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Fundamentals of Switched Reluctance Motor & Drive

Everything you need to know about working of switched reluctance motor, its parameters, torque-speed characteristics, converter and control.

Language: English

Instructor: Dr. Jignesh Makwana

Why this course?


Switched Reluctance Motor is one of the oldest electric motors that is competing for 180 years. Availability of sophisticated and economical power electronics technology gave rebirth to the most efficient and robust motor -SRM.  Due to higher efficiency, magnet-less operation, and simple mechanical structure, SRM becomes the most preferable electric motor for the latest electric vehicle applications. Recently advanced versions of SR technology have been used to power Tesla Model 3 electric car and claimed a significant increase in range (efficiency) compared to that of the induction motor-based Model S.

SRM offers many benefits like higher efficiency, less weight, low cost, reduced manufacturing process time, wide constant power region, fault-tolerant operation, and superior performance even at a comparatively higher temperature.

This course explains every fundamental detail about switched reluctance motor and drive. Starting from the fundamental operation of SRM, it covers detail about each parameter and terms related to motor, converter as well as a controller. It includes SRM geometries, magnetic characteristics, inductance profile, angular parameters, torque equation, torque-speed characteristics, converter topologies, speed control, closed-loop control, braking, regeneration, and more.


I am Dr. Jignesh Makwana. I am  working of SRM since 2005 and my first research paper on SRM converter  was published in 2008. Then after I have published numbers of research  articles on SRM in various journals, conferences and books. Other than  theory and publications, I have worked intensively on SRM hardware as  well as simulations. I have also provided consultancy service to the  industry for designing and manufacturing SRM, converter and controller.

This fundamental course is a compilation of all the important aspects of switched reluctance motor drive in a very well-organized manner and easy to understand with visual animations. It will give you the initial boost by clearing all your doubts about switched reluctance motor and drive. Even if you know few basic things about SRM, I assured you that you will learn so many more important things from this course.

Course Summary

Who this course is for:

  • This course is suitable to those who want to start their research career in the area of switched reluctance motor drive.

  • And for those who want to understand every detail about switched reluctance motor drive.

  • This course is recommended to UG and PG students of Electrical Engineering and power electronics engineering.

  • This course is also recommended to those who are interested or working with electric vehicle system.

What you'll learn

  • Understand how switched reluctance motor works

  • How to select optimum turn-on and turn-off angle for particular application

  • How to select best motor geometry and numbers of phase for particular application

  • Understand how power electronics converter of SRM works

  • Derive equivalent circuit, & torque speed characteristics

  • Understand how to control speed of SRM by various techniques

  • Understand what is magnetic characteristics and inductance profile

  • Understand complexity of selecting optimum angles control due to magnetic non-linearity

  • Learn different position sensing arrangement

  • Understand torque ripple and acoustic noise


  • Basics of power and energy forms related to electrical as well as mechanical system

  • Basics of electric & magnetic circuit

Course Curriculum

Ch. 1: Introduction:

1.1: Course Introduction

1.2: Forward to The Past with SRM

Ch 2: Fundamentals of SRM

2.1: Fundamentals of Operation

2.2: SRM Geometry & Types

2.3: Important Angular parameters of SRM

2.4: Equivalent Circuit & Torque Equation

2.5: Torque Speed Characteristics

Ch 3: Converter & Control of SRM

3.1: Speed Control of SRM

3.2: Closed Loop Speed Control of SRM Drive

3.3: Converters Topologies

3.4: Electric Braking & Regeneration

3.5: Position Sensing Arrangement

Ch 4: Latest Research Trends & Applications of SRM

4.1: Attractions Application & Issues

4.2: Torque Ripple and Acoustic Noise

4.3: Latest Research Trend




Course Preview

Course Instructor

IMG_20180629_025448 - Copy.jpg

Ph.d, IIT Roorkee

In 2013, Dr. Jignesh Makwana earned a Ph.D. in Electrical Engineering from the Indian Institute of Technology Roorkee. Since the previous 15 years, he has been teaching power electronics, electric drives, control systems, and other subjects in engineering colleges. From 2013 until 2017, he was an associate professor and the head of the Electrical Engineering Department at Marwadi University in Rajkot. He currently works as a product design and development consultant for a number of firms in the fields of electric drives and power electronics. He also assists numerous reputable universities in developing engineering curricula and syllabuses as a BOS member.

See what others have to say.....


"Very nice explanation and cover all basics of Switched Reluctance motor. Good for who want learn about SRM"

- Sandeep Bhisade


"Excellent explanation and demonstration with MATLAB"

- Pranita chavan


- Raed Alnafra


- Arko Banerjee


- Geethamahalakshmi G

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