Minimize synchronous speed changes of multi-machine system generators to improve power system fluctuations

In this paper, the objective function in the time domain is presented in the form of minimization, changes synchronous speed of multi-machine system generators and direct current voltage “STATCOM” in order to improve system fluctuations; including local velocity fluctuations and system performance in terms of overshoot and sitting time. Setting the STATCOM parameters is provided by Grey Wolf Optimization Algorithm in the form of an optimized problem. The function of suggested optimization method was first compared with Genetic optimization method and was then examined under operating conditions and different disarrays. Simulation results show that suggested Grey Wolf optimization method is of better function and more speed in damping power system’s fluctuations than Genetic Algorithm Method

Keywords:

power system , power system stability , synchronous static compensator , gray wolf algorithm