电气传动2023，Vol.53Issue(12)：62-67,73,7.DOI:10.19457/j.1001-2095.dqcd25017
惰行状态下的地铁PMSM转子初始位置辨识策略
Initial Rotor Position Identification Strategy of PMSM in Subway Under Coasting Condition
岳学磊 1王雷 1田地 1许克磊1
作者信息
- 1. 西安中车永电捷通电气有限公司,陕西 西安 710016
- 折叠
摘要
Abstract
Permanent magnet synchronous motor(PMSM)has become the development direction of the new generation of rail transit traction system due to its characteristics of high efficiency and high power density.Among them,the research on the identification method of the initial position and frequency of the motor rotor in coasting condition is an important part of the position sensorless control technology of PMSM.Therefore,the zero voltage vector single pulse method and double pulse method were firstly studied.When the PMSM was in coasting condition,one or two pulses were short-circuited by all the lower bridge arms of three-phase inverter,and the initial position and frequency of rotor were obtained according to the short-circuit response current.On this basis,a method of short circuit time selection of zero voltage vector pulse method and a zero voltage vector compound pulse method were proposed to ensure that PMSM can stably restart at different coasting frequency.Through Matlab/Simulink simulation and the test conducted in the test center of CRRC Dalian Electric Traction R&D Center Co.,Ltd.,the results show that PMSM under different frequencies can stably restart,the frequency identification error is less than 0.6 Hz,the rotor position identification error is less than 5°.关键词
永磁同步电机/惰行状态/零电压矢量脉冲法/转子初始位置和频率辨识Key words
permanent magnet synchronous motor(PMSM)/coasting condition/zero voltage vector pulse method/initial rotor position and frequency identification分类
信息技术与安全科学引用本文复制引用
岳学磊,王雷,田地,许克磊..惰行状态下的地铁PMSM转子初始位置辨识策略[J].电气传动,2023,53(12):62-67,73,7.
