, 等. 基于电流转矩协同控制的开关磁阻电机新型直接瞬时转矩控制策略[J/OL]. 中国电机工程学报, 2023, DOI: 10.13334/j.0258-8013.pcsee.230962.
Ren Haotian, Gan Chun, Qu Ronghai, et al.Current-torque coordinated control based direct instantaneous torque control strategy for switched reluctance motor[J/OL]. Proceedings of the CSEE, 2023, DOI: 10.13334/j.0258-8013.pcsee.230962.
[22] Liu Xu, Zhu Z Q, Hasegawa M, et al.Investigation of PWMs on vibration and noise in SRM with sinusoidal bipolar excitation[C]//2012 IEEE International Sympo-sium on Industrial Electronics, Hangzhou, China, 2012: 674-679.
[23] Tungpimolrut K, Kachapornkul S, Jitkreeyarn P, et al.Torque improvement of three-phases full bridge converter based switched reluctance motor with DC assisted winding[C]//2012 15th International Con-ference on Electrical Machines and Systems (ICEMS), Sapporo, Japan, 2012: 1-5.
[24] Nakao N, Akatsu K.Vector control specialized for switched reluctance motor drives[C]//2014 Inter-national Conference on Electrical Machines (ICEM), Berlin, Germany, 2014: 943-949.
[25] 李宏慧, 夏新祥, 蒯松岩. 基于电流矢量分解的开关磁阻电机转矩脉动抑制[J]. 微电机, 2020, 53(9): 40-46, 53.
Li Honghui, Xia Xinxiang, Kuai Songyan.Low torque ripple control of switched reluctance motor based on current vector decomposition[J]. Micromotors, 2020, 53(9): 40-46, 53.
[26] Yu Zhiyue, Gan Chun, Chen Yu, et al.DC-biased sinusoidal current excited switched reluctance motor drives based on flux modulation principle[J]. IEEE Transactions on Power Electronics, 2020, 35(10): 10614-10628.
[27] Yu Zhiyue, Gan Chun, Ni Kai, et al.Instantaneous torque modeling and torque ripple reduction strategy for flux modulated doubly-salient reluctance motor drives[J]. IEEE Transactions on Industrial Electronics, 2022, 69(10): 9838-9848.
[28] Yu Zhiyue, Gan Chun, Ni Kai, et al.Analytical torque ripple reduction strategy for flux modulated doubly-salient reluctance motor drives based on ZSC harmonic regulation[J]. IEEE Transactions on Indu-strial Electronics, 2024, 71(2): 1365-1376.