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Dynamic reliability integrated analysis system for digital instrument control system

An instrument control system and analysis system technology, which is applied in the fields of electrical digital data processing, instruments, design optimization/simulation, etc., and can solve the problems of commercial software without Markov/CCMT method.

Inactive Publication Date: 2017-08-18
SHANGHAI NUCLEAR ENG RES & DESIGN INST CO LTD +1
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  • Summary
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  • Description
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Problems solved by technology

Among them, the DFM method currently has a mature commercial software DYMONDA, but there is no commercial software for the Markov / CCMT method at home and abroad.

Method used

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  • Dynamic reliability integrated analysis system for digital instrument control system
  • Dynamic reliability integrated analysis system for digital instrument control system
  • Dynamic reliability integrated analysis system for digital instrument control system

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Embodiment Construction

[0042] In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0043] Based on the Markov / CCMT method theory, using C# as the basic development language, it completes the dynamic reliability integrated analysis system for digital instrument control systems that integrates simulation, calculation, and result analysis functions, and can be applied to software platforms. At the same time, the built software platform is applied to the actual AP1000 main water supply system for debugging, and a comprehensive reliability analysis is carried out on the main water supply part of the AP1000 digital instrument control system. The scope of analysis includes the failure probability of the system and the weak points of the system.

[0044] When Markov / CCMT conducts reliability analysis on the system, throu...

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Abstract

The invention provides a dynamic reliability integrated analysis system for a digital instrument control system. The integrated analysis system comprises five functional parts including a simulation instruction generation part, a system operation interval division part, a simulator simulation part, a main program calculation part and a result analysis part. Based on a Markov / CCMT method theory, the dynamic reliability integrated analysis system used for the digital instrument control system and integrating simulation, calculation and result analysis functions is finished by taking C# as a basic development language and can be applied to a software platform; the established system is applied to an actual AP1000 main water supply system for performing debugging; the main water supply part of the AP1000 digital instrument control system is subjected to comprehensive reliability analysis; and the analysis range comprises a system failure probability, system weak points and the like.

Description

technical field [0001] The invention relates to a probability safety analysis of a digital instrument control system, in particular to a dynamic reliability integrated analysis system of a digital instrument control system. Background technique [0002] The reason why traditional reliability analysis methods cannot be fully applied to digital I&C systems is that digital I&C systems rely on computer hardware and software control platforms to perform various complex nuclear power plant controls. Compared with pure hardware systems, due to the time dynamic characteristics of digital equipment, it has different failure modes, and in the development of computer software redundancy, the extrapolation of computer failure statistics and the prediction and verification of common cause failure modes, etc. There are difficulties in all aspects. All these factors have led to new problems in the quantitative evaluation of the safety and reliability of digital I&C systems in nuclear powe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50
CPCG06F30/20
Inventor 顾诞英缪惠芳张赫男曹建元李文韬张彬彬马志才张淑慧胡剑全尹九波赵旭
Owner SHANGHAI NUCLEAR ENG RES & DESIGN INST CO LTD
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