Power flow control method and control device for partitioned power grid

Abstract

The invention relates to a power flow control method and control apparatus of a district grid. The method comprises: (1), after a load group control module inputs a district power-limiting load capacity control objective, a logic determination module arranges link circuits among different district substations according to districts formed by a network topological module and pushes the link circuits to a central processor; (2), a strategy control module calculates circuits needing to be transferred according to remote signaling data collected by a remote signaling collection module, generates a control strategy of circuit switches based on the remote signaling data collected by the remote signaling collection module, and pushes the strategy to a strategy execution module; and (3), the strategy execution module pushes information to the load group control module to execute the batch operation according to the control strategy of the circuit switches; and after execution completion, the load group control module calculates the rest of load capacity needing control again and then batch control is carried out. According to the invention, loads provided by link circuits among districts are transferred in batches and then load group control is carried out according to the district power-limiting vacancy, thereby realizing power failure reduction for user in districts.

Description

technical field [0001] The invention relates to a power flow control method and a control device for a partitioned power grid, and belongs to the technical field of electric power system automation. Background technique [0002] UHV DC high-power operation failure, large power supply loss and other major accidents and emergencies will cause the power flow in some areas to exceed the limit, ultra-stable limit operation, and even cause the grid to collapse. In order to deal with this situation and ensure the safe and stable operation of the power grid, the regional power grid dispatching department has deployed the "Regional Load Rapid Batch Control System" (hereinafter referred to as the "Load Group Control System"). The system is based on the OPEN-3000 system, and the dispatching department formulates a detailed "Load Group Control Accident Power Limit Sequence Table" according to the "Regional Power Grid Accident Power Limit Sequence Table". In this way, the specific corre...

AI Technical Summary

Problems solved by technology

The existing system is based on the safety and stability requirements of the power grid operation, and has achieved good control in terms of time and load. However, for this kind of partition connection line load, manual remote control is still required one by one, which is not smart enough, and the time cannot meet the requirements.

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