Speed Range Extension of Dual-Stator PM Machine Using Multi-Mode Winding Switching Strategy

Shukang Lyu, Hui Yang (), Heyun Lin, Hanlin Zhan and Chaohui Liu
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Shukang Lyu: School of Electrical Engineering, Southeast University, Nanjing 210096, China
Hui Yang: School of Electrical Engineering, Southeast University, Nanjing 210096, China
Heyun Lin: School of Electrical Engineering, Southeast University, Nanjing 210096, China
Hanlin Zhan: School of Mechanical Engineering and Automation, Harbin Institute of Technology, Shenzhen 518055, China
Chaohui Liu: National New Energy Vehicle Technology Innovation Center (NEVC), Beijing 100176, China

Energies, 2022, vol. 15, issue 18, 1-15

Abstract: In this paper, a novel winding switching (WS) strategy is proposed for the speed range extension of a dual-stator permanent magnet machine (DS-PMM), which can achieve simple and effective dynamic mode conversion over an entire operating region. Two types of WS circuits with an inverter and two switch groups were first designed to enable the winding reconfiguration of the machine, which could operate in three modes. The WS principle was then elucidated by introducing simplified equivalent circuits. Besides, the torque–speed curves of the machine under different operating modes were analyzed, based on the mathematical model. A speed-based WS controller was, subsequently, designed to generate the WS control signal and realize the multi-mode operation according to real-time operating conditions. The feasibility of the proposed WS strategy for extending the speed range of the DS-PMM was, finally, verified by experiments.

Keywords: dual stator; flux weakening; permanent magnet machine; speed range extension; winding switching (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2022
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