基于多运行区域的磁场增强型内置永磁电机电流分段控制研究  

Research on Current Segment Control of Flux-intensifying Interior Permanent Magnet Motor Based on Multi-operating Region

作　　者：刘永锋 徐磊[1] 朱孝勇[1] 张丽 全力[1] LIU Yongfeng;XU Lei;ZHU Xiaoyong;ZHANG Li;QUAN Li(School of Electrical and Information Engineering,Jiangsu University,Zhenjiang 212013,Jiangsu Province,China)

机构地区：[1]江苏大学电气信息工程学院,江苏省镇江市212013

出　　处：《中国电机工程学报》2021年第10期3611-3619,共9页Proceedings of the CSEE

基　　金：国家自然科学基金项目(51877099,51907081);江苏大学农业装备学部项目(NZXB20200103);江苏省现代农机装备与技术示范推广项目(NJ2020-13)。

摘　　要：磁场增强型内置永磁电机具有反凸极、调速范围宽、过载能力强等特点,在需要宽调速、多运行工况等应用领域具有广泛的应用前景。针对该类电机反凸极特性和宽调速特点,该文提出一种多运行区域电流分段控制策略,将磁场增强型内置永磁电机的整个运行区间分为:增磁I区、增磁II区、弱磁I区、弱磁II区4个运行区间。采用电流协调控制,实现该电机在多个运行区域的有效控制,解决d轴电流由正到负的过程中导致的电流突变和系统不稳定性问题,使电机在整个运行区间都能运行在最佳的电流轨迹上,提高了电机带负载能力,增强了系统的稳定性。最后,进行实验研究,验证该控制策略的有效性和稳定性。The flux-intensifying interior permanent magnet(FI-IPM)motors feature the negative saliency,wide speed regulation range,strong overload ability and etc.have a wide potential application prospect in the fields of wide speed regulation and multi-operation conditions.This paper focued on the utilization of the negative saliency and wide speed range characteristics,and a multi-running area current segment control strategy was proposed for the motors.The whole operating range of the FI-IPM motor was divided into four parts,namely flux-enhance I,flux-enhance II,flux-weakening I and flux-weakening II.Based on the current coordinated control,the effective control of the motor in the multiple operating areas was realized,and the current mutation and the system instability caused by the positive to negative process of the d axis current were solved.Moreover,the optimal current trajectory could be obtained for the FI-IPM motor which could enhance the load capacity and the stability of the control system.Finally,experimental studies were carried out,and the results verified the effectiveness and stability of the strategy.

关 键 词：磁场增强型电机 反凸极 宽调速 电流分段控制 

分 类 号：TM341[电气工程—电机]