Influence of mover yoke and winding connections on unbalanced normal force for double‐sided linear switched reluctance machine. Issue 2 (1st February 2016)

• Record Type: Journal Article
• Authors: Wang, Qianlong; Chen, Hao; Xu, Tong; Yuan, Jinxia; Wang, Jiewei; Abbas, Saleem
• Is Part Of: IET electric power applications. Volume 10:Issue 2(2016)
• Page Start: 91
• Page End: 100
• Publication Date: 2016-02-01
• Subjects: linear machines -- reluctance machines -- finite element analysis -- magnetic circuits -- magnetic flux -- stators -- transient analysis; mover yoke -- winding connection -- unbalanced normal force -- double‐sided linear switched reluctance machine -- mover eccentricity -- DLSRM -- UNF reduction method -- magnetic circuit analysis -- flux distribution -- stator winding connection -- transient two‐dimensional finite element model; Electric power -- Periodicals; Electric power systems -- Periodicals; 621.305
• DOI: 10.1049/iet-epa.2015.0214
• Languages: English
• ISSNs: 1751-8660

Abstract

Abstract : Due to the manufacturing inaccuracies or wear, the mover eccentricity of the double‐sided linear switched reluctance machine (DLSRM) is practically inevitable, which gives rise to undesirable unbalanced normal force (UNF). This study investigates the UNF reduction methods in the eccentric DLSRM. According to the finite element analysis and magnetic circuit analysis, the flux distributions and the UNF of the healthy and eccentric DLSRM are compared, and it is proved that removing the mover yoke can alleviate the UNF in the eccentric situation. Furthermore, the effects of the stator winding connections on UNF are analysed via a transient two‐dimensional finite element model. It shows that the UNF can also be reduced by connecting the coils of the windings in parallel. For verifying the two proposed methods, a prototype experimental platform is established, and the experimental results validate the analyses.