Reliability analysis and power quality improvement model using enthalpy based grey wolf optimizer

Abstract

With the modern era of a restructured power system environment, there are various power quality issues faced when it is being transferred within different utilities. To overcome these issues and deliver maximum effective power maintaining its quality in terms of Voltage Stability, Losses, distortion in the signal received etc. is the major challenge. This paper presents the enthalpy based Grey Wolf Optimisation (GWO) model and aims to solve the issues of the node voltage deviation power system, feeder power losses, power factor, and total harmonic distortion in a power system. The results of the model presented is compared with different conventional algorithms and found to be most suitable due to its simplicity, faster convergence and high search precision. The analysis of the presented method is performed on IEEE 30 and 57 test bus systems in MATLAB/SIMULINK environment. When compared with the conventional models, our proposed method shows 0.49, 0.69 and 1.41% better fitness accuracy for IEEE 30 and 3.23, 2.37 and 1.45% better for IEEE 57 than PSO, ABC and GA respectively. The proposed method has proved to be effective in terms of all the objectives stated above and attaining the maximum quality of power.