Application of Wide Area Protection and Control System to Southern Xinjiang Power Grid

The wide area protection and control system for southern Xinjiang power grid consists of special protections installed in 30 stations,covering Bazhou,Akesu,Kashi,Hetian area. When faults occur on the connecting lines or the main generators,the measures such as separation or load shedding are adopted to prevent the wider area blackout and ensure the secure and stable operation of southern Xinjiang power grid. By investigating the wide area protection and control system for southern Xinjiang power grid,the system configuration,realization mode,new principles,and new criterions suitable for this type power grid are presented in this paper. This system has tripped correctly several times to ensure the security and stability of southern Xinjiang power grid.