Unified tuning of PID-derivative filter load frequency controller for two area interconnected system including wind power plant

Abstract

Load frequency controller is networked in noisy environment which is produced by frequent switching of load. Hence, this paper aims to develop a controller which is less sensitive to noise. Presented paper introduces a PID-derivative filter load frequency controller for the two area interconnected thermal-thermal with wind power plant. The wind turbine equipped with inertial control and droop control participating in the frequency regulation. The proposed controller is based on cascading of derivative filter with PID controller. The Z-N, tuning method is used for tuning of PID controller. Time domain analysis has been performed in MATLAB/SIMULINK ver. 2013 a for testing of applicability of proposed controller. The simulation results of the PID-derivative filter load frequency controller have been compared with conventional proportional integral derivative controller. A substantial improvement in stability of the system has been perceived with PID-derivative filter controller alleviating its applicability. Simulated results given in the paper illustrate the feasibility of the PID-derivative filter load frequency controller.