TY - GEN
T1 - Initial rotor position estimation for sensorless interior PMSM with signal injection
AU - Wang, Gaolin
AU - Yang, Rongfeng
AU - Wang, Yangwei
AU - Yu, Yong
AU - Xu, Dianguo
PY - 2010
Y1 - 2010
N2 - An improved initial rotor position estimation method based on signal injection for position sensorless interior permanent magnet synchronous motor (PMSM) at standstill is presented. In first step, high-frequency rotating voltage signal is injected into stator wingding to obtain magnetic pole position. A PI tracing observer is used to regulate the error signal containing magnetic pole position information. When the error signal is regulated to zero, magnetic pole position can be estimated. In second step, in order to identify magnet polarity more easily, two pulse voltage vectors are injected based on the obtained position information in first step. By comparing d-axis stator current values, magnet polarity can be identified. Then the position estimated in the first step can be compensated according to the magnet polarity information. The validity of the proposed estimation scheme is verified by a 22kW interior PMSM. Experimental results show that the method can achieve acceptable estimation accuracy.
AB - An improved initial rotor position estimation method based on signal injection for position sensorless interior permanent magnet synchronous motor (PMSM) at standstill is presented. In first step, high-frequency rotating voltage signal is injected into stator wingding to obtain magnetic pole position. A PI tracing observer is used to regulate the error signal containing magnetic pole position information. When the error signal is regulated to zero, magnetic pole position can be estimated. In second step, in order to identify magnet polarity more easily, two pulse voltage vectors are injected based on the obtained position information in first step. By comparing d-axis stator current values, magnet polarity can be identified. Then the position estimated in the first step can be compensated according to the magnet polarity information. The validity of the proposed estimation scheme is verified by a 22kW interior PMSM. Experimental results show that the method can achieve acceptable estimation accuracy.
KW - High-frequency rotating voltage injection
KW - Initial rotor position estimation
KW - Interior PMSM
KW - Position sensorless
KW - Pulse voltage vector injection
UR - https://www.scopus.com/pages/publications/77956528499
U2 - 10.1109/IPEC.2010.5543182
DO - 10.1109/IPEC.2010.5543182
M3 - 会议稿件
AN - SCOPUS:77956528499
SN - 9781424453955
T3 - 2010 International Power Electronics Conference - ECCE Asia -, IPEC 2010
SP - 2748
EP - 2752
BT - 2010 International Power Electronics Conference - ECCE Asia -, IPEC 2010
T2 - 2010 International Power Electronics Conference - ECCE Asia -, IPEC 2010
Y2 - 21 June 2010 through 24 June 2010
ER -