Evaluation method for distribution network reliability
An evaluation method and technology of distribution network, applied in the field of power distribution network, can solve the problems of combination, difficulty in finding unreasonable or deficiencies in power grid planning and construction, and inability to make timely adjustments, so as to achieve the effect of ensuring reliable operation
Active Publication Date: 2011-04-13
STATE GRID TIANJIN ELECTRIC POWER +1
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At present, the evaluation of distribution network reliability mainly includes reliability statistical analysis methods, power supply reliability information analysis, power grid construction analysis related to power supply reliability, analysis of power supply reliability improvement measures, etc. Some of these methods focus on theoretical research However, it is difficult to play a guiding role in practical applications.
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[0037] Embodiments of the present invention will be described in further detail below in conjunction with the accompanying drawings.
[0038] A distribution network reliability evaluation method, comprising the following steps:
[0039] 1. Transform the evaluation of distribution network reliability into the analysis of distribution network outage factors, and decouple the distribution network outage factors;
[0040] This step takes into account various factors that affect the continuous and reliable power supply of the distribution network, their mode of action and control strategy, and transforms the analysis of the reliability of the power supply of the distribution network into the analysis of the factors of power outages, in order to reduce the reliability of various influencing factors Interrelationships among them, decoupling the power outage factors of the distribution network, such as figure 1 As shown, the power outage factors are decoupled into three aspects: the ...
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The invention relates to an evaluation method for distribution network reliability, comprising the following steps: (1) transferring evaluation of the distribution network reliability to analysis on the distribution network blackout power factors, and carrying out decoupling treatment on the distribution network blackout power factors; (2) using an analytic hierarchy process (AHP) to establish an evaluation system of distribution network reliability; (3) establishing a comprehensive quantitative model of the distribution network reliability; (4) formulating an evaluation standard of the distribution network reliability; and (5) specifying weight indicators of the distribution network reliability. In the method, the evaluation theory of the distribution network reliability is combined with an actual power grid, so that the evaluation of the distribution network reliability is transferred to the analysis on the distribution network blackout factors and the evaluation system, the evaluation model, the evaluation standards and the evaluation indicator weights of the distribution network reliability are established, thus enabling to reflect the existing reliability level of the distribution network from a plurality angles, thereby playing a huge role in works, such as related decisions, high-reliability power supply area distribution network plans and the like on evaluation of the distribution network reliability, formulation of high-reliability distribution network establishment principle and establishment direction, and the like.
Description
technical field [0001] The invention belongs to the field of power distribution network, in particular to a distribution network reliability evaluation method. Background technique [0002] During the operation of power system distribution network, high requirements are put forward for the reliability of distribution network. How to analyze and evaluate the reliability of distribution network has been concerned by various aspects. At present, the evaluation of distribution network reliability mainly includes reliability statistical analysis methods, power supply reliability information analysis, power grid construction analysis related to power supply reliability, analysis of power supply reliability improvement measures, etc. Some of these methods focus on theoretical research However, it is difficult to play a guiding role in practical applications. Some of them only analyze the actual accidents and do not consider the causes of accidents as a whole. Therefore, the existi...
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Inventor 李晓辉徐晶李达葛少云申刚刘中胜郜士其张来吴彬
Owner STATE GRID TIANJIN ELECTRIC POWER
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