COORDINATED CONTROL OF LOW FREQUENCY OSCILLATIONS USING IMPROVED MONKEY ALGORITHM

This paper proposes an improved version of Monkey Algorithm (IMA) to simultaneous coordinated tuning of two power system stabilizers (PSSs) in a power system. A conventional lead-lag structure is considered for the controllers where the parameters of two PSSs are determined simultaneously by IMA. The numerical results are presented on a two-area 4-machine system to illustrate the feasibility of the IMA. To show the effectiveness of the designed controllers, a three phase fault is applied at a bus. The simulation study shows that the designed controller by IMA performs well in damping of oscillations.