Economical operation evaluation method of active power distribution network based on economical operation domain

Abstract

The invention discloses a method for evaluating the economic operation of an active distribution network based on an economic operation domain, which includes: defining 14 secondary evaluation indicators in the context of an energy Internet-oriented active distribution network, and comparing them with existing indicators Combined, according to the classification and processing of the characteristics of the new secondary indicators, four new first-level indicators are established, and an evaluation index system for the economic operation of the active distribution network oriented to the energy Internet is constructed, and some existing indicators are improved; the entropy weight method is used to correct , using the combination of subjective and objective weighting methods to improve the interval analytic hierarchy process, and as the weight calculation method of the present invention, using the methodology of "domain" in the distribution network security analysis to define the economic operation function and the economic operation domain; based on the economic operation domain Establish a model of each economic operation level of the active distribution network; judge whether the sample to be evaluated belongs to the corresponding level according to whether the economic operation function exceeds the limit.

Description

Technical field [0001] The invention relates to an evaluation method for the economic operation of an active distribution network, in particular to an evaluation method for the economic operation of an active distribution network based on an economic operation domain. Background technique [0002] The economic operation of the distribution network refers to the adjustment of the unreasonable network structure, the targeted organization and adjustment of the power supply load, so that the load transmitted by the line and equipment during the operation time reaches a reasonable value as much as possible, reducing power loss and reducing the network Loss rate, improve economic efficiency. [0003] In recent years, with the introduction of large-scale electric vehicles (Electric Vehicle, EV), Energy Storage System (ESS), Distributed Renewable Energy Generation (DREG), and combined cooling, heating, gas and power technologies Power grids, traditional distribution networks face greater ...

AI Technical Summary

Problems solved by technology

[0004] At present, a variety of evaluation methods have been widely used in power grid operation evaluation, mainly including analytic hierarchy process, gray relational degree method, BP neural network method, fuzzy comprehensive evaluation method, TOPSIS method and data envelopment method, etc. The recent evaluation methods It is mostly a combination or improvement of the above methods, which makes the calculation process too complicated, and the calculation amount is large, which affects the calculation speed and limits its practical application.

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