Online automatic generation method for black-start scheme

Abstract

The invention relates to the technical field of electric power system analysis and control and provides an online automatic generation method for a black-start scheme. The online automatic generation method comprises the following steps: acquiring a QS formatted file in an E language from 'intelligent power grid dispatching technical support system for state grid' through a file transmission protocol and analyzing the QS formatted file in a C# language; constructing a topology map by taking a node in the power grid as a vertex and a power transmission line or transformer as a border; adopting the shortest path algorithm or depth-first search algorithm for calculating a black-start recovering path from a power point to a to-be-recovered unit / load; calling ATP-EMTP and PSD-BPA7 for performing simulating calculation; introducing a class library Microsoft.Office.Interop.Word for automatically writing a simulated result into a Word file in the form of graph, word and table, thereby forming the black-start scheme. Compared with the existing method for forming the black-start scheme by manually adopting the tool, such as PSD-BPA or ATP-EMTP, which is time-wasting and labor-wasting and has the defect of inferior applicability of independently developed simulated program, the online automatic generation method has the advantage that the efficiency and credibility of the generated black-start scheme are increased. The online automatic generation method has significance in failure recovery of a power system.

Description

technical field [0001] The invention relates to an online automatic generation method of a black start scheme, in particular to an online automatic generation method of a black start scheme based on ATP-EMTP and PSD-BPA software, and belongs to the technical field of power system analysis and control. Background technique [0002] Any strong power grid has a weak mode of operation and a serious state of operation. After the power grid fails, the decentralized configuration and independent operation of automatic devices may bring hidden dangers to the safe operation of the power grid while protecting the power grid. For example, a large number of lines, power generation The removal of units and loads may cause cascading failures in the power grid, which is also one of the direct causes of blackouts. With the gradual formation of cross-regional power grids, the interconnection between regional power grids is getting closer and closer, and local power grid failures may cause la...

AI Technical Summary

Problems solved by technology

[0009] Existing black start schemes are formulated manually using tools such as PSD-BPA and ATP-EMTP. Professional and technical personnel are required to spend a lot of time on restoration paths, data organization for scheme verification, generation of simulation files, and analysis of simulation results. time and effort to complete

Therefore, it is urgent to develop an automatic black-start scheme generation method that can be applied to different types of models to solve the dilemma of time-consuming and labor-intensive black-start scheme generation methods and the poor applicability of self-developed simulation programs.

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