Under-frequency Load Shedding on the Performance Time Delay Relays of Transmission lines with difference Controllers

Abstract

This paper analyses the load shedding methods for the impact of communication delays. Therefore, the research investigates the impacts and effects of communication networks in the grid systems which might cause imperfections such as delays and noise among others related to relays. The model of the power system and the design of the controllers are done using Simulink, the Matlab software. The controllers are designed to output power imbalance based on frequency deviation during various systems under frequency conditions. They also shed loads continuously until the frequency is restored within the safe operating range. Different cases of the system under frequency are used to analyze the performance of the grasshopper optimization algorithm (GOA) proposal based on under-frequency load Shedding UFLS, a comparison with Traditional and particle swarm optimization (PSO). UFLS is performed due to various disturbances. It has been found that a GOA method provides excellent communication networks and reduces the size of the load is shed. Moreover, and what’s more, GOA achieves the fastest solution we’ve ever used in IEEE 14 Bus system.