LCL Filter Design of STATCOM using Genetic Algorithm Scheme for SCIG Based Microgrid Operation

Abstract

In a microgrid static Compensator (STATCOM) is the most prominent inverter circuit for stabilizing the bidirectional power flow requirements of the system. This inverter circuit is the primary source of harmonics when the supply current feeds from the microgrid to the main grid. Improved control strategy and proper filter design may give solution to these issues and so, there is a huge scope of research in the field of the converter control techniques and filter designing for such microgrid based power system. The key objectives of this paper are (i) to develop an adequate current control scheme for adjusting real and reactive power fluctuations produced by load time to time, and (ii) to reduce the harmonic level of output characteristics in terms of real and reactive power flow and current frequency. For this, an approach is presented to estimate the filter design parameters for current controlled STATCOM connected to squirrel cage induction generator (SCIG) based microgrid. A nature-inspired optimization namely, genetic algorithm (GA), is implemented to estimate the most suitable parameters for the LCL filter. Results obtained through GA are validated with a conventional mathematical method in terms of real and reactive power flow through microgrid along with harmonic-based studies.

Keywords:

• microgrid
• LCL filter
• sTATCOM
• GA optimization
• power system management

Disclosure statement

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

Data availability statement

The data sources employed for analysis are presented in the text.

Additional information

Funding

This research received no external funding.

Notes on contributors

Nitin Kumar Saxena

Nitin Kumar Saxena, a senior IEEE member, having more than 20 years of experience in engineering teaching, research and administration, 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 Visiting Faculty in University of Denver, USA. He is also associated as Professor (Research) with KIET Group of Institutions, Ghaziabad, India. Before this, he has worked as Associate Professor in Wolaita Sodo University, Ethiopia for 2 years and Head & Assistant Professor (Senior) in Moradabad Institute of Technology, Moradabad, India for 15 years. His broad area of interest includes deregulated power systems, FACTs devices, electric market, ancillary services, computer applications in power system and hybrid power systems.

Anmol Gupta

Anmol Gupta is an Assistant Professor in the Department of Electrical & Electronics Engineering at KIET Group of institutions, Delhi-NCR, Ghaziabad. He is an academician and researcher of having more than 15 years of experience in engineering teaching, and administration. He has received his Ph.D. in the field of Renewable energy sources from National Institute of Technology, Kurukshetra and he has received his M.Tech. and B.Tech. from Rajasthan Technical University, Kota and Uttar Pradesh Technical University, Lucknow respectively. He has published 20+ SCI/SCIE/Scopus/UGC Journals, 18 International/National Conferences, and 2 Books Chapters and he has also guided 3 M.Tech. thesis.

Mohd Faisal Jalil

Mohd Faisal Jalil has more than 10 years of teaching and research experience. He is a Senior Member of IEEE. Currently, he is working as an Assistant Professor in the Electrical Engineering department, Aligarh Muslim University, Aligarh, India. He has also served as Assistant Professor at KIET Group of Institutions, Delhi-NCR, Ghaziabad, India, during 2013–2021. He received his Ph.D. from the Electrical Engineering department, Jamia Millia Islamia (JMI), New Delhi, India. He obtained his B. Tech and M. Tech from the Electrical Engineering department, Aligarh Muslim University, Aligarh, India, in 2010 and 2012, respectively. He has published several research papers in reputed journals and conferences. His research interests include electrical machines, renewable energy systems, and PV systems under partial shading conditions.

Varun Gupta

Varun Gupta completed his B.Tech in Electronics and Communication Engineering from BIT, Meerut in 2007, M.Tech from Dr. B.R. Ambedkar National Institute of Technology (NIT) Jalandhar in 2011 and Ph.D. from National Institute of Technology (NIT) Kurukshetra in 2020. He is serving as an Associate Professor in Electronics and Instrumentation Engineering Department, KIET Group of Institutions, Ghaziabad, India for the last nine years. He has published number of research papers in several reputed international and national journals and along with conferences. He is active reviewer of several journals including IETE Technical Review, IET Signal Processing, IRBM, Analog Integrated Circuits and Signal Processing, Wireless Personal Communications, International Journal of Medical Engineering and Informatics, International Journal of Control and Electrical Engineering, etc. His research includes biomedical signal processing, control system, pattern recognition techniques, soft computing, Edge Computing, LSTM networks, malware detection in medical IoT devices and image processing.

R. C. Bansal

R. C. Bansal has over 25 years of teaching, research, academic leadership, and industrial experience. Currently he is Professor in EE Dept. at University of Sharjah, UAE and Extraordinary Professor at University of Pretoria, South Africa. In previous postings, he was Professor and Group head (Power) at University of Pretoria, and worked with University of Queensland, Australia; USP, Fiji; BITS Pilani, India. Prof. Bansal has published over 400 journal articles, conf. papers, books/book chapters. He has Google citations of over 18000 and h-index of 65. He has supervised 25 PhD and 5 Post Docs. Prof. Bansal has significant attracted significant funding from Industry and Government Organisations. He is an Editor of reputed journals including IEEE Systems Journal, IET-RPG, TESGSE. He is a Fellow, and CP Engg IET-UK, Fellow IE (India), and Senior Member IEEE. He has diversified research interests in the areas of Renewable Energy, Power Systems and Smart Grid.