Implementation and analysis of mono inverter-battery configuration for wind driven doubly fed induction generator

ABSTRACT

This paper investigates the controller implementation and analysis of Doubly Fed Induction Generator (DFIG) for powering isolated loads in rural electrification. A simple speed sensorless algorithm-assisted controller for isolated power supply of DFIG has been proposed using a digital controller and voltage source converter at the rotor terminals of the generator. The controller can automatically correct the voltage and frequency of the rotor side inverter pulse to obtain a desired voltage and frequency at stator side despite the variations in the wind speed and load. A hardware prototype of the system has been built and tested on a prototype machine, which is driven by an emulated wind turbine under sub-synchronous and super-synchronous speed operations. The detailed results of both simulated and hardware waveforms are provided in the paper to demonstrate the working of the proposed topology and embedded control scheme. Further, the performance characteristics of DFIG are modeled and verified experimentally. A good agreement exists between theoretical and experimental results.

KEYWORDS:

• Wind energy
• energy conversion
• renewable energy
• power conversion
• power control

Disclosure statement

No potential conflict of interest was reported by the author(s).

Additional information

Notes on contributors

Kaleeswari Muthusamy

M. Kaleeswari earned her B.Eng. degree in Electrical and Electronics Engineering from Anna University, Chennai, India, in 2013, and followed it up with an M.Eng. degree in Power Electronics and Drives from Anna University, Chennai, in 2015. She is presently pursuing a Ph.D. with Anna University, Chennai. Prior to this, she served as an assistant professor at Poornima University, Jaipur. Kaleeswari is a consultant for various EV companies, providing guidance on the design of power electronics converters. Her extensive research output comprises over 10 publications in international refereed journals and conference proceedings. She is keenly interested in green energy conversion systems, EVs, power electronics converters, and their applications to renewable energy systems.

Madheswaran Muthusamy

M. Madheswaran received his Ph.D. in Electronics Engineering from the Institute of Technology, Banaras Hindu University, Varanasi in 1999. He also holds an M.E. in Microwave Engineering from Birla Institute of Technology, Ranchi. In 1994 and 1996, he was awarded the Young Scientist Fellowship by the Tamil Nadu State Council for Science and Technology and the Senior Research Fellowship by the Council for Scientific and Industrial Research, New Delhi, respectively. Prof. Madheswaran has authored approximately 100 research papers in both international and national journals and conferences. He has presented research papers at conferences in the USA, Japan, Singapore, and Malaysia. His areas of interest include semiconductor devices, microwave electronics, optoelectronics, and signal processing. He has also held various administrative positions at top-level institutions in India and is currently serving as the principal at Muthayammal Engineering College in Rasipuram, India. Prof. Madheswaran is a member of several professional societies, including IEEE, SPIE, IETE, ISTE, the VLSI Society of India, and the Institution of Engineers (India).