International Journal of Power Electronics and Drive Systems (IJPEDS) Vol. 14, No. 1, March 2023, pp. 111~122 ISSN: 2088-8694, DOI: 10.11591/ijpeds.v14.i1.pp111-122  111 Journal homepage: http://ijpeds.iaescore.com Modelling methods and structure topology of the switched reluctance synchronous motor type machine: a review Norrimah Abdulah 1,2,3 , Fairul Azhar Abdul Shukor 1,2 , Raja Nor Firdaus Kashfi Raja Othman 1,2 , Suhairi Rizuan Che Ahmad 4 , Nur Ashikin Mohd Nasir 1,2 1 Faculty of Electrical Engineering, Universiti Teknikal Malaysia Melaka (UTeM), Melaka, Malaysia 2 Electrical Machine Design, Power Electronics and Drives Research Group, CeRIA, UTeM, Melaka, Malaysia 3 Electrical Section, Universiti Kuala Lumpur – Malaysia France Institute (UniKL MFI), Bandar Baru Bangi, Malaysia 4 Electrical Section, Universiti Kuala Lumpur – Malaysia British Institute (UniKL BMI), Kuala Lumpur, Malaysia Article Info ABSTRACT Article history: Received Mar 11, 2022 Revised Nov 1, 2022 Accepted Nov 13, 2022 The switched reluctance synchronous motors (SRSM) have been utilised as replacements for induction motors (IM) and permanent magnet synchronous motors (PMSM). The SRSM is a feasible solution for electric motors because of its robust and straightforward structure, resulting in low maintenance, manufacturing, and operating costs. However, the SRSM has several flaws, including low mean torque, low torque density and excessive torque ripples. The SRSM performance can be improved by considering the structure topology and driving system. This paper reviewed the performance characteristic of SRSM based on the structural topology. Several literature studies on the segmented structure topologies of SRSM were compared with the conventional structures. The performance of the SRSM can be estimated by using either numerical or analytical methods. The FEA and BEM are numerical techniques extensively used to optimise electrical motor performance. Although the numerical method can accurately estimate motor performance, the significant drawback is quite complicated, time- consuming, and difficult to implement the control algorithm with FEA software. However, the analytical method, especially the MEC method, is faster in evaluating motor performance and significantly reduces computational complexity, either with or without solving high-dimensional system matrices. Keywords: Analytical analysis Electromagnetic analysis Magnetic equivalent circuit Mathematical modelling Numerical analysis Segmented structure Switched reluctance motor This is an open access article under the CC BY-SA license. Corresponding Author: Fairul Azhar Abdul Shukor Faculty of Electrical Engineering, Universiti Teknikal Malaysia Melaka (UTeM) Hang Tuah Jaya, Durian Tunggal, 76100 Melaka, Malaysia Email: fairul.azhar@utem.edu.my 1. INTRODUCTION Several substantial research on implementing electric motors in industrial and domestic applications have been undertaken in the last few years. For industrial electric motors and household application systems, there are numerous options. The first candidate is an induction motor (IM) equivalent to an electric motor's rotation type but has low power performance [1], [2]. The second option is the permanent magnet synchronous motor (PMSM) [3], [4]. Although the PMSM is a high-performing electric motor, its main drawback is the cogging torque, which affects the position tracking and control [5]. Furthermore, the properties of the permanent magnet (PM) vary with temperature. If the PM is operated at temperatures higher than the curie temperature, the magnetisation may be lost [3], [4].