An improved initial rotor position estimation method using high-frequency pulsating voltage injection for PMSM

作     者：Yang Jiang Ming Cheng Yang Jiang;Ming Cheng

作者机构：School of Electrical EngineeringSoutheast UniversityNanjing 210096China 

出 版 物：《Defence Technology（防务技术）》 (Defence Technology)

年 卷 期：2024年第33卷第3期

页      面：19-29页

核心收录：

学科分类：080801[工学-电机与电器] 0808[工学-电气工程] 080902[工学-电路与系统] 0809[工学-电子科学与技术（可授工学、理学学位）] 08[工学] 

基　　金：supported by the National Natural Science Foundation of China under Grant 51991384 Anhui Provincial Major Science and Technology Project under Grant 202203c08020010 

主　　题：Initial position detection Signal demodulation algorithm Magnetic polarity detection Filter elimination 

摘      要：High frequency pulsating voltage injection method is a good candidate for detecting the initial rotor position of permanent magnet synchronous ***,traditional methods require a large number of filters,which leads to the deterioration of system stability and dynamic *** order to solve these problems,a new signal demodulation method is proposed in this *** proposed new method can directly obtain the amplitude of high-frequency current,thus eliminating the use of filters,improving system stability and dynamic performance and saving the work of adjusting filter *** addition,a new magnetic polarity detection method is proposed,which is robust to current measurement ***,experiments verify the effectiveness of the method.