Abstract
The wind-diesel-based isolated hybrid power system requires dynamic reactive power compensation for the fast recovery of voltage under load and input changes. Dynamic compensation techniques give a better voltage response but at a high cost; in contrast, the static compensator reduces the compensation cost by compromising on the voltage response. The use of, both, static as well as dynamic compensators together may give cost-effective reactive power compensation for predefined transient limits of voltage response. This paper presents the pricing of reactive power compensation under steady-state and dynamic conditions of a system with fixed capacitor (FC) and STATCOM. The main contributions of the paper are: (1) evaluation of reactive power compensation using FC as a static and STATCOM as a dynamic compensator, (2) fast recovery of voltage response using genetic algorithm-based tuning of the STATCOM controller's gain constant, (3) evaluation of reactive power compensation cost for steady and dynamic conditions due to change in load and/or input demand, and (4) comparison of responses obtained for the optimized case with a pre-existing reference compensation method.
Additional information
Notes on contributors
Nitin Kumar Saxena
Nitin Kumar Saxena with vast experience in engineering teaching and research has received his Ph.D., M.Tech. and B.E. from National Institute of Technology Kurukshetra, Indian Institute of Technology Delhi and MJP Rohilkhand University Bareilly respectively. Presently, he is working as Associate Professor in College of Engineering at Wolaita Sodo University, Ethiopia, Africa. Before this, he has worked as Head of Department in Electrical Engineering Department at MIT Moradabad in India. He has published number of research papers in several reputed international and national journals and conferences along with books published for Electrical Engineering students. He has been invited as guest speaker for several faculty development programs and career counseling lectures in senior secondary level schools and engineering colleges. He is a life member of the Indian society of Technical education. His broad area of interest includes power systems, FACTS, and hybrid power systems.
Ashwani Kumar
Ashwani Kumar received his Ph.D. from the Department of Electrical Engineering, IIT Kanpur, India in 2003 and his B.Tech. in 1988 and M.Tech. in 1994 from G. B. Pant University, Pant Nagar and PEC Chandigarh, respectively. He did advanced research work from Tennessee Technological University, USA for his postdoctoral fellowship from Jan 2008 to May 2008. He is currently working as a professor in Electrical Engineering Department, NIT Kurukshetra, India. He has published a number of research papers in refereed international/national journals and in proceedings of international/national conferences. His fields of interest are power systems, power systems restructuring, distributed generation and renewable energy systems, facts applications to power systems, demand side management, electricity price forecasting, power system dynamics.