Evaluation of Integrated Fuzzy Logic Generator Controller on Analog Simulator

Abstract

This paper presents the evaluation results of an integrated fuzzy logic generator controller on an analog simulator. The proposed controller is set up by using a board type computer, AD and DA conversion interfaces, and insulated amplifiers. The controller has three control loops: the first one is the voltage control loop, which has the function of automatic voltage regulator(AVR), the second one is the damping control loop, which has the function of power system stabilizer(PSS), and the last one is the speed governing control loop, which achieves the function of the speed governor. The proposed fuzzy logic control rules are simple enough so as not to require intensive computation on the computer, therefore, its on-line real time implementation is feasible. To demonstrate the effectiveness of the proposed integrated controller, experimental studies have been performed on the analog simulator(AS) at the Research Laboratory of Kyushu Electric Power Co. The results show the robustness of the proposed controller compared with conventional controllers.