
Explore the fundamentals of switched reluctance motor and drive, including geometry, inductance profiles, angular parameters, converter topologies, and speed and closed-loop control.
Trace the history and rebirth of switched reluctance motors, from early electric traction to modern magnetless drives enabled by power electronics, controllers, and vehicle applications.
Explore the fundamentals of a six stator by four rotor pole switched reluctance motor, including geometry, rotor-position synchronized phase sequencing (ABC/ACB), rotor dynamics, inductance profiles, flux, and a basic converter.
Explore SRM geometries and topologies from single-phase to multiphase configurations. Learn how topology choices impact startup torque, torque ripple, and converter complexity for specific applications.
Analyze how angular parameters shape the inductance profile in SRM drive, including maximum and minimum inductance, rotor alignment, and the turn-on, dwell, and turn-off angles.
Explore an equivalent circuit model and torque equation for a switched reluctance motor, linking flux linkage, inductance profiles, and energy balance to predict mechanical output.
Explore the torque–speed characteristics of SRMs, showing how maximum torque depends on speed under winding current limits and losses, and how on-angle and dwell-angle control shapes the curve.
Control the speed of a switched reluctance motor by regulating current via duty-cycle PWM and by shaping phase excitation with gate pulses, aligning with inductance profiles and current limits.
Explore open-loop and closed-loop speed control of a switched reluctance motor, using duty-cycle modulation, speed sensing, and current/phase control to stabilize SRM speed.
Explore converter topologies for switched reluctance drives, focusing on cost, efficiency, number of switches, conduction time, and regeneration, with asymmetric and plus-one configurations and their control options.
Learn how electric braking and regenerative braking work in switched reluctance motors, using phase switching and current control to convert kinetic energy into electrical energy and improve efficiency.
Explore position sensors for switched reluctance motors, including cheap optical sensors and encoders. Understand how sensor placement and rotor magnets affect speed and current-control based operation.
Explore the attractions and applications of switched reluctance motors, noting low manufacturing cost, high efficiency, no brushes, compact size, for electric vehicles and domestic washing machines, with control challenges.
Explore torque ripple and acoustic noise in switched reluctance motor drives, and examine how current profiles, phase conduction, and switching frequency affect performance and noise, with mitigation strategies.
Explore the latest research trends in switched reluctance motor drives, including topology reduction, sensor-based sensing arrangements, converter innovations, and mathematical modelling for efficient, cost-effective motors.
Switched Reluctance Motor is one of the oldest electric motor that is competing since 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 most preferable electric motor for latest electric vehicle applications. Recently advanced version of SR technology have been used to power Tesla Model 3 electric car and claimed significant increased in range (efficiency) compared to induction motor used in Model S.
SRM offers numbers of benefit like higher efficiency, less weight, mow cost, reduced manufacturing process time, wide constant power region, fault tolerant operation and superior performance even at comparative higher temperature.
This course explains each and every fundamental detail about switched reluctance motor and drive. Starting from fundamental operation of SRM, it covers extreme detail about each parameters and terms related to Motor, converter as well as 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, torque ripple, acoustic noise etc.
Animation and visualization developed for this course will help in learning with easy.
Hello!,
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 compilation of all the important aspects of switched reluctance motor drive in very well organized manner and easy to understand with visual animations. It will give you the initial boost by clearing your all doubt about switched reluctance motor and drive. Even if you know few basic things about SRM ,I assured that you will learn so many more important things.
Thank you.