Power System Stability Improvement By Using SVC With TID Tuned PID Controller
Journal Title: International Journal of Advanced Research in Computer Engineering & Technology(IJARCET) - Year 2012, Vol 1, Issue 8
Abstract
This paper presents the model of a static VAR compensator (SVC) which is controlled externally by a Proportional IntegralDifferential(PID)controller for the improvements of power system stability and damping effect of an on line power system. PID parameters has been optimized by proposed Triple Integral Differential(TID) close loop tuning method. Both single phase and three phase (L-L) faults have been considered in the research. In this paper, A power system network is considered which is simulated in the phasor simulation method & the network is simulated in three steps; without SVC, With SVC but no externally controlled, SVC with TID tuned PID controller . Simulation result shows that without SVC, the system parameters becomes unstable during faults. When SVC is imposed in the network, then system parameters becomes stable. Again, when SVC is controlled externally by PID controllers, then system parameters(V,P,Q,dω) becomes stable in faster way then without controller. It has been observed that the SVC ratings are only 20 MVA with controllers and 200 MVA without controllers. So, SVC with TID tuned PID controllers are more effective to enhance the voltage stability and increases power transmission capacity of a power system .The power system oscillations is also reduced with controllers in compared to that of without controllers. So with controllers the system performance is greatly enhanced.
Authors and Affiliations
Md. Habibur Rahmanhas , Prof. Dr. Md. Fayzur Rahman , Md. Harun-OR-Rashid
Keywords
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