Modular stator switched reluctance motor for fault tolerant drive systems

• Published in: IET electric power applications Vol. 7; no. 3; pp. 159 - 169
• Main Authors: Ruba, Mircea, Viorel, Ioan-Adrian, Szabó, Loránd
• Format: Journal Article
• Language: English
• Published: London The Institution of Engineering and Technology 01.03.2013; Institution of Engineering and Technology; The Institution of Engineering & Technology
• Subjects: Applied sciences; coils; Construction; Electrical engineering. Electrical power engineering; Electrical machines; Exact sciences and technology; Fault tolerance; fault tolerant drive systems; finite element analysis; gearbox; load; Mathematical analysis; mathematical model; Mathematical models; Miscellaneous; Modular; modular stator; Motors; Reluctance; reluctance motor drives; safety‐critical drive; SRM; Stators; switched reluctance motor; modular stator; fault tolerant drive systems; fault tolerance; coils; safety-critical drive; switched reluctance motor; finite element analysis; SRM; stators; load; mathematical model; gearbox; reluctance motor drives; Mutual coupling; Stator; Reluctance motors; Synchronous motor; Dimensioning; Finite element method; Switching conditions; Electric motor; Safety; Mathematical model; Comparative study; Fault tolerant system; Gear box
• ISSN: 1751-8660; 1751-8679; 1751-8679
• DOI: 10.1049/iet-epa.2012.0140

A modular stator switched reluctance motor (SRM) for fault tolerant drive systems is proposed. Owing to the particular construction of the stator there is no mutual coupling between adjacent phases. Hence, the motor can work also when a part of the coils is faulted and the faulted modules can be replaced without uncoupling the machine from the load or gearbox. The sizing particularities are presented and the mathematical model of the motor is developed. The results obtained via finite element analysis are compared with the analytical ones, and with that resulting after testing the constructed laboratory model. All these prove that the proposed SRM can be used in safety–critical drives.