Load frequency control of interconnected five-area power system with PID controller

摘要

The frequency of the power system is varied by the variation in the load of power system, thus it created a load frequency control difficulty (LFC). The frequency distinction is highly objectionable and maximum tolerable frequency distinction is ± 0.5Hz. In this paper load frequency control is done by PID controller. Our control goal has to normalize the area control error(ACE), frequency error and tie-line power error despite the presences of system uncertainties and exterior load disturbance. The behavior of the planned controller is checked by means of MATLAB/SIMULINK software. The outcome show that controller provides speedy response, less undershoot and small peak overshoots with having minute state transfer time to make the final steady state. This paper for single area, two area and five area the helpfulness of PID controller is confirmed.