Enhancement of AVR response based on Intelligent Fuzzy-Swarm-PID Controller
AbstractAutomatic voltage regulator is used to fix the output signal by correcting the voltage of theexciter and track the generator’s voltage. The improvement of automatic voltage regulator (AVR)
response will reflected on the power system performance. In this paper two intelligent techniquesfuzzy logic (FL) and Particle swarm optimization (PSO) are used to enhance the response of theFourth order AVR system based on the merging between them and then the control action summedand coupled with PID controller action. Fuzzy controller has many benefits in design of AVRcompared with conventional controllers, but the response of the AVR system still insufficient,therefore, the PSO and Fuzzy are used together for this purpose to produce Fuzzy-Swarm-PIDcontroller (FSPID). Usually the cognitive (C1) and social acceleration (C2) are taken as a constantvalues in PSO algorithm, but here the Fuzzy logic system is used to get these accelerations to
enhance the response.