H∞- Static Output Feedback based Load Frequency Control of an Interconnected Power System with Regional Pole Placement

Authors

  • Srikanth Bondalapati Department of Electrical Engineering National Institute of Technology Silchar, Assam, India
  • Rajeeb Dey Department of Electrical Engineering National Institute of Technology Silchar, Assam, India
  • Cornel Barna Aurel Vlaicu University of Arad, Romania
  • Valentina Emilia Balas Aurel Vlaicu University of Arad, Romania

DOI:

https://doi.org/10.15837/ijccc.2024.6.6857

Keywords:

Load Frequency Control (LFC), Restricted SOF controller, Pole Placement, par- ticle swarm optimization (PSO)

Abstract

This paper presents the design of an H-based Restricted Static Output Feedback (RSOF) controller with regional pole placement in Linear Matrix Inequality (LMI) framework for Load Frequency Control (LFC) of a 2-area Interconnected Power System (IPS). The motivation behind the RSOF controller is to develop a controller with a predefined structure for implementing centralized and decentralized control strategy as per need. In this work a new stabilization criterion is developed by choosing circle and strip LMI regions for pole-placement along with the use of Particle Swarm Optimization (PSO) technique to tune the scalar parameters for the feasibility of the developed LMI criterion. The designed controller (both centralized and decentralized structure) with the above modifications improves the transient response of the frequency output. The designed controller is tested on a 2-area LFC model incorporating both conventional and renewable energy sources. Simulation results validate the effectiveness of the designed controller in attenuating disturbance and also enhancing the transient response. A comparative analysis is presented for various controllers, highlighting their performance differences.

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Published

2024-11-01

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