Damping of Power System Oscillations Using SVC With HPF Control
نویسندگان
چکیده
In large power systems, low frequency electro-mechanical oscillations often follow the electrical disturbances. Generally, power system stabilizers (PSS) are used in conjunction with Automatic Voltage Regulators (AVR) to damp out the oscillations. However, during some operating conditions this device may not produce adequate damping and other effective alterations are needed in addition to PSS. That can be achieved with shunt FACTS device designed with auxiliary controllers. Static Var Compensator (SVC) is a shunt type FACTS device which is used in power system primarily for the purpose of voltage and reactive power control it has also the capability of damping oscillations with suitable controllers. A new Hybrid PID with fuzzy logic controller is designed and studied the performance. The results are obtained using nonlinear simulation in MATLAB. The results showed that Hybrid PID with fuzzy (HPF) controller is more effective in damping power system oscillations.
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