Implementation of hDE-HTS Optimized T2FPID Controller in Solar-Thermal System

Abstract

In this paper, a fair approach is interpreted to validate the novelty of Type-2 Fuzzy PID (T2FPID) controller over Type-1 or conventional Fuzzy PID (FPID) and PI controller as secondary frequency controller and Heat Transfer Search (HTS) algorithm is adopted to extract the optimum gains of the controllers. T2FPID controller has a beautiful property to handle large uncertainties of the system with extra degree of freedom. T2FPID controller is implemented in a two area interconnected thermal-PV power system to enhance the system performance. ITAE is adopted as objective function of the system to lessen the undershoot, overshoot, and settling time of frequency and tie-line power deviation. A novel hDE-HTS algorithm is adopted to enhance the system performance by searching the relevant pair of gains of controller. This analysis is executed by implementing a step signal (load disturbance) of magnitude 0.1 in area-2 to study the transiency of the system. The novelty of this work is to implement hDE-HTS optimized T2FPID controller to enhance the Solar-thermal system responses (Frequency and tie-line power deviations).