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