A NEW STABILIZER FOR POWER SYSTEMS USING SYNCHRONIZED PHASOR MEASUREMENTS

POWER SYSTEM STABILIZERS ARE USED TO PREVENT OSCILLATIONS INDUCED BY GENERATORS ON THE UTILITY NETWORK. THIS IS TYPICALLY DONE BY INSTALLING INSTRUMENTS AT THE TERMINALS OF THE GENERATOR. AS LINES BECOME MORE HEAVILY LOADED, AND THE GENERATORS ARE RUN AT HIGHER OUTPUTS, SYSTEM STABILITY BECOMES A MORE CRITICAL ISSUE. WITHOUT PROPER STABILIZATION, GENERATOR OUTPUTS MUST BE REDUCED AND/OR LINE LOADINGS REDUCED TO KEEP THE SYSTEM FROM BECOMING UNSTABLE, RESULTING IN A POWER OUTAGE. THE USE OF REMOTE INPUT STABILIZERS BASED ON PHASOR MEASUREMENT TECHNIQUES WILL RESULT IN INCREASED RELIABILITY, AND ENORMOUS DOLLAR SAVINGS IN TERMS OF DEFERRED PLANT AND TRANSMISSION CONSTRUCTION.