The invention discloses a power distribution network evaluation method The method comprises the following steps of: constructing a load model by considering negative specie division and load identity; constructing a load value model by considering influence weights and a consistency ratio RI between the loads and combining the load model; constructing a load potential hazard model by consideringload potential hazard evaluation factors and the consistency ratio RI and combining the load model; constructing a power distribution network evaluation model by considering load potential hazard weights and combining the load model, the load value model and the load potential hazard model; and substituting power data for standard processing into the power distribution network model to calculate apower distribution network evaluation value, wherein the power distribution network evaluation value is as high as possible According to the method, mutual restriction of multiple factors is considered, so that the contingency, for power grid judgement, of single factors can be decreased and the social stability can be improved; and power grid companies can gather data of former years to carry out judgement, and also can refer to aspirations of the public and the government to adjust judgement value parameters

Power distribution network evaluation method

The invention provides a power grid investment benefit whole-process simulation method and system, and the method comprises the steps: calculating a net profit according to a power selling profit, a power transmission and distribution profit and a cost investment fund under new power transformation; calculating the investment capacity of the power grid according to the investment funds of the power grid and the loan funds which are included in the central pre-calculation, the investment funds of the power grid being obtained by calculating the net profit and the investment distribution ratio;determining a power grid investment scale according to the investment plan and the power grid investment capability of the power grid comprehensive plan management project, calculating to obtain a cost investment fund and an asset investment fund according to the power grid investment scale, and using the asset investment fund to improve the power transmission and distribution profit; calculatingthe social responsibility completion degree according to the power supply reliability and the comprehensive voltage qualification rate; and calculating the comprehensive benefit of the power grid according to the net profit and the social responsibility completion degree. The method can adapt to a new power transformation form, and can accurately realize simulation of the whole process of power grid investment benefit.

A power grid investment benefit whole-process simulation method and system

The invention discloses a method for calculating the construction priority of a regional distribution network based on a unit system, which includes the following steps: S1, dividing a regional distribution network to be constructed into a plurality of power supply units; S2, establishing an importance coefficient index system and a construction demand coefficient index system for each power supply unit; S3, determining the importance coefficient index weight and the construction demand coefficient index weight of each power supply unit through AHP (Analytic Hierarchy Process), and using a membership function to calculate the importance coefficient index score and the construction demand coefficient index score of each power supply unit; S4, calculating the importance coefficient I and theconstruction demand coefficient D of each power supply unit according to the index weights and the index scores; and S5, calculating the construction priority coefficient P of each power supply unitaccording to formulas. Based on the idea of unit planning, an evaluation system of power supply units is established with units as objects to quantitatively analyze the priority of each unit. The investment level of the distribution network precision construction is greatly improved.

Method for calculating construction priority of regional distribution network based on unit system

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Method for calculating construction priority of regional distribution network based on unit system