无刷直流电机直接转矩控制系统零矢量优化

微特电机 ›› 2022, Vol. 50 ›› Issue (9): 12-19.

无刷直流电机直接转矩控制系统零矢量优化

杨建飞^1,2, 陈秋仲¹, 王日茗¹, 邱鑫^1,2, 金振¹, 张永民¹, 王浩亮³

1.南京师范大学电气与自动化工程学院,南京 210023;
2.南京智能高端装备产业研究院有限公司,南京 210042;
3.江苏远东电机制造有限公司,泰州 225500

收稿日期:2022-04-17 出版日期:2022-09-28 发布日期:2022-10-09
作者简介:杨建飞(1982—),男,博士,副教授,研究方向为永磁同步电机直接转矩控制。陈秋仲(1997—),男,硕士研究生,研究方向为无刷直流电机驱动控制系统。
基金资助:
国家自然科学基金项目(51407095,51607094,51907027);江苏省自然科学基金项目(BK20151548);六大人才高峰项目(GDZB-043);江苏省科技成果转化项目(BA2018035);江苏省研究生实践创新项目(SJCX21_0562,SJCX21_0566,SJCX21_0568)

Optimization of Zero-Voltage Vector of Direct Torque Control System for Brushless DC Motor

YANG Jianfei^1,2, CHEN Qiuzhong¹, WANG Riming¹, QIU Xin^1,2, JIN Zhen¹, ZHANG Yongmin¹, WANG Haoliang³

1. School of Electrical and Automation Engineering, Nanjing Normal University,Nanjing 210023,China;
2. Nanjing Institute of Intelligent High-End Equipment Industry Co., Ltd.,Nanjing 210042, China;
3. Jiangsu Yuandong Electric Motor Manufacturing Co., Ltd., Taizhou 225500, China

Received:2022-04-17 Online:2022-09-28 Published:2022-10-09

摘要/Abstract

摘要： 剖析了双管零矢量与单管零矢量的各自的优劣,针对反向续流问题改进双管零矢量,使新型零矢量可对续流回路截流。为了适应新型单零矢量控制策略,替换原有零矢量,建立了单管零矢量选择表。电机在相同转速、不同负载以及相同负载、不同转速等不同给定条件下进行实验,通过数据分析,发现实验结果高度贴合实验理论。

关键词: 无刷直流电机, 直接转矩控制, 转矩脉动抑制, 零电压矢量

Abstract: The realization of the direct torque control method for the brushless DC motor depends on the selection and transmission of the voltage vectors. The correct definition and proper usage of zero-voltage vector have a crucial influence on the performance of the motor. However, The analysis of the existing zero voltage vector of two switches in BLDCM DTC system shows that there is reverse freewheeling during the action of the zero-voltage vector of two switches, resulting in torque ripple, which cannot meet therequirements of the zero-voltage vector. It is important to analyze and improve its performance based on the correct definition of the zero voltage vector. In this paper, The torque performance of the motor under the zero-voltage vector of two switches was improved based on the existing research. The zero-voltage vector of one switch was established, which could meet the requirements of zero vector in definition and electrical performance and effectivelyavoided the torque ripple caused by reverse conduction. A new voltage vector selection scheme was established based on zero-voltage vector of one switch. The experimental results of two kinds of zero-voltage vectors under different loads and different speeds were compared to verify the correctness of theoretical analysis.

Key words: brushless DC motor(BLDCM), direct torque control(DTC), torque ripple suppression, zero-voltage vector

中图分类号:

TM351

杨建飞, 陈秋仲, 王日茗, 邱鑫, 金振, 张永民, 王浩亮. 无刷直流电机直接转矩控制系统零矢量优化[J]. 微特电机, 2022, 50(9): 12-19.

YANG Jianfei, CHEN Qiuzhong, WANG Riming, QIU Xin, JIN Zhen, ZHANG Yongmin, WANG Haoliang. Optimization of Zero-Voltage Vector of Direct Torque Control System for Brushless DC Motor[J]. Small & Special Electrical Machines, 2022, 50(9): 12-19.

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