The group started its activities in 1975 with the development of Inverters, Drives and Power supplies with Analog controllers for various industrial applications. In the early eighties, the group gained the expertise in Digital control techniques and Microprocessor based controllers, replacing analog controllers with superior digital controllers. Further the group entered into the development of PWM inverters with V/F control strategy. Competing with international scenario, Vector control technology was successfully developed by the group and AC drives were developed using this technology and IGBT inverters way back in the year 1990. When Power Quality improvement techniques started gaining more and more importance, the group has developed the hardware and the control algorithms for various PQ solutions like Harmonic compensators, STATCOMs, Unified Power Quality Controllers etc. The technology for the Active Front-end Converter, which can be configured as the front end of a UPS systems, Battery chargers and AC drives was transferred to a number of Indian industries. Similarly, Static VAR Compensator was successfully developed and demonstrated in industrial environment and was later offered to industry for commercialization. Another important and successful development is the development of Power Controllers for Hybrid Electric Vehicle in collaboration with leading vehicle manufacturers. Grid Interactive Inverters for Tapping Solar Energy, Automotive Electronics and Networking the systems using CAN bus, Multilevel High Power Inverters, Medium Power AC motor Drives, Power Electronics Building Blocks, Switched Mode Power Converters, Real time simulators etc. were developed in par with the state of the art technology development. The intelligent digital controllers using DSPs, Microprocessors / Micro-controllers and FPGAs / ASICs were developed for implementation of superior and complex control techniques for Power electronic systems.
