Switched Reluctance Motor (SRM) Development
The Centre for System Design (CSD) at NITK Surathkal is actively engaged in the research and development of Switched Reluctance Motors (SRMs) as a sustainable and cost-effective alternative to traditional BLDC motors for electric vehicles (EVs). This project aims to address the high costs associated with permanent magnet (PM)-based motors by developing innovative SRM solutions that are robust, fault-tolerant, and magnet-free.
Featured Images
Explore our collection of stunning images showcasing our products and services.
SRM Design and Prototyping
Inner Rotor Standard SRM (2 kW)
Designed for E-Rickshaw applications, this motor leverages rugged and reliable SRM technology to enhance the durability and performance of small commercial EVs.
Outer Rotor Hub Motor (0.5 kW)
Targeted for E-bicycles, this lightweight and compact hub motor offers efficient and cost-effective mobility solutions.
SRM Controller Design
CSD has developed controllers capable of driving motors up to 600V and 40A. These controllers are designed in-house to be modular and cost-effective, utilizing industrial IGBT modules and novel configurations to meet the needs of four-phase motors.
- Modular and cost-effective design
- Industrial IGBT modules
- Adaptable to different motor requirements
- Expertise in MCUs, DSPs (STM, TI), and FPGA-based solutions
Control Algorithms and Sensor Integration
Control Algorithms
- Hysteresis Current Control
- Voltage PWM
- Soft and Hard Chopping Algorithms
- FPGA controllers for precision and versatility
- MCUs and DSPs from STM and Texas Instruments
Sensor Integration
The team has experimented with diverse rotor position sensors (hall effect, IR, magnetic rotary) and integrated current sensors to refine motor control and enhance performance.
Key Features:
- Multiple sensor types supported
- Enhanced motor control precision
- Improved overall performance
SRM Testing Facilities
Eddy Current Dynamometer
For motor loading
Torque Sensors and Encoders
For accurate torque and speed measurements
Oscilloscopes and Thermal Imagers
For comprehensive performance analysis
SRM Project Details
.jpg%3Fheight%3D300%26width%3D400&w=828&q=75)
Project Overview
Our SRM (Switched Reluctance Motor) project aims to develop an alternative to BLDC motors for Electric Vehicles, supporting the 'Atmanirbhar Bharat' initiative. We're focusing on applications for 2-Wheeler and 3-Wheeler EVs, utilizing advanced software and partnering with industry leaders.
Project Cost: ₹16.98 Crores
Funding Agency: Ministry of Heavy Industries
Industrial Partner: Aditya Auto Pvt Ltd., Bangalore
Software Used: Electromagnetic Finite Element Analysis, MATLAB, and CAD
Project Status: Completed
Outcome: Two prototype SRMs (for E-Rickshaw and E-Cycle) fabricated and tested, with a controller developed
Future Scope: Implementation of SRM technology at the vehicle level, paving the way for more efficient and cost-effective electric vehicles in India.