A Control Strategy for Salient-Pole Permanent Magnet Axial-Gap Self-Bearing Motors Considering Stator Inductance Variation
Received: 21 November 2024 | Revised: 10 December 2024 | Accepted: 18 December 2024 | Online: 2 February 2025
Corresponding author: Quoc Tuan Duong
Abstract
Axial-Flux Self-Bearing Motors (AFBMs) are distinguished by considerable variations in inductance resulting from axial displacement. Conventional controllers are frequently engineered to accommodate a wide range of inductance changes. Nevertheless, this methodology is often suboptimal, particularly when inductance is not accurately determined. This paper puts forward a novel inductance approximation function for the stator, designed to minimize modeling errors. Furthermore, an advanced control strategy is presented, based on a sliding mode controller with online adaptive parameter tuning. The experimental results demonstrate the efficacy of the proposed control strategy, exhibiting enhanced performance, stability, and robustness across a range of operating conditions.
Keywords:
self-bearing motor, Axial-Gap Self Bearing Motor (AGBM)Downloads
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Copyright (c) 2025 Ngo Kien Trung, Duong Anh Tuan, Tran Thuy Van, Vo Quang Vinh, Quoc Tuan Duong

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