With the rapid development of UHV AC/DC power grid

the connections between power sending-side and receiving-side

AC and DC

and the upper and lower levels of the dispatch center are becoming closer and closer. The risks that local faults spread to the whole power grid are increasing

and the difficulty of dispatching real-time operation control is significantly also increasing. In this context

the paper analyzes the challenges and needs of real-time operation control of UHV AC/DC power grid

and combs out the problems and shortcomings of previous dispatching control system for supporting the operation control of UHV power grid. On this basis

the overall goal

the overall framework and the main modules of the integrated operation monitoring and fault co-processing application of the UHV interconnected power grid application function are proposed. Then

the related key technologies are analyzed and demonstrated

such as the operation status of the UHV power grid with the same monitoring of different dispatch centers

the coordination fault diagnosis of cross-regional power grid

the multi-level fault disposal joint implementation

fault information integration and multi-screen linkage display

“generation-grid-load” optimization coordination

provincial and prefectual power grid load coordination control and so on. Combined with the engineering practice in the relevant dispatch center of the UHV sending side and receiving side

the practical application effect is introduced. Finally

the future development directions and key technologies in the field of dispatching control of UHV power grid are discussed.