Centralized relay protection and fault restoration system and method

Abstract

The application relates to the field of power distribution network relay protection and fault recovery, and discloses a centralized relay protection and fault recovery system applied to a power distribution line, which comprises a power distribution network master station and power distribution collection terminals, the power distribution network master station is electrically connected with on-station switches of the power distribution line, the power distribution collection terminals are electrically connected with sectional switches or tie switches of the power distribution line in one-to-one correspondence, and the power distribution network master station and the power distribution collection terminals communicate through a wireless communication network; the power distribution network master station is used for acquiring fault information collected by the power distribution collection terminals, controlling corresponding sectional switches to disconnect power supply of fault points to isolate faults, and controlling corresponding tie switches to be closed to recover power supply of downstream of the fault points according to the fault information; and a corresponding method is further disclosed.The application changes the dispersedly-configured power distribution network relay protection into centralized relay protection, and can well solve the problems of cooperation of the head end, the tail end and the middle section of the power distribution network and real-time monitoring of the terminal operating state.

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