Sliding mode control for permanent magnet synchronous motor of sensor-less considering time-varying disturbance
To solve the degradation in control performance of permanent magnet synchronous motors (PMSMs) due to uncertainties from parameter perturbation, as well as the problems arising from the speed sensor, such as high cost, demanding environmental requirements and deficient accuracy of estimation, this p...
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| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | zho |
| Published: |
Editorial Department of Electric Drive for Locomotives
2023-01-01
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| Series: | 机车电传动 |
| Subjects: | |
| Online Access: | http://edl.csrzic.com/thesisDetails#10.13890/j.issn.1000-128X.2023.01.012 |
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| Summary: | To solve the degradation in control performance of permanent magnet synchronous motors (PMSMs) due to uncertainties from parameter perturbation, as well as the problems arising from the speed sensor, such as high cost, demanding environmental requirements and deficient accuracy of estimation, this paper proposed an adaptive non-singular fast terminal sliding mode control strategy for PMSMs of sensor-less speed regulation based on the adaptive square root generalized high-order cubature Kalman filter (ASRGHCKF) algorithm. A mathematical model of PMSM was first established under parameter perturbation, and an adaptive non-singular fast terminal sliding mode control algorithm (ANFTSMC) was designed depending on the extended sliding mode disturbance observer (ESMDO). A novel exponential reaching law was selected to adaptively adjust the approach speed depending on the distance of the system from the sliding surface while the unknown disturbance of the system was accurately observed by ESMDO in real time. Finally, the speed and rotor position of the motor were estimated accurately, in combination with ASRGHCKF. Based on the simulation and semi-physical experiment results in comparison with PI control and the traditional sliding mode control (SMC) algorithm, the strategy under the current study was proven with better transient stability performance under motor parameter perturbation, benefiting to improving the sensor-less control effect of PMSM. |
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| ISSN: | 1000-128X |