SMIB & MULTI-MACHINE SYSTEM DESIGN OF COORDINATED BASED CONTROLLER USING JAYA ALGORITHM

Abstract

E-Mail Id: raunak.ee85@gmail.com 1 M.tech Student, 2,3,4 Assistant Professor, Electrical Engineering, SITE, Nathdwara(Raj.) Abstract-Power system is a huge network which involves many operations going on at the same time. Hence, it is very complex. This complexity is susceptible to many abnormal conditions which may give rise to the low frequency oscillations causing instability in the operation. These low frequency oscillation ranges from 0.1Hz to 2Hz. It is most commonly addressed via incorporating Power System Stabilizer (PSS) in the system. But the elimination of oscillations by it may not be sufficient if the oscillations are due to the severe fault condition. In such a case, Flexible AC Transmission devices (FACTs) come to the aid consisting of several useful characteristics depending upon the type of device used. For the present work, use of Static Synchronous Compensator (STATCOM) has been made. Here, a structure has been designed in cooperating PSS and damping controller based on STATCOM for the purpose of damping out low frequency oscillations. STATCOM is added as the supplementary damping controller. The capability of structure is further enhanced by the use of JAYA Algorithm (JA) by optimizing its parameters. This developed optimized structure is then implemented in the Single Machine Infinite Bus System (SMIB) to analyze its performance. A two are four machine system has been developed and given design of PSS has been implemented for each of machines in their respective areas. To realize the whole model the platform was provided by the MATLAB/SMIULINK. Later on, the performance of the proposed structure for damping out controllers is compared with the other heuristic algorithm based controllers so as to show its vitality and robustness. The main focus which has been considered is the speed deviation at nominal, light and heavy loading conditions. The system modeled is tested for these loading conditions after deviation in speed with and without CPSS, and then with JAYA tuned coordinated design of CPSS and STATCOM. The results obtained have been tabulated and compared in different fault conditions with and without CPSS.