Post-evaluation method for active power distribution network project

Abstract

The invention discloses a post-evaluation method for an active power distribution network project, which is used for evaluating the success degree of a power distribution network project so as to improve the project investment decision level and improve the investment decision. The evaluation method comprises two aspects of an active power distribution network project post-evaluation index system and an active power distribution network project post-evaluation method, the active power distribution network post-evaluation index system adds distributed power supply grid-connected performance indexes in a conventional post-evaluation index system, and power distribution network safety performance indexes are refined; the economic benefit brought by the influence of the distributed power supply needs to be considered in post-evaluation of the economic benefit of the engineering project. And a Delphi method and a fuzzy comprehensive evaluation method are adopted to form a post-evaluation method. On the basis of a conventional power distribution network post-evaluation index system, the influence of the distributed power supply on the safety and economy of the power distribution network is considered, and a multi-factor post-evaluation index system is established, so that the defects that existing power distribution network engineering evaluation analysis is not comprehensive enough and calculation is difficult are overcome.

Description

technical field [0001] The invention relates to the technical field of distribution network engineering in the electric power industry, and is specifically aimed at carrying out comprehensive post-evaluation analysis in the post-evaluation work performance evaluation index system of the distribution network considering the grid-connected performance index of distributed power sources. Background technique [0002] Facing energy shortage and environmental protection pressure, a large number of distributed renewable energy sources (such as wind energy and solar energy) are connected to the distribution network. Resources such as wind and light are renewable energy sources that are environmentally friendly and abundant in reserves. They are an important form of distributed power generation. Extensive access not only has a significant impact on the performance of the distribution network, but also has a significant impact on the investment decision-making of the distribution netw...

AI Technical Summary

Problems solved by technology

[0005] 1. Most of the post-project evaluation methods mainly take the conventional power grid as the main body, and there is a lack of research on the post-project evaluation methods of active distribution network, or even no consideration;

[0006] 2. There are many post-evaluation indicators in the existing projects, but the quantitative evaluation of post-evaluation indicators caused by distributed power grid connection has not been analyzed, and the performance of distributed power grid connection and the evaluation of distribution network engineering benefit indicators by distributed power sources are missing. Quantitative analysis such as correction

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