Improvement In Voltage Profile of Synchronous Generator Using PID Controller And Artificial Neural Network In Automatic Voltage Regulator

Voltage instability is a major problem that arises due to switching of heavy load, due to which transient conditions occur in the system. Transient conditions may lead to instability of the system. The voltage instability also involves in limitation of the power supply, as a matter of concern the voltage stability is the potential of a power system to preserve the voltage in allowable limits at all the buses in the system subjected under standard conditions and after being subjected to a disturbance, but when these disturbances occurs in a progressive manner then there is some decline in the voltage so the power system seems to have entered in a state of voltage instability. This condition can be removed by introducing an AVR (automatic voltage regulator). In this paper AVR (automatic voltage regulator) is controlled with a PID(proportional integral derivative) controller. ANN (artificial neural network) is used to tune proportional integral derivative controller and to achieve steady voltage waveform which is evidenced by the simulation results and is effective in the system.