Out-of-step Splitting Control based on Network Wide Area Response Information

Abstract Influenced by the continuous growth of renewable energy installation scale and increasingly prominent characteristics AC/DC hybrid structure, disturbance behavior large power grid is becoming more complex. To ensure safety grid, higher requirements are put forward for reliability, accuracy orderliness out-of-step splitting control which belonged to third line defense. Firstly, this paper analyzes principle application limitation ucosφ based on local measurement information, studies relationship error between oscillation center, location coefficient ζ center defined. On basis, criteria branch strategy multi-branch wide area cooperative proposed. The simulation results AC HVDC show that proposed can adapt complex dynamic in multiple generator clusters lose synchronization one after another, accurately identify cutset corresponding cluster, realize unified orderly each cutset.