Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

A Novel Power Sliding Mode Control Strategy Based on Disturbance Observer for Permanent Magnet Synchronous Motor

Version 1 : Received: 15 January 2024 / Approved: 17 January 2024 / Online: 17 January 2024 (15:45:08 CET)

How to cite: Huang, H.; Yu, C.; Zhang, Y.; Sun, Z.; Zhao, Z. A Novel Power Sliding Mode Control Strategy Based on Disturbance Observer for Permanent Magnet Synchronous Motor. Preprints 2024, 2024011297. https://doi.org/10.20944/preprints202401.1297.v1 Huang, H.; Yu, C.; Zhang, Y.; Sun, Z.; Zhao, Z. A Novel Power Sliding Mode Control Strategy Based on Disturbance Observer for Permanent Magnet Synchronous Motor. Preprints 2024, 2024011297. https://doi.org/10.20944/preprints202401.1297.v1

Abstract

a sensorless control scheme based on novel power converging law sliding mode observer is suggested to realize the sensorless control for the permanent magnet synchronous motor (PMSM). Firstly, by introducing a new power converging law, the problem of slow converging speed/large chattering value dilemma in the conventional converging law is solved; Secondly, in view of the shortcomings of the conventional position and speed estimation algorithm, the high-frequency buffeting in the sliding mode observer will be expanded, a phase-locked loop (PLL) velocity and position estimation strategy is adopted to replace it. Finally, through Matlab/Simulink modeling and motor speed regulation platform experimental results, the sensorless position and speed estimation technology proposed in this paper can respond to the starting speed command of 1000 r/min within 0.05 s, and the starting process has no overshoot. When disturbed by 10Nm loading, the speed fluctuation value can be controlled within 1%.

Keywords

permanent magnet synchronous motor; sliding mode observer; chattering phenomenon; novel power converging rate

Subject

Engineering, Electrical and Electronic Engineering

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