Method and system for generating power distribution network black-start scheme

Abstract

The invention provides a method and a system for generating a power distribution network black-start scheme. The method comprises a power supply determination step of determining a target black-start power supply according to output characteristics of available black-start power supplies in a power distribution network and the capacities of the available black-start power supplies, a path determination step of determining a plurality of power distribution network paths according to the available power supplies in the power distribution network, a path searching step of searching a feasible power distribution network path from the plurality of power distribution network paths according to the load capacity and constrained parameter of the target black-start power supply, and an establishing step of assessing the power distribution network path according to an assessment parameter, and determining and establishing a target power distribution network according to a assessment result. By the technical scheme, after a large area of the power distribution network is power-off, power supply of partial loads can be recovered through the automatic starting and independent running capability of the starting power supply of the power distribution network.

Description

technical field [0001] The invention relates to the technical field of black start, in particular to a method for generating a distribution network black start scheme and a system for generating a distribution network black start scheme. Background technique [0002] Black start refers to the process that after the entire system is powered off due to a fault, without relying on the help of other systems, the units with self-starting capabilities in the system are driven to drive the units without self-starting capabilities, and the power supply range of the system is gradually expanded, and finally the entire system is fully restored. . At present, the research in the field of black start mainly focuses on the transmission network, and its main research results are shown in the following aspects: [0003] (1) Research on black start power supply. The black start power supply units in the transmission network mainly include: gas turbines, hydroelectric units with low head a...

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Problems solved by technology

[0006] The above is the main research on the black start scheme in the transmission network at present. Although there have been a lot of research on the generation method of the black start scheme in the power system, and there have been some black start cases at home and abroad, the research focus is on the restoration of the transmission network and the impact on the distribution system. There are few researches on the power grid, and almost no mature technical solutions

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