New energy large-scale access-oriented distribution network elasticity index evaluation system construction method

A technology of elasticity index and construction method, which is applied in the field of power system, can solve the problems of failure to consider the power supply side, energy storage side, insufficient diversity of evaluation elements, and inability to adapt to new energy access, so as to improve the company's management level and economic Benefits, reduction of redundancy margin, and improvement of equipment utilization

Pending Publication Date: 2022-06-17
STATE GRID ZHEJIANG ELECTRIC POWER +1
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Problems solved by technology

[0006] 1. The existing distribution network evaluation system only evaluates the traditional aspects of the power grid (power supply capacity, power supply reliability, grid level), and has not formed a comprehensive and complete evaluation system;
[0007] 2. The existing distribution network evaluation system only considers the power grid side, but fails to consider the power supply side and energy storage side. The evaluation elements are not diversified enough to adapt to the large-scale new energy access under the new power system

Method used

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  • New energy large-scale access-oriented distribution network elasticity index evaluation system construction method
  • New energy large-scale access-oriented distribution network elasticity index evaluation system construction method
  • New energy large-scale access-oriented distribution network elasticity index evaluation system construction method

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[0056] Example: as figure 1 Shown is the flow chart of the construction method of the distribution network elasticity index evaluation system for the large-scale access of new energy, including the following steps:

[0057] S1. Obtain the elasticity index of the distribution network elasticity that affects the large-scale access of new energy;

[0058] S2. Obtain the elastic factors affecting each elastic index, and calculate the elastic index according to the proportion of the elastic factors;

[0059] S3. Construct a distribution network elasticity index evaluation system according to the elasticity weight of each elasticity index.

[0060] like figure 2 As shown, the distribution network elasticity index evaluation system is guided by "carrying index, self-healing index, efficiency index, and interaction index", and correspondingly constructs an elastic factor composed of 20 indicators in four dimensions: carrying, self-healing, efficiency and interaction. Evaluate distrib

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Abstract

The invention discloses a new energy large-scale access-oriented distribution network elasticity index evaluation system construction method. The method comprises the following steps of S1, obtaining an elasticity index which affects the elasticity capability of a new energy large-scale access distribution network; s2, acquiring an elastic factor influencing each elastic index, and calculating the elastic index according to the proportion of the elastic factor; s3, constructing a distribution network elasticity index evaluation system according to the elasticity weight of each elasticity index; the elasticity indexes comprise a bearing index fa, a self-healing index fb, an efficiency index fc and an interaction index fd. According to the scheme, elastic index calculation formulas of bearing capacity, self-healing capacity, efficiency level and interaction capacity are set, a calculation formula of the power distribution network elastic evaluation system oriented to large-scale access of new energy is given, and the evaluation system can comprehensively evaluate the power distribution network under a novel power system. Therefore, large-scale access of regional new energy is guided.

Description

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Claims

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Application Information

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Owner STATE GRID ZHEJIANG ELECTRIC POWER
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