Stator Flux Sliding Mode Observer of Permanent Magnet Synchronous Motor Based on Effective Flux
- Resource Type
- Conference
- Authors
- Huang, Shengjie; Zhang, Qizhi
- Source
- 2022 4th International Conference on Intelligent Control, Measurement and Signal Processing (ICMSP) Intelligent Control, Measurement and Signal Processing (ICMSP), 2022 4th International Conference on. :343-347 Jul, 2022
- Subject
- Computing and Processing
Robotics and Control Systems
Signal Processing and Analysis
Inductance
Torque
Torque control
Observers
Stators
Signal processing
Permanent magnet motors
Sliding mode variable structure control
Direct torque control
Permanent magnet synchronous motor
Stator flux observer
- Language
In order to improve the stator flux observation performance of permanent magnet synchronous motor (PMSM) with DIRECT Torque Control (DTC), a stator flux sliding mode observer is proposed based on the concept of effective flux. The stator current and effective flux in the stator stationary coordinate system are taken as state variables to construct the corresponding sliding mode observer. The stator flux is calculated according to the observed effective flux. Experimental results show that the proposed observer can obtain more accurate stator flux observations than the open-loop observer. The proposed observer has strong robust suppression ability to the variation of motor inductance.