An Adaptive Filter Algorithm Based on Hyperbolic Tangent Function for Power Quality Enhancement in Distribution Network

Authors

  • Jeetendra Kumar National Institute of Technology, Jamshedpur, Jharkhand 831014, India
  • Salauddin Ansari National Institute of Technology, Jamshedpur, Jharkhand 831014, India
  • Om Hari Gupta National Institute of Technology, Jamshedpur, Jharkhand 831014, India
  • Arun Kumar Singh National Institute of Technology, Jamshedpur, Jharkhand 831014, India
  • Vijay K. Sood Ontario Tech University, Oshawa, Canada

DOI:

https://doi.org/10.13052/dgaej2156-3306.4012

Keywords:

Power quality, DSTATCOM, distribution network, utility grid, power factor, non-linear load

Abstract

Static compensators (or DSTATCOMs) are commonly used in the integration of renewable energy sources (RES) into the grid to provide a variety of functions such as reactive power compensation, harmonic elimination, zero voltage regulation (ZVR), power factor correction (PFC), grid current balancing, etc. Considering the recent trends on integration of the RES to the grid, an enhanced control structure is needed. In this paper, a hyperbolic tangent function based adaptive filter (HTFAF) is applied for effective operation of the static compensator. This adaptive filter’s (HTFAF) update rule is based on a cosine function and follows the stochastic gradient descent principle. The HTFAF is used to estimate the peak values of the active and reactive segments of load current. These peak values are used to precisely determine reference grid currents. The control structure for the DSTATCOM is designed to provide harmonics-free, sinusoidal, balanced grid currents under both linear and non-linear, as well as balanced and unbalanced loads. Furthermore, the system has the ability of operate in either PFC or ZVR modes. The proposed control structure is also compared with existing control structure LMF and LMS and found to be superior. The MATLAB/Simulink environment is used for the design of a grid-connected DSTATCOM and its control logic. The performance of the system is also validated using the OPAL-RT real-time simulator.

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Author Biographies

Jeetendra Kumar, National Institute of Technology, Jamshedpur, Jharkhand 831014, India

Jeetendra Kumar received his BE degree in Electrical & Electronics Engineering from Anna University, Chennai, Tamil Nadu, India, in 2011 and his MTech degree in Control & Instrumentation from Motilal Nehru National Institute of Technology, Allahabad, Uttar Pradesh, India, in 2016. Presently, he is pursuing a PhD at the Department of Electrical Engineering, NIT Jamshedpur, Jharkhand, India. He is an Assistant Professor in the Department of Electrical Engineering at the Government Engineering College, Bhojpur, India. His areas of interest are renewable energy and power quality enhancement.

Salauddin Ansari, National Institute of Technology, Jamshedpur, Jharkhand 831014, India

Salauddin Ansari received his BE degree in Electrical & Electronics Engineering from Rajiv Gandhi Proudyogiki Vishwavidyalaya, Bhopal, Madhya Pradesh, India, in 2015, and his MTech and PhD degrees from the National Institute of Technology, Jamshedpur, Jharkhand, India, in 2019 and 2024, respectively. He heads the Electrical Engineering Department at Government Polytechnic, Motihari, Bihar, India. His primary research interests include microgrid protection and islanding detection.

Om Hari Gupta, National Institute of Technology, Jamshedpur, Jharkhand 831014, India

Om Hari Gupta earned his PhD in Electrical Engineering from the IIT Roorkee, India, in 2017. He was awarded the prestigious Canadian Queen Elizabeth II Diamond Jubilee Scholarship, enabling him to conduct research at Ontario Tech University, Canada, as a visiting researcher in 2017. Since 2018, Dr. Gupta has been an Assistant Professor in the Department of Electrical Engineering at NIT Jamshedpur, India. Dr. Gupta co-founded the “Electric Power and Renewable Energy Conference (EPREC)” series and has authored/edited seven books. His academic contributions include about 90 publications, with 34 journal papers and one granted patent. He serves on the Springer Nature Journal Scientific Reports editorial board and is a Senior Member of IEEE. Additionally, he is a reviewer for numerous reputed journals, including IEEE Transactions on Power Delivery, Electric Power Systems Research, etc. His research interests encompass power system protection, microgrids, renewable energy-based distributed generation, and electric power quality.

Arun Kumar Singh, National Institute of Technology, Jamshedpur, Jharkhand 831014, India

Arun Kumar Singh has served as a Professor at the Department of Electrical Engineering, National Institute of Technology Jamshedpur, India. He received his B.Sc. (Engg.) from Kurukshetra University, Kurukshetra; M. Tech from the Banaras Hindu University, Varanasi; and PhD in electrical engineering from the Indian Institute of Technology Kharagpur, India. He has over 30 years of teaching experience and has taught subjects like Control Systems, Control & Instrumentation, Power System Operation and Control, Non-Conventional Energy, and Circuit & Network Theory. His primary research interests include control systems, control system applications in different areas & non-conventional energy. Prof. Singh is a Life Member of ISTE and a life fellow of the Institute of Engineers. He has been the Dean of Student Welfare at the National Institute of Technology.

Vijay K. Sood, Ontario Tech University, Oshawa, Canada

Vijay K. Sood obtained his Ph.D. in Power Electronics from the University of Bradford, England in 1977. From 1969–76, he was employed at the Railway Technical Centre, Derby, U.K. From 1976–2007, he was a Senior Researcher at IREQ (Hydro-Québec Research Institute) in Montreal, Quebec. In 2007, he joined Ontario Tech University in Oshawa, Ontario where he is now Professor Emeritus. He is a Member of the Professional Engineers Ontario, a Life Fellow of the Institute of Electrical and Electronic Engineers (IEEE), a Fellow of the Engineering Institute of Canada (EIC) and Emeritus Fellow of the Canadian Academy of Engineering (CAE). His research interests are in the monitoring, control and protection of power systems using artificial intelligence techniques. Dr. Sood has published over 200 articles, 10 book chapters and written numerous books on HVDC Transmission and other topics.

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Published

2025-04-23

How to Cite

Kumar, J. ., Ansari, S. ., Gupta, O. H. ., Singh, A. K. ., & Sood, V. K. . (2025). An Adaptive Filter Algorithm Based on Hyperbolic Tangent Function for Power Quality Enhancement in Distribution Network. Distributed Generation &Amp; Alternative Energy Journal, 40(01), 29–62. https://doi.org/10.13052/dgaej2156-3306.4012

Issue

2025: Vol 40 Iss 1

Section

Articles