基于自适应零电压矢量双脉冲法的永磁同步电机带速重投策略  

Flying Start of PMSM Strategy Based on Adaptive Double Zero Voltage Vector Pulse Method

作　　者：张国强[1] 李润东 黄圆明 丁大尉 王高林[1] 徐殿国[1] ZHANG Guoqiang;LI Rundong;HUANG Yuanming;DING Dawei;WANG Gaolin;XU Dianguo(School of Electrical Engineering and Automation,Harbin Institute of Technology,Harbin 150001,Heilongjiang,China)

机构地区：[1]哈尔滨工业大学电气工程及自动化学院,黑龙江哈尔滨150001

出　　处：《电气传动》2023年第12期10-15,共6页Electric Drive

基　　金：国家自然科学基金(52177034)。

摘　　要：在某些特殊应用场合,永磁同步电机运行过程中可能发生断电,需要其在旋转状态下重新启动,即带速重投,准确的初始位置/转速观测是带速重投的基础。针对传统零电压矢量脉冲法在高转速下初始位置/转速观测时脉冲宽度和脉冲间隔无法自动调节的问题,研究零电压矢量脉宽和脉冲间隔自适应调节策略。通过比较实时监测的短路电流矢量幅值与所设置的临界值,进行零电压矢量脉冲宽度自适应调节;根据零电压矢量单脉冲法的转速预估结果,实现脉冲间隔自适应调节。实验结果表明,所研究的自适应零电压矢量双脉冲法能够针对不同的初始转速自适应确定合适的脉宽和脉冲间隔,有利于提高高转速下初始位置/转速观测和带速重投性能。Supply interruption may occur during the operation of permanent magnet synchronous motor(PMSM)in some special applications and it needs to be restarted in the rotating state which is called flying start,the accurate initial position/speed observation is the foundation of flying start.Aiming at the problem that the pulse width and interval time cannot be adjusted automatically when the traditional zero-voltage vector(ZVV)pulse method is used to observe the initial position/speed,the adaptive adjustment strategy of ZVV pulse was studied.The ZVV action time was adjusted adaptively through comparing the amplitude of short circuit current vector monitored in real time with the threshold value.The ZVV interval time was adjusted adaptively according to the speed prediction results of single ZVV pulse method.The experimental results show that the designed adaptive double ZVV pulse method can adjust appropriate pulse width and interval time of ZVV pulse for different initial speed,which is conducive to improving the performance of initial position/speed observation and flying start at high speed.

关 键 词：永磁同步电机 带速重投 初始位置/转速观测 自适应零电压矢量双脉冲法 

分 类 号：TM28[一般工业技术—材料科学与工程]