Power balanced load shedding of microgrid systems using nonlinear system stabilizer

Abstract

A micro grid is an eco-friendly power system because renewable sources are used as main power sources. In the islanded operation mode of a micro grid, maintaining the balance between power supply and power demand is a very important problem. In the case of surplus supply, decreased generation output and/or charge of distributed storages can be applied to solve the imbalance between power supply and demand. In the case of supply shortages, increased generation output and/or discharge of distributed storages can be applied. Especially in the case of critical supply shortages, load shedding should be applied. In a distributed load-shedding approach, micro grid components need to make decisions autonomously. For autonomous micro grid operation, depending on load availability been investigated using non linear technique. In this project a distributed load-shedding system of micro grid system using non linear techniques are discussed. The designed system is implemented and tested to show the functionality and feasibility of the proposed system. Using MATLAB tool simpower system a load shedding was developed to improve the stability during fault provoked islanding modes and load availability.