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A Fast Multi-state Power System Reliability Calculation Method

A technology of power system and calculation method, applied in calculation, data processing applications, instruments, etc., can solve the problems of large amount of calculation, long calculation time, and little consideration of the common cause failure relationship of the original components, so as to reduce the calculation process, The effect of reducing time

Active Publication Date: 2020-07-10
ZHEJIANG UNIV
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Problems solved by technology

[0005] Disadvantage 1 of the existing technology: The existing reliability algorithm is mainly based on the traditional algorithm and the traversal method in terms of reliability comparison, which takes a long time and a large amount of calculation
[0006] Disadvantage 2 of the existing technology: the existing reliability algorithm mainly considers the two-state power system, while the actual system is mainly based on the multi-state power system
[0007] Disadvantage 3 of the existing technology: the current reliability calculation method rarely considers the common cause failure relationship between the original components (the common cause failure relationship refers to the simultaneous failure of multiple components due to the same reason, and the common cause failure relationship generally occurs between parallel elements

Method used

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  • A Fast Multi-state Power System Reliability Calculation Method
  • A Fast Multi-state Power System Reliability Calculation Method
  • A Fast Multi-state Power System Reliability Calculation Method

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Embodiment Construction

[0059] The present invention will be further described below in conjunction with drawings and embodiments.

[0060] Embodiments of the present invention are as follows:

[0061] Step 1: Find out the basic system, and use the reliability calculation formula of the general generating function to find the reliability of the basic system;

[0062] There are 5 kinds of system structures in this embodiment, such as Figure 2 ~ Figure 6 As shown, assuming that all component parameters are consistent, the reliability of components without common cause failure relationship is 0.98, the independent reliability of components with common cause failure relationship is 0.5, and the reliability of common cause failure relationship is 0.6.

[0063] In this embodiment, due to figure 2 The system 1 shown has the least total number of components and there is no common cause failure relationship between the components, so the basic system is as follows figure 2 For System 1 shown, the calcul...

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Abstract

The invention discloses a fast multi-state power system reliability calculation method. The fast multi-state power system reliability calculation method comprises the steps of: step 1, extracting a basic system from a plurality of multi-state power systems, and calculating reliability of the basic system; step 2, considering external parallel components in the multi-state power systems, and calculating to obtain external approximation reliability of the rest systems based on the reliability of the basic system; step 3, judging whether internal parallel components exist; step 4, and regarding the external approximation reliability directly obtained in the step 2 or internal approximation reliability obtained in the step 3 as the finally reliability. The fast multi-state power system reliability calculation method improves the traditional algorithm in the aspect of time through calculating the reliability of the rest systems, and reduces the calculation time.

Description

technical field [0001] The invention belongs to the reliability comparison of multi-state power systems, and in particular relates to a fast multi-state power system reliability calculation method. Background technique [0002] Reliability technology was first developed from the aerospace industry and the electronics industry after the Second World War. The task of the power system is to provide users with continuous and qualified electrical energy. Due to various equipment in the power system, including primary equipment such as distributed power supplies, transformers, transmission lines, and circuit breakers, and their supporting secondary equipment, different types of faults will occur, which will affect the normal operation of the power system and the normal power supply to users. Power system failures will cause varying degrees of economic losses to power companies, users and certain links in the national economy. With the acceleration of social modernization, product...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06Q10/06G06Q50/06
CPCG06Q10/0639G06Q50/06
Inventor 丁一胡怡霜
Owner ZHEJIANG UNIV
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