无电解电容三相永磁同步电机驱动系统控制策略研究  

Control Strategy of Electrolytic Capacitor-less Three Phase Permanent Magnet Synchronous Motor Drive System

作　　者：张贝贝 何维祥 张恒伟 李小荣 董淑海 ZHANG Beibei;HE Weixiang;ZHANG Hengwei;LI Xiaorong;DONG Shuhai(State Grid Lianyungang Power Supply Company,Lianyungang Jiangsu 222000,China)

机构地区：[1]国网连云港供电公司,江苏连云港222000

出　　处：《微电机》2023年第11期55-59,共5页Micromotors

摘　　要：无电解电容三相永磁同步电机驱动系统具有寿命长、功率密度高等优点。本文分析无电解电容三相永磁同步电机驱动系统的基本结构和工作原理;详细分析电网侧输入功率与电机交轴电流关系,提出q轴电流给定控制策略;利用直流母线电压限制电压条件,提出简单有效的d轴电流给定控制策略;为提高电网侧功率因数,提出加入陷波器滤除交直轴给定电压中的特定次谐波分量。仿真结果表明,该控制策略能够有效的降低电网侧输入电流畸变率。Electrolytic capacitor-less three phase permanent magnet synchronous motor drive system has the advantage of long lifetime,high power density and so on.This paper made a detailed analysis of the basic structure and working principle of the system.The relationship of q axis current and the output power of the inverter was analyzed and q axis current control strategy was given.The simple and valid control strategy of d axis current was given based on DC bus voltage limitation.In order to improve the power factor of the grid side,a notch filter was added to filter the specified harmonic component in the given d-axis voltage.The simulation results show that the control strategy can effectively reduce the input current distortion rate.

关 键 词：无电解电容 功率密度高 直流母线电压 功率因数 陷波器 电流畸变率 

分 类 号：TM351[电气工程—电机] TM341[自动化与计算机技术—检测技术与自动化装置] TP273[自动化与计算机技术—控制科学与工程]