Super-Twisting Algorithm based Load Frequency Control of a Two Area Interconnected Power System

Abstract

Maintaining the stability of a power system using appropriate controller is considered as one of the most challenging task of a power system engineer. This paper proposes the application of Super-Twisting algorithm based controller, for the load frequency control (LFC) of two area interconnected power system with nonlinearities and disturbances. Even though the presence of nonlinearities such as governor dead band (GDB) and generation rate constraint (GRC), the proposed controller regulates the frequency error, tie-line power error and area control error (ACE) to zero much faster than the popular Integral controller even in the presence of disturbance. For the purpose of analysis and comparing, Matlab/Simulink software tool is used.