Method and system for evaluating reliability of power supply system under common cause failure
A power supply system and reliability technology, applied in the direction of electrical digital data processing, instruments, data processing applications, etc., can solve the problems of not considering the influence of the performance sharing mechanism on the reliability level of the power system, and the difficulty of reliability modeling and analysis.
Pending Publication Date: 2022-04-08
BEIJING INST OF ELECTRONICS SYST ENG
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[0004] At present, the research on the reliability of power supply system only focuses on the characteristics of multi-stage and multi-state, and does not consider the performance sharing mechanism, k / n(G) redundancy mechanism, and common cause failure on the reliability level of the power system in the entire task cycle. Impact
Moreover, due to the complexity of the power system, it is difficult to carry out reliability modeling analysis by comprehensively considering the above factors.
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[0058] In the following description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of one or more embodiments. It may be evident, however, that these embodiments may be practiced without these specific details.
[0059] In the description of the present application, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower" and so on is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description. It is not intended to indicate or imply that the device or element referred to must have a particular orientation, be constructed, or operate in a particular orientation, and thus should not be construed as limiting the application. Unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be interpreted...
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The embodiment of the invention discloses a method and a system for evaluating the reliability of a power supply system under common cause failure. The method comprises the following steps: S1, constructing a power supply system reliability model under the influence of common cause failure according to the structural composition, the operation mechanism and the task requirement of the power supply system; s3, according to the reliability model of the power supply system, calculating the probability of occurrence of a common cause failure process at any moment; and S5, constructing a binary general generation function according to the probability of occurrence of the common cause failure process, and calculating the system reliability of the power supply system in the whole task period under the influence of the common cause failure. According to the method, the characteristics of multi-stage, multi-state, performance sharing, k / n redundancy mechanism and the like of the power supply system are comprehensively considered, the reliability level of the system at any moment under the common cause failure influence can be quickly solved, and a solid theoretical foundation is laid for ensuring that the power supply system outputs high-quality and high-reliability electric energy; the method plays an important guiding role in optimizing and maintaining a power supply network system and improving social and economic benefits.
Description
technical field [0001] The present application relates to the technical field of reliability evaluation, and more specifically, the present application relates to a method and system for evaluating the reliability of a power supply system under common cause failure. Background technique [0002] The power supply system is an important infrastructure related to national energy security and national economic stability, an indispensable production resource in the manufacture of various daily life and military products, and an important source of power to promote the development of the national economy. The power supply system can be divided into different task stages according to different power consumption periods: such as peak power consumption period and low power consumption period (multi-stage); each generator can have multiple power generation levels as its performance degrades and repairs ( 0Kw, 50Kw, 100Kw), power consumption will be in multiple state levels (multi-stat...
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IPC IPC(8): G06F30/20G06Q10/06G06Q50/06G06F119/02
Inventor 程辰岳晓蕊陈佳希原艳斌
Owner BEIJING INST OF ELECTRONICS SYST ENG