Multi-power-supply, multi-segmentation multi-connection power distribution network fault recovery effect evaluation method

Abstract

The invention discloses a multi-power-supply, multi-segmentation multi-connection power distribution network fault recovery effect evaluation method, comprising steps of determining whether all segments in the power distribution network are reasonable in state changing in the process of fault recovery and expressing through a fault recovery coefficient K, 2) calculating fault electric quantity recovery rate in the multi-power-supply, multi-segmentation multi-connection power distribution network, wherein the fault electric quantity recovery rate fr is the ratio between recovered power supply quantity Pr in unit time and the power supply quantity P of the power distribution network in unit time and in a normal state, and 3) performing multi-power-supply, multi-segmentation, and multi-connection power distribution network fault recovery effect evaluation according to the faulted electric quantity recovery rate fr and the fault recovery process coefficient K to obtain a fault recovery reliability quantitative index Fr. If the Fr is negative, the recovery process is unreasonable, and, if the Fr is zero or positive, the fault recovery process is reasonable. Compared with the prior art, the invention is convenient and accurate.

Description

technical field [0001] The invention relates to an evaluation method, in particular to a multi-power multi-section multi-connection distribution network fault recovery effect evaluation method. Background technique [0002] There are many different fault recovery modes for multi-power, multi-section, and multi-connection distribution networks. For the same processing mode, different suppliers have different fault recovery strategies and different action processes. Traditionally, two methods are generally used to evaluate the action result of fault recovery: 1. Check whether the final result is consistent with the set result; 2. Check whether the action process is consistent with the set process. [0003] These methods can reflect the reliability of various fault recovery processes to a certain extent, but have the following shortcomings: [0004] 1. The operation of the fault recovery process has strict timing. For example, the recovery operation of the non-fault area canno...

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Problems solved by technology

Therefore, even if the action result state is correct, it cannot guarantee that the action process is safe;

[0005] 2. Only qualitative judgments can be made, and it is impossible to make judgments on indicators such as the power supply restoration ratio and restoration speed of non-faulty areas during the fault recovery process;

[0006] 3. When the input conditions are not met or the information is incomplete, the final result is often different from the set result, but different solutions provide different help to the final customer, which cannot be reflected;

[0008] 5. During the fault recovery process, possible wrong behaviors will lead to electrification in the maintenance section or expansion of the fault range

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