Dynamic Stability Enhancement in a Multimachine Power System using SVC along with a Controller

This paper presents a mathematical analysis namely linearization technique for small signal stability enhancement in multi machine power system using a FACTS device SVC. Using eigen values and participation matrix the small signal dynamic behavior of the multimachine power system is investigated. Secondly with a FACTS device SVC the same system enhanced dynamic behavior using eigen values and participation matrix is also studied. Finally, with SVC along with a controller the same system effective dynamic stability using linearization technique is seen. Local stabilizing signals such as bus voltage deviations and bus angle perturbations are used as control inputs for the damping controller in FACTS device. Proposed technique is implemented on the standard WSCC 3 Machine 9 Bus system. The system is simulated in PSAT software and the computations are carried out using MATLAB.