A Hybrid Stability Index and Harris Hawks Optimization for the Optimal Reallocation of Generators in the Presence of SVC

Authors

  • J. Ayyappa Research Scholar, Department of Electrical and Electronics Engineering, Annamalai University, Annamalai Nagar, Chidambaram, Tamil Nadu, India
  • N. Jayakumar Assistant Professor, (Deputed from Annamalai University) Lecturer, Dept. of EEE Government Polytechnic College, Ariyalur. Tamil Nadu, India.
  • A. Srinivasa Reddy Professor & HOD, EEE Dept., Sir C. R. Reddy College of Engineering, Eluru, India.

DOI:

https://doi.org/10.63278/1478

Keywords:

Hybrid Stability Index (HSI), Harris hawks optimization (HHO), Static VAR Compensator (SVC), Generator Tuning, Power System Optimization, Voltage Stability, Multi-Objective Function, L-index, Vi/Vo Index, IEEE 30-Bus System, Contingency Analysis, Flexible AC Transmission System (FACTS).

Abstract

Increasing system efficiency and dependability in a very competitive power market depends on best use of available resources.   This work offers a hybrid approach for generator tuning and Static VAR Compensator (SVC) placement selection to enhance system performance. The perfect generator settings are found using the Harris Hawks optimization (HHO) method; a hybrid stability index (HSI) is then used to choose the best SVC location. Measuring voltage stability, the HSI combines the Vi/Vo index with the L-index. A multi-objective function is developed to lower losses, lower the cost of power generating, and improve voltage stability. The proposed method was tested on an IEEE 30-bus system under both normal operating settings and extreme system disturbances brought on by line outages.  Under both normal and fault situations, the results show the effectiveness of the HHO-based approach in raising power system stability and operational performance when compared to those obtained using the Harmony Search (HS) technique.

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Published

2025-04-16

How to Cite

J. Ayyappa, N. Jayakumar, and A. Srinivasa Reddy. 2025. “A Hybrid Stability Index and Harris Hawks Optimization for the Optimal Reallocation of Generators in the Presence of SVC”. Metallurgical and Materials Engineering 31 (4):500-513. https://doi.org/10.63278/1478.

Issue

Vol. 31 No. 4 (2025)

Section

Research

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Copyright (c) 2025 J. Ayyappa, N. Jayakumar, A. Srinivasa Reddy

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