Analysis of Frequency Regulation for a Hydro-Thermal System with ALFC-DR Model

The paper is investigated the dynamic behavior of a hydrothermal power network with the aid of demand side management (DSM). DSM provides prime to consumers about the usage of electricity and prevent cross subsidies among consumers with the aim to manage the supply and demand through an elegant program. In the present work DSM is incorporated in the automatic load frequency control (ALFC) of an interconnected hydrothermal power network to get better frequency regulation. Particle swarm optimization (PSO) technique is utilized to obtain optimal control parameter of the controller employed for DSM. The presence of DSM is found to be promising in the enhancement of dynamic stability of the hydrothermal power network.