NDLI: Fault-Tolerant Control of Paralleled-Voltage-Source-Inverter-Fed PMSM Drives

Content Provider	IEEE Xplore Digital Library
Author	Zheng Wang Jian Chen Ming Cheng Yang Zheng
Copyright Year	1982
Abstract	The aim of this paper is to study the fault-tolerant control strategies when faults occur in paralleled-inverter-fed permanent-magnet-synchronous-motor drives. Different from removing the faulty inverter channels completely, this paper proposes and compares three fault-tolerant control strategies, which fully use all the healthy phase legs, including those in faulty inverters. The three schemes are called “normal channel direct compensation,” “normal channel asymmetric currents,” and “equivalent current value compensation,” respectively. The proposed control schemes not only provide smooth torque but also have smaller copper loss under open-circuit faults. The corresponding principles and design criteria of control are given. Moreover, the proportional-resonant current controller is designed to track the asymmetrical current references of fault-tolerant control and avoid the possible circulating currents among paralleled inverter channels. The experiments are given to verify and compare the performance of the proposed fault-tolerant control schemes.
Sponsorship	IEEE Industrial Electronics Society
Starting Page	4749
Ending Page	4760
Page Count	12
File Size	2255091
File Format	PDF
ISSN	02780046
Volume Number	62
Issue Number	8
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2015-01-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Inverters Fault tolerance Fault tolerant systems Torque Copper Circuit faults Legged locomotion copper loss Fault tolerant control permanent magnet synchronous motor drive paralleled inverters torque ripple Copper loss fault-tolerant control permanent-magnet synchronous motor (PMSM) drive
Content Type	Text
Resource Type	Article
Subject	Control and Systems Engineering Electrical and Electronic Engineering Computer Science Applications

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