Wire frame reconstruction method and wire frame reconstruction device of electrical power system

Abstract

The invention provides a wire frame reconstruction method and a wire frame reconstruction device of an electrical power system. The wire frame reconstruction method includes: on the basis of grid-connection of a black-start unit and a thermal power generating unit, recovering the electrical power system initially to form an initial wire frame reconstruction system; according to historical data of output power of a wind turbine generator, acquiring predicted data of real-time output power of the wind turbine generator at the moment corresponding to a wire frame reconstruction moment; on the bases of the predicted data of the real-time output power of the wind turbine generator and the initial wire frame reconstruction system, calculating the maximum value of circuit security risk conditions when load capability for recovering is maximal, and calculating the minimum value of the circuit security risk conditions when the load capability for recovering is minimal; according to the maximum value and the minimum value of the circuit security risk conditions and the initial wire frame reconstruction system, constructing a next-stage wire frame preconstruction model; on the basis of the wire frame preconstruction model, acquiring a reasonable preconstruction wire frame. The wire frame reconstruction method and the wire frame reconstruction device have the advantage that the wind turbine generator is enabled to participate in electrical power system recovering after blackout accidents.

Description

technical field [0001] The present invention relates to the technical field of power system security and recovery control, in particular to a power system grid reconfiguration method and device. Background technique [0002] With the increasing scale of the power system and the continuous improvement of the society's dependence on power supply, the consequences of blackouts are becoming more and more serious, becoming a serious threat to the modern power system. more and more important. With the increasingly serious environmental protection problems, new energy power generation technology has gradually received attention across the country; wind power, as the most valuable renewable energy for large-scale development besides hydropower, has achieved tremendous development in recent years. With the deepening application of wind power in the power system, its position in the power system is becoming more and more important. Therefore, it is very necessary to play the due rol...

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Problems solved by technology

[0003] But in fact, when connecting wind turbines to the power system and making them participate in grid reconfiguration after a blackout, due to the uncertainty of wind turbine output, there is a

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