Black-start scheme evaluation method based on combination of penalty variable weight and PROMETHEE

Abstract

The invention discloses a black-start scheme evaluation method based on combination of penalty variable weight and PROMETHEE, which combines calculation results of an analytic hierarchy process and anentropy weight method to calculate an initial combination weight of an evaluation index, and gives consideration to subjectivity and objectivity of evaluation. By applying a penalty function variableweight analysis method, the initial combined weight and the measured data are combined to prevent the index with small value and low weight from being neutralized by the index with large value and high weight to a certain extent, and the rationality and fairness of an evaluation result are ensured; different black-start schemes are evaluated by combining the index weight after weight change witha PROMETHEE method to obtain a good and bad sequence of the black-start schemes. The method is clear in thought, simple and feasible, and is easily understood and accepted by a decision maker. Throughthe method, a more reliable good and bad sequence of the black-start scheme can be obtained, and a guarantee is provided for complete operation of a power grid.

Description

Technical field [0001] The present invention belongs to the technical field of black start scheme evaluation, and specifically relates to a black start scheme evaluation method based on the combination of penalty variable weight and PROMETHEE. Background technique [0002] After a major power outage occurs in the power grid, a black start plan needs to be adopted for recovery, and a reasonable and effective black start plan is an effective measure for timely recovery after a major power outage in the power grid. It can not only start the corresponding units quickly and stably, but also facilitate the subsequent recovery of the black start. . Especially in the context of the increasing scale of the modern power system, the firmer structure, and the increasingly complex network topology, technicians can propose many feasible black start schemes, but these schemes may have a huge comprehensive effect on the system recovery process. The difference. Therefore, the evaluation and ran...

AI Technical Summary

Problems solved by technology

Especially in the context of the modern power system's increasing scale, increasingly solid structure, and increasingly complex network topology, technicians can propose many feasible black-start schemes, but the comprehensive effect of these schemes on the system recovery process may have a huge impact. difference

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