Transactions of China Electrotechnical Society  2021, Vol. 36 Issue (2): 258-267    DOI: 10.19595/j.cnki.1000-6753.tces.191604
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Energy Chain Switching Control of a Dual Three-Phase Linear Induction Motor Operating in Non-Periodic Transient Conditions
Han Yi, Nie Ziling, Xu Jin, Zhu Junjie, Rui Wanzhi
National Key Laboratory of Science and Technology on Vessel Integrated Power System Naval University of Engineering Wuhan 430033 China

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Abstract  

A dual three-phase linear induction motor operating in non-periodic transient conditions driven by two independent energy chains has advantages in power level, power density, freedom degree of control and system redundancy. In this paper, a vector control method is given based on the model of dual three-phase linear induction motor with dynamic end effect. According to the operation characteristics of the non-periodic transient system, an energy chain switching control method under the fault operation condition is proposed, which uses the open-loop calculation of the given thrust as the input of vector control. The proposed method can avoid the coupling of the given current change and the output current peak during the transient processes of system fault. Taking the maximum output thrust constraint with dynamic end effect into consideration, it adjusts the given thrust according to the control target, thereby realizing the safe operation of the single energy chain in case of system failures. Simulation and experimental results verified the correctness and feasibility of the proposed control method.

Key wordsDual three-phase linear induction motor      non-periodic transient      dynamic end effect      energy chain switching      maximum output thrust     
Received: 22 November 2019     
PACS: TM359  
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Han Yi
Nie Ziling
Xu Jin
Zhu Junjie
Rui Wanzhi
Cite this article:   
Han Yi,Nie Ziling,Xu Jin等. Energy Chain Switching Control of a Dual Three-Phase Linear Induction Motor Operating in Non-Periodic Transient Conditions[J]. Transactions of China Electrotechnical Society, 2021, 36(2): 258-267.
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