A Frequency Control Approach by Decentralized Controllable Loads in Small Power Systems

Abstract

From depletion of energy resources and consideration to natural environment, dispersed power system such as wind power generator is scheduled for introduction. Additionally, all electrification apartment house or residence and electric vehicles are increase in recent years. However, due to the fluctuating power from renewable energy sources and loads, frequency fluctuation of power system become problematic. This paper presents a methodology for grid frequency control by distributed controllable loads. This system consists of diesel generator, wind farm, and loads. By applying power consumption controller with H_∞ control theory, grid frequency fluctuation is maintained around rated value. In order to verify the effectiveness of the proposed system, MATLAB/Simulink is used in simulations.