Single Stage Power Control Strategy for Nanogrid Connected Solar PV System

  • Rakesh Namani Department of EE, Rajiv Gandhi University of Knowledge Technologies, Basar, Telangana, India
  • Babu Natarajan Department of EEE, National Institute of Technology, Tiruchirappalli, Tamilnadu, India
  • Senthilkumar Subramaniam Department of EEE, National Institute of Technology, Tiruchirappalli, Tamilnadu, India
  • Madhusudanan Gurusamy Department of EEE, SRM Valliammai Engineering College, Chengalpattu, Tamilnadu, India
Keywords: Single stage power conversion, nanogrid, decoupled control strategy, maximum power point tracking, DC-AC inverter

Abstract

The focus on reduction of converter size in nanogrid connected Photo-Voltaic (PV) systems increases to obtain the various advantages. This paper proposes a single stage nanogrid connected solar PV system that works with DC-AC inverter along with the closed loop control strategy to send the maximum power from the PV array. The proposed scheme controls the power delivery of the PV system to nanogrid in a single stage power conversion along with the incorporated Maximum Power Point Tracking (MPPT) controller. The decoupled control strategy has been designed and developed for the proposed system using synchronous reference frame theory. The developed hardware prototype in the laboratory has been used to validate MATLAB/Simulink simulation results. The simulation and experimental results have been observed for dynamic changes in irradiation by maintaining the Total Harmonic Distortion (THD) within the standard limits while operating at unity power factor. The successful validation of the proposed control strategy shows its usefulness in real-time nanogrid applications.

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Author Biographies

Rakesh Namani, Department of EE, Rajiv Gandhi University of Knowledge Technologies, Basar, Telangana, India

Rakesh Namani received his B.Tech degree in Electrical and Electronics Engineering from Kakatiya University, Warangal, Telangana, India, in 2008. He received his M.S (by Research) degree in Electrical and Electronics Engineering from the National Institute of Technology, Tiruchirappalli, Tamilnadu, India, in 2013. From June 2013 to February 2016, he served as an Assistant Professor with the Department of Electrical and Electronics Engineering, Kakatiya Institute of Technology and Science, Warangal, Telangana, India. From March 2016 to till date, he is working as an Assistant Professor with the Department of Electrical Engineering, Rajiv Gandhi University of Knowledge Technologies, Basar, Telangana, India. His research interests include power electronics applications in renewable energy systems, grid-connected PV systems, and power enhancement of PV arrays.

Babu Natarajan, Department of EEE, National Institute of Technology, Tiruchirappalli, Tamilnadu, India

Babu Natarajan received his M. Tech. degree in Embedded System technologies from Anna University, Tiruchirappalli, India. He is currently pursuing his Ph. D. degree at Nation Institute of Technology, Tiruchirappalli, India. His areas of interest include electrical drives, control and applications of power electronics in renewable energy systems.

Senthilkumar Subramaniam, Department of EEE, National Institute of Technology, Tiruchirappalli, Tamilnadu, India

Senthilkumar Subramaniam received the B.E. degree in Electrical and Electronics Engineering from Madurai Kamaraj University, Madurai, India, in 1999, the M.Tech. degree in Electrical Drives and Control from Pondicherry University, Puducherry, India, in 2005, and the Ph.D. degree in Electrical Engineering from the National Institute of Technology, Tiruchirappalli, India, in 2013. He has 20 years of teaching experience at various engineering institutions. He is currently working as an Associate Professor with the National Institute of Technology. He has extensively researched on self-excited induction generators for standalone and grid-connected applications. His current research interests include the development of new power converter topologies for renewable energy systems and intelligent transportation systems.

Madhusudanan Gurusamy, Department of EEE, SRM Valliammai Engineering College, Chengalpattu, Tamilnadu, India

Madhusudanan Gurusamy received his Bachelor’s Degree in Electrical and Electronics Engineering from Bharathidasan University, Trichy, Tamil Nadu, India in the year 1997. He received his M.E. Degree in Power Electronics and Drives from Bharathidasan University, Tiruchirappalli during the year 2000. He received his Ph.D. degree in Electrical Engineering from National Institute of Technology, Tiruchirappalli in the year 2020. He has been working with the Department of Electrical Engineering, SRM Valliammai Engineering College, affiliated to Anna University, Chennai, India, since 2000. His research interests include Power Electronic Controllers for Renewable Energy System, Energy storage and Battery management system.

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https://www.irena.org/publications/2020/Dec/Quality-infrastructure-for-smart-mini-grids.

Published
2022-02-22
Section
SPECIAL ISSUE: Energy Access & Off-Grid Systems for Residential Microgrids/Nanog