Implementation of a current-model estimator for sensorless control of synchronous motor

2002 ◽  
Author(s):  
C. Bruguier ◽  
J.P. Rognon ◽  
C. Pelissou
Keyword(s):  
Sensorless Control ◽  
Current Model ◽  
Synchronous Motor ◽  
A Current

scholarly journals Sensorless Predictive Current Control of a Permanent Magnet Synchronous Motor Powered by a Three-Level Inverter

2021 ◽  
Vol 11 (22) ◽  
pp. 10840
Author(s):  
Chenhui Zhou ◽  
Feng Yu ◽  
Chenguang Zhu ◽  
Jingfeng Mao
Keyword(s):  
Permanent Magnet ◽  
Current Model ◽  
Permanent Magnet Synchronous Motor ◽  
Synchronous Motor ◽  
Current Control ◽  
Permanent Magnet Synchronous Motors ◽  
High Frequency Signal ◽  
Voltage Balance ◽  
Full Speed ◽  
A Current

Permanent magnet synchronous motors and their relevant control techniques have become more and more prevalent in electric vehicle driving applications because of their outstanding performance. This paper studies a simple and effective sensorless scheme based on a current observer for a permanent magnet synchronous motor powered by a three-level inverter, which avoids the injection of a high-frequency signal and the observation of back-electromotive force. In this way, a current observer is constructed to observe d–q-axes currents by relying on an extended-current model. Thereafter, the position and speed of the machine can be extracted from two PI controllers associated with the d–q-axes current-tracking errors. Meanwhile, it takes into account the model predictive current control with neutral-point voltage balance to maintain the stability of the three-level inverter system. In general, this scheme realizes sensorless operation in a full-speed domain and is no longer limited by the types of inverter and method used.

Sensorless Control of a PMSM Synchronous Motor at Low Speed

2006 ◽  
Author(s):  
R. S. Miranda ◽  
E. M. Fernandes ◽  
C. B. Jacobina ◽  
A. M. N. Lima ◽  
A. C. Oliveira ◽  
...  
Keyword(s):  
Sensorless Control ◽  
Synchronous Motor ◽  
Low Speed
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