POWER OSCILLATION DAMPING USING QPSO BASED CONTROLLER FOR STATCOM

In this paper, a novel damping controller based on Quantum based Particle Swarm Optimization (QPSO) method is proposed for the STATCOM in order to damp the Low Frequency Oscillations (LFO) of the power system which caused by fault. The proposed controller is utilized in a three areas power system which has two inter-area modes of oscillation. As a result, the two stage damping controller is implemented to cover both modes of oscillations. To examine the proposed controller comprehensively, another damping controller which is optimized by PSO algorithm is also designed and supplemented to the STATCOM’s normal controller. Simulation results are performed in three different operating points to assess the capability of proposed QPSO based damping controller in LFO suppression. Moreover, a Performance Index (PI) analysis is also carried out for various cases to compare two proposed controllers analytically.