Open AccessSwitched reluctance motor design for electric vehicles based on harmonics and back EMF analysis
Author(s) -
Bukhari Abid Ali Shah,
Alalibo Belema Prince,
Cao Wenping,
Lin Zhengyu,
Shaikh Shahid Hussain,
Soomro Toufique Ahmed,
Ansari Shahzeb,
Jandan Fayyaz Ali
Publication year - 2019
Publication title -
the journal of engineering
Language(s) - English
Resource type - Journals
ISSN - 2051-3305
DOI - 10.1049/joe.2018.8194
Subject(s) - switched reluctance motor , reluctance motor , torque , harmonics , magnetic reluctance , magnet , torque density , computer science , automotive industry , automotive engineering , finite element method , electric motor , voltage , control theory (sociology) , rotor (electric) , engineering , electrical engineering , physics , structural engineering , control (management) , artificial intelligence , thermodynamics , aerospace engineering
Permanent magnet synchronous motors are widely accepted in automotive applications. The high torque density, high rotational speed with maximum efficiency in electric vehicle applications is technically challenging for motor design. However, these machines are expensive and difficult to work at high‐temperature harsh environment due to permanent magnets demagnetisation features. Alternatively, switched reluctance motors can provide similar output characteristics and a wider speed. Thus these are considered to be more fault tolerant and more reliable. This study proposes a 20 kW, three‐phase switched reluctance motor and analyse its overall performance and harmonic contents. The study is conducted by optimising the slot filling factor, excitation voltage and switching sequence of an asymmetrical half bridge converter. A finite element model is used to predict the core and copper losses and other influencing parameters. Simulation results are presented and analysed the effectiveness of the proposed switched reluctance motor (SRM).