Angle Instability Detection in Power Systems With High-Wind Penetration Using Synchrophasor Measurements

摘要: The alternating current machines in a power system have the ability to remain synchronized following severe disturbance such as loss of generations, line switching, or fault. This is described transient stability. During transients, will accelerate decelerate because mismatch between electrical torque and mechanical torque. Their angles travel finally settle down new equilibrium, if has enough stored energy absorb disturbance, rest at another steady state. In case instability, some aperiodic angular separation from lose synchronization. Therefore, stability also called angle total inertia an essential force transient. inertias all rotating masses that are connected system, synchronous generators induction motors, typically respond disturbances voluntarily, without any control actions; however, several types renewable generation, particularly those with electronic interfaces, inertial response governed by function. To ensure bulk stability, there need estimate equivalent available generation plant. An voluntary constant analogous conventional can be used provide readily understandable metric, instabilities detections, one most difficult obstacles for instability detection knowledge real-time generator inertias. paper explores method utilizes synchrophasor measurements source wind turbine generators. investigates high penetration using measurements.