Design of coordinated control of series vectorial compensator and power system stabilizers with desired eigenvalues in the sliding mode

This study suggests a systematic approach for the design of Coordinated-Control (COC) of Series Vectorial Compensator (SVEC) and Power System Stabilizers (PSSs), with desired eigen-values in the sliding mode. The Optimal Sliding Mode Control (OSMC) is developed to damp Low Frequency Oscillations (LFO) under the nominal load condition. Despite the fact that SVEC and PSS have been incorporated individually in multi machine networks, OSMC based on feedback control for coordination of SVEC and PSS has not been developed. So, the OSMC control for SVEC and PSS in the COC manner has been developed in this paper. The performance of the proposed controller is checked through eigen-value analysis and non-linear simulations under nominal load operation. The multi machine network is used for comparison purpose. The net results show that OSMC for COC of SVEC and PSS can offer better damping characteristics than without control.