Design and Analysis of a New Improved Force Linear Switched Reluctance Motor for Transit Application

Abstract

Linear Motors are potential candidates for replacing traditional rotary motors in high-speed transit systems. Linear Switched Reluctance Motor (LSRM) is the widely researched motor for such applications. This paper presents a design for linear switched reluctance motor (LSRM) with an improved propulsion force profile. The proposed motor consists of moving translator for direct drive transmission, without the use of mechanical gears. The stator contains a split-teethed stator structure. The proposed motor has more translator teeth than stator teeth. This paper includes a new design methodology for the proposed combination of stator and translator. The motor is designed and analyzed using 3-D finite-element method (FEM). The proposed motor has been optimized using a parameter-based cumulative deterministic optimization algorithm (PBCDOA) for further improving the force profile. The FEM results demonstrate the effectiveness of the design procedure and better force performance of the proposed topology.

KEYWORDS:

• Finite-element analysis
• High-speed transit system
• Linear motor design
• Linear switched reluctance motor
• Propulsion force
• The split-teethed stator

Additional information

Notes on contributors

Nisha Prasad

Nisha Prasad received her BE degree in electrical engineering and MTech degree in electrical drives from Maulana Azad National Institute of Technology (MANIT), Bhopal, India, in 2000 and 2012, respectively. Currently, she is working towards her PhD degree at MANIT, Bhopal, India. Her fields of interest are linear motor drives, use of power electronics in transit systems, high-speed transportation technology and traction propulsion technology. Corresponding author. E-mail: [email protected]

Shailendra Jain

Shailendra Jain received his BE degree from Samrat Ashok Technological Institute, Vidisha, India, in 1990, ME degree from Shri Govindram Seksaria Institute of Technology and Science, Indore, India, in 1994 and PhD degree from the Indian Institute of Technology, Roorkee, India, in 2003. He was a postdoctoral Fellow at the University of Western Ontario, Canada, in 2007. He is a professor in the Department of Electrical Engineering at Maulana Azad National Institute of Technology, Bhopal, India. Prof Jain is currently working as director, SLIET Longowal, Punjab (Deemed-to-be-University, under MHRD). His fields of interest include power electronics, electrical drives, active power filters, fuel-cell technology and high-power factor converters. E-mail: [email protected]

Sushma Gupta

Sushma Gupta received her BE degree in 1993 and the ME degree in 1999 from Barakatullah University, Bhopal, India. She was a lecturer in the Department of Electronic Engineering, Government Engineering College, Rewa, India. She received her PhD degree from Indian Institute of Technology, Delhi. Her main research interests are power electronics, machines, digital electronics microprocessors and self-excited induction generators. E-mail: [email protected]