Adaptive sliding mode observer-differentiator for position and speed estimation of Permanet Magnet Synchronous Motor

2012 ◽  
Author(s):  
Alaa Hijazi ◽  
Xuefang Lin Shi ◽  
Alois Zgorski ◽  
Lilia Sidhom
Keyword(s):  
Sliding Mode ◽  
Synchronous Motor ◽  
Sliding Mode Observer ◽  
Speed Estimation ◽  
Adaptive Sliding Mode

scholarly journals Sensorless-MTPA Control of Permanent Magnet Synchronous Motor Based on an Adaptive Sliding Mode Observer

Energies ◽  
2019 ◽  
Vol 12 (19) ◽  
pp. 3773 ◽  
Author(s):  
Ye ◽  
Shi ◽  
Wang ◽  
Li ◽  
Xia
Keyword(s):  
Permanent Magnet ◽  
Sliding Mode ◽  
Permanent Magnet Synchronous Motor ◽  
Synchronous Motor ◽  
Sliding Mode Observer ◽  
Control Performance ◽  
Loop Control ◽  
Rotor Position ◽  
Adaptive Sliding Mode ◽  
Maximum Torque Per Ampere

Different from the traditional method of the interior permanent magnet synchronous motor (IPMSM), the sensorless maximum torque per ampere (MTPA) control scheme in this paper does not need two observers for rotor position and d-q axis inductances, respectively. It only needs an adaptive sliding mode observer (ASMO) based on the extended flux (EF) to realize double-loop control and MTPA operation simultaneously. The adaptive mechanism of rotor speed is designed to ensure stability of the ASMO. The rotor position and the difference between d-axis and q-axis inductances are obtained from the estimated EF to acquire the MTPA points when the position sensor of the IPMSM is absent. The proposed scheme is realized on a 20kW IPMSM where the sensorless control performance and the MTPA control performance are tested. The effectiveness of the proposed method is verified by the experiment results.

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