IPMSM的复合超前角弱磁控制系统研究  

Research on compound leading angle weak magnetic control system for IPMSM

作　　者：万翔宇 赵云 曹颖强 尚诚诚 WAN Xiangyu;ZHAO Yun;CAO Yingqiang;SHANG Chengcheng(School of Electrical and Electronic Engineering,Hubei University of Technology,Wuhan 430068,China)

机构地区：[1]湖北工业大学电气与电子工程学院,湖北武汉430068

出　　处：《传感器与微系统》2024年第9期47-50,共4页Transducer and Microsystem Technologies

基　　金：国家自然科学基金资助项目(51677058)。

摘　　要：为提升内置式永磁同步电机(IPMSM)控制系统弱磁扩速性能,提出了一种复合超前角弱磁控制方法。分析电机的电流及电压限制条件,根据电机运行不同区域的转矩特性,将转矩输出最大化作为目标,设计了全速度范围内的超前角弱磁算法。该方法将电机运行区域分成3段,可实现最大转矩电流比(MTPA)控制区域与超前角弱磁区域的平滑过渡,使得系统在基速阶段转矩输出恒定,在弱磁扩速阶段功率恒定。仿真结果表明,提出的方法有效地拓宽了转速范围,解决了传统超前角弱磁在深度弱磁阶段的电流振荡问题。To improve the weak magnetism speed expansion performance of inner-mounted permanent magnet synchronous motor(IPMSM)control system,a compound leading angle weak magnetic control method is proposed.The current and voltage limitation conditions of the motor are analyzed.According to the torque characteristics of the motor in different areas,the maximum torque output is taken as the goal,and the leading angle weak magnetic algorithm in the full speed range is designed.This method divides the motor operation area into three segments,the smooth transition between the control area of the maximum torque per ampere(MTPA)and the leading angle weak magnetic area can be realized,so that the torque output of the system in the basic speed stage is constant and the power in the weak magnetic speed expansion stage is constant.The simulation results show that the proposed method can effectively broaden the rotating speed range and solve the current oscillation problem in the depth weak magnetic phase of the traditional leading angle weak magnetic.

关 键 词：超前角弱磁 最大转矩电流比 内置式永磁同步电机 弱磁扩速 

分 类 号：TM921[电气工程—电力电子与电力传动]