Magnetic Polarity Detection Method for Permanent Magnet Synchronous Motor using Inductance Variation

2021 ◽  
Vol 141 (7) ◽  
pp. 552-560
Author(s):  
Toshifumi Sakai ◽  
Naoki Kunihiro ◽  
Kuniaki Otsuka ◽  
Takeshi Shinomiya
Keyword(s):  
Permanent Magnet ◽  
Detection Method ◽  
Permanent Magnet Synchronous Motor ◽  
Synchronous Motor ◽  
Magnetic Polarity

Two-Speed Line Start Permanent Magnet Synchronous Motor With Dual Magnetic Polarity

2018 ◽  
Vol 54 (5) ◽  
pp. 4268-4277 ◽  
Author(s):  
Fakhrossadat Ghoroghchian ◽  
Aliakbar Damaki Aliabad ◽  
Ebrahim Amiri
Keyword(s):  
Permanent Magnet ◽  
Permanent Magnet Synchronous Motor ◽  
Synchronous Motor ◽  
Magnetic Polarity

scholarly journals Demagnetization Fault Diagnosis of Permanent Magnet Synchronous Motor with Inductance Disturbance

2021 ◽  
Vol 25 (5) ◽  
pp. 647-654
Author(s):  
Fan Xiao ◽  
Jing He ◽  
Miaoying Zhang ◽  
◽  
Keyword(s):  
Fault Diagnosis ◽  
Permanent Magnet ◽  
Detection Method ◽  
Permanent Magnet Synchronous Motor ◽  
Synchronous Motor ◽  
Adaptive Observer ◽  
Flux Linkage ◽  
Adaptive Laws ◽  
Different Characteristics ◽  
The Mathematical Model

To address the problem of demagnetization fault diagnosis of permanent magnet synchronous motor (PMSM) under inductance change, a demagnetization fault detection method based on an adaptive observer is proposed. First, the mathematical model of the demagnetization fault of PMSM in a synchronous rotating coordinate system is established, and the inductance disturbance is analyzed separately. Then, considering the different characteristics of the flux linkage fault and inductance disturbance, a new adaptive observer is proposed. Two adaptive laws are designed to ensure the accuracy of fault diagnosis and to eliminate the influence of inductance disturbance, thus achieving the robust diagnosis of demagnetization fault.

Study of Reactance Evaluation Methods in Saturated Magnetic Field for Permanent Magnet Synchronous Motor

2006 ◽  
Vol 126 (12) ◽  
pp. 1722-1729 ◽  
Author(s):  
Akeshi Takahashi ◽  
Haruo Koharagi ◽  
Satoshi Kikuchi ◽  
Kazumasa Ide ◽  
Kazuo Shima
Keyword(s):  
Magnetic Field ◽  
Permanent Magnet ◽  
Permanent Magnet Synchronous Motor ◽  
Synchronous Motor ◽  
Evaluation Methods
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