Simulation and implementation of marine generator excitation system with PSS

Small signal stability is the ability of the marine power system to maintain synchronism when subjected to small disturbance. To improve the stability performance of marine power system, a power system stabilizer (PSS) is introduced into the traditional marine generator excitation system with automatic voltage regulator (AVR). Load compensation is used to control a voltage which is representative of the voltage at a point either within or external to the generator. The PSS uses auxiliary stabilizing signals to control the excitation system so as to more improve marine power system dynamic performance. Marine power system dynamic performance is improved by the damping of system oscillations. This is a very effective method of enhancing small signal stability performance. By simulating of marine generator excitation system with PSS is presented and better stability performance are acquired.