Power distribution network elastic capability evaluation method and system under multi-energy coupling

A distribution network and elasticity technology, applied in the field of power system, can solve the problems of single form of elasticity evaluation index, limited application, ignoring correlation, relationship and influence direction, etc. Effect

Pending Publication Date: 2020-10-16
SHANDONG UNIV +2
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Problems solved by technology

[0005] (1) The form of the elastic evaluation index adopted is single, and a complete evaluation index system has not been formed;
[0006] (2) There are no indicators involving other energy forms such as gas and heat, and it is impossible to quantify the impact of multi-energy coupling

Method used

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  • Power distribution network elastic capability evaluation method and system under multi-energy coupling
  • Power distribution network elastic capability evaluation method and system under multi-energy coupling
  • Power distribution network elastic capability evaluation method and system under multi-energy coupling

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Embodiment 1

[0035] Such as figure 1 As shown, this embodiment provides a method for evaluating the elastic capacity of distribution network under multi-energy coupling, including:

[0036] S1: Obtain the elastic evaluation index that affects the elastic capacity of distribution network under multi-energy coupling;

[0037] S2: Use the gray relational analysis method to judge the correlation between each elasticity evaluation index;

[0038] S3: According to the operation mechanism of the distribution network under multi-energy coupling, the logical analysis method is used to determine the index correlation and influence direction among the relevant indexes;

[0039] S4: According to the relationship between the indicators and the direction of influence, the network analysis method is used to construct the distribution network elasticity evaluation index model, and the distribution network operation data to be evaluated is evaluated for the distribution network elasticity capability.

[...

Embodiment 2

[0075] This embodiment provides a distribution network resilience evaluation system under multi-energy coupling, including:

[0076] The index acquisition module is used to obtain the elastic evaluation index that affects the elastic capacity of the distribution network under multi-energy coupling;

[0077] The correlation judgment module is used to judge the correlation between each elasticity evaluation index by adopting the gray relational analysis method;

[0078] The association relationship determination module is used to determine the index association relationship and influence direction between the associated indicators by using the logic analysis method according to the operation mechanism of the distribution network under multi-energy coupling;

[0079] The evaluation module is used to construct the distribution network elasticity evaluation index model by using the network analysis method according to the index correlation and influence direction, and evaluate the ...

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Abstract

The invention discloses a power distribution network elastic capability evaluation method and system under multi-energy coupling. The method comprises the following steps: acquiring an elastic evaluation index influencing the elastic capacity of the power distribution network under multi-energy coupling; adopting a grey correlation analysis method to judge the correlation among the elastic evaluation indexes; according to a power distribution network operation mechanism under multi-energy coupling, determining an index association relationship and an influence direction between associated indexes by adopting a logic analysis method; and according to the index association relationship and the influence direction, constructing a power distribution network elasticity evaluation index model byadopting a network analytic hierarchy process, and performing power distribution network elasticity capability evaluation on the to-be-evaluated power distribution network operation data. Under the multi-energy coupling system, influence factors influencing the elastic capacity of the power distribution network are analyzed, the incidence relation of the index pieces is fully considered, a multi-dimensional elastic evaluation index system is constructed, and the elastic capacity of the power distribution network under the multi-energy coupling system is comprehensively evaluated.

Description

technical field [0001] The invention relates to the technical field of power systems, in particular to a method and system for evaluating the elastic capacity of a distribution network under multi-energy coupling. Background technique [0002] The statements in this section merely provide background information related to the present invention and do not necessarily constitute prior art. [0003] With the increasing frequency of large-scale power outages caused by extreme natural disasters, the concept of resilience has gained attention in the power system. Specifically at the distribution network level, the resilience of the distribution network reflects the extreme When a disturbance event occurs, minimize the scope of the disturbance, reduce the load loss during the failure process, and restore the ability to the normal load supply state as soon as possible. Effective evaluation of distribution network resilience is an important theoretical basis to guide the constructio...

Claims

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Application Information

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IPC IPC(8): G06Q10/06G06Q50/06
CPCG06Q10/06393G06Q50/06Y04S10/50
Inventor 张文杜雅昕邱吉福杨天佑李志泰陈明安树怀魏振时翔史蕾玚孙振海
Owner SHANDONG UNIV
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