Open AccessPerformance comparison and optimisation of dual mover linear permanent magnet flux switching machine
Author(s) -
Ullah Noman,
Khan Faisal,
Basit Abdul,
Ullah Wasiq,
Shahzad Mohsin,
Ahmad Tanvir,
Khalid Usman
Publication year - 2019
Publication title -
iet electric power applications
Language(s) - English
Resource type - Journals
ISSN - 1751-8679
DOI - 10.1049/iet-epa.2018.5820
Subject(s) - thrust , stator , magnet , network topology , finite element method , control theory (sociology) , linear motor , topology (electrical circuits) , magnetic flux , engineering , mechanical engineering , computer science , physics , structural engineering , electrical engineering , magnetic field , artificial intelligence , control (management) , quantum mechanics , operating system
Short moving primary and rigid low‐cost secondary are important requirements of linear machines designed for long stroke applications. In the race, linear permanent magnet flux switching machine (LPMFSM) is a competitive candidate by confining excitation sources to short mover, thus making stator robust and low cost (made of only iron). However, single‐sided LPMFSM exhibit a demerit of high normal (attraction) force due to its topology. In order to rectify the problem and enhance thrust force profile, two novel double‐sided LPMFSMs are proposed with dual stator and dual mover topologies. After stator pole study, both topologies with same design dimensions are analysed and compared by 2‐D finite element method here. Detailed analysis revealed that 12/14 DMLPMFSM exhibit low numerical values of thrust force ripples and detent force while maintaining average thrust force value. Hence, 12/14 DMLPMFSM is selected and optimised by structure‐based deterministic optimisation (SBDO) approach to further enhance thrust force profile. Finally, comparison of initial and optimised design of 12/14 DMLPMFSM is presented to validate optimisation procedure.