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In FACTS devices supplementary signals are widely used to enhance damping and mitigation of subsynchronous resonance in power system. Subsynchronous resonance occurs due to series capacitor in the power systems. High value of series capacitive reactance may destabilize low frequency mode which is more dangerous. There are four critical values of series compensation (XC) against which rotor oscillations...
A method is proposed in this paper to select supplementary signals for a static var compensator in IEEE first benchmark model. Different input output controllability analyses are used to assess the most appropriate supplementary signals for the static var compensator (SVC) for achieving effective damping of torsional oscillations. After placing the SVCs based on their primary functions, the most appropriate...
The main focus of this paper is to analyse IMDU characteristics to damp subsynchronous resonance. IMDU is coupled to T-G shaft. The advantage of using IMDU to damp SSR is that we need no other controller. The IEEE First Benchmark Model for subsynchronous studies is used to study eigenvalue analysis and time domain simulations. The time domain simulation study under large disturbances condition is...
Application of series capacitor in long transmission line is a cost effective method to increase power transfer. But presence of series capacitor has sometimes been limited because of the concern for subsynchronous resonance phenomenon in transmission line. SSR is basically an electrical power system condition where the electrical network exchanges energy with the turbine generator at one or more...
Damping SSR oscillation has been a topic of great interest and research. The advent of series FACTS controllers, e.g. Thyristor Controlled Series Capacitor (TCSC) and Static Synchronous Series Compensator (SSSC) has made it possible not only for the fast control of power flow in a transmission line, but also for the mitigation of Subsynchronous Resonance (SSR) in the presence of fixed series capacitors...
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