Optimal Placing of Static VAR Compensator Using Sensitivity Indices Method for Performance Improvement of Power System (original) (raw)

In power system all over the world, due to increase in load demand, transmission system are being forced to operate nearer to their loading limits, stability limits. If exchanges were not controlled, some lines located on particular paths may become overloaded; this phenomenon is called as congestion. Congestion management is essential to bring power system in secured state. Congestion management can be defined as the actions taken to avoid or relieve congestion. In this deregulated power system, independent system operator has to relieve the congestion, so that the system is maintained in secure state. The Flexible AC Transmission System (FACTS) devices are found to be more useful to relieve congestion. FACTS devices enhance power transfer capabilities, power system stability and allow more flexible control of power flow. Here FACTS device used is Static VAR Compensator (SVC). For optimal location of SVC, real power flow performance index sensitivity indices method is implemented. To determine sensitivity indices for proposed metho used. IEEE-14 bus system is used here for the study purpose.

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