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Method for evaluating operation reliability based on quick sorting and block matrix

A technology of quick sorting and block matrix, which is applied in resources, instruments, electrical digital data processing, etc., can solve the problems of reliability evaluation taking a long time and complexity, and achieve the effect of fast and effective calculation

Active Publication Date: 2018-10-19
GUIZHOU POWER GRID CO LTD
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Problems solved by technology

In terms of reliability evaluation methods, since modern power systems have become extremely complex, with a large number of components, reliability evaluation takes a long time, and the speed of reliability evaluation algorithms needs to be improved. Therefore, a fast and efficient operation reliability method has been developed. Evaluation methods are extremely important

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  • Method for evaluating operation reliability based on quick sorting and block matrix
  • Method for evaluating operation reliability based on quick sorting and block matrix
  • Method for evaluating operation reliability based on quick sorting and block matrix

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Embodiment Construction

[0056] Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. It should be understood that the preferred embodiments are only for illustrating the present invention, but not for limiting the protection scope of the present invention.

[0057] Such as figure 1 As shown, the present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0058] This study provides a method for evaluating operational reliability based on quicksort and block matrix, such as figure 1 Specifically, the following steps are included:

[0059] Step S1: Establish the time-varying failure rate model of each component with the equipment life cycle and weather factors. In the absence of statistics on the component failure rate data, use the average failure rate to calculate the transformer, Failure rate of lines and switches. Specifically, the following sub-steps are included...

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Abstract

The invention relates to a method for evaluating operation reliability based on quick sorting and a block matrix. The method comprises the following steps: Step S1, establishing a time-varying failurerate model, and respectively calculating the failure rates of a transformer, a line and a switch considering the influence of an equipment life cycle and weather factors; Step S2, using a quick sorting method to perform descending sorting on element failure rates, and screening to obtain the first 80% of element failure rates; S3, using a block algorithm to perform blocking on the first 80% of element failure rates obtained by screening, storing block information, and searching a block link matrix according to failure blocks; and Step S4:making statistics of reliability indices of load pointsand a system of each simulation year, and obtaining average values which are the reliability index values of the load points and system. The method for evaluating operation reliability based on quicksorting and a block matrix effectively combines the advantages of the rapidity of the quick sorting method and the blocking algorithm and the processing of a complex system and the time sequence of asequential Monte Carlo simulation method, thereby forming an effective distribution system reliability evaluation algorithm, and thus can quickly and effectively calculate a distribution system reliability index.

Description

technical field [0001] The invention belongs to the technical field of power system operation reliability, in particular to an operation reliability evaluation method based on quick sorting and block matrix. Background technique [0002] Foreign countries started relatively early on the reliability evaluation of power distribution systems. As early as the 1930s, the former Soviet Union began to study the reliability of urban power grids. In the mid-1960s, Britain and Canada carried out research on the reliability of distribution networks. Management work, until the 1970s, the United States, Japan and European countries also carried out comprehensive statistical analysis of distribution network reliability. In the late 1980s, Roy Billiton and others published "Reliability Evaluation of Power System" (ReliabilityEvaluation of Power Systems), released a series of data and test results of Reliability Test System (RBTS), which promoted the research progress of power system reliab...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06Q10/06G06Q50/06G06F17/50
CPCG06Q10/06393G06Q50/06G06F30/20Y04S10/50
Inventor 何晔李欢丁宇洁李秀萍徐小东罗勇
Owner GUIZHOU POWER GRID CO LTD
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