Work

Research on a novel adaptive sliding mode observer sensorless control for dual three-phase permanent magnet synchronous motors

Year: 2025

Type: article

Abstract: To mitigate the problems of signal distortion and high-frequency chattering in dual three-phase permanent magnet synchronous motor (DTP-PMSM) caused by conventional sliding mode observers (SMO) and low-pass filters (LPF), this study introduces an innovative sensorless control algorithm based on a novel adaptive SMO (NASMO). This algorithm takes into account the inductive coupling between the two winding sets of the DTP-PMSM and introduces an easily implementable new switch function to replace the traditional discontinuous switch function. Additionally, an adaptive SMO gain strategy is proposed, allowing the SMO gain to adjust according to current-related variables, ensuring fast convergence of the observer and reducing chattering. Compared to existing SMOs, this method eliminates the need for filtering and lower position estimation deviation, effectively suppresses chattering, meanwhile reduces estimation errors in rotor position, rotor speed as well as α-β axis currents. The outcomes from both simulations and experiments further validate the enhanced performance of the NASMO algorithm.

Source: Results in Engineering

DOI: 10.1016/j.rineng.2025.105709

Authors: Wenyu Bai, Junyang Cai, Yun Kuang, Yawen Wang, Xia Hua, Zhimin Ma

Institutions: Zhejiang University of Technology, The University of Texas at Arlington

Language: English

Topic: Sensorless Control of Electric Motors

Subfield: Electrical and Electronic Engineering

Field: Engineering

Domain: Physical Sciences

SDG: Industry, innovation and infrastructure

Open Access status: gold

Estimated APC paid: $1,940