Deterministic probabilistic safety analysis and evaluation method and system

A probabilistic safety analysis, deterministic technology, applied in the direction of probabilistic CAD, general control system, control/regulation system, etc., can solve problems such as unreliability, and achieve the effect of simplifying reliability and optimizing control system

Inactive Publication Date: 2008-05-21
ZAO戴尔康特公司
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Problems solved by technology

[0022] Therefore, the known methods and systems become unreliable in the case of safety analysis of complex manipulation processes such as the process of refilling nuclear fuel

Method used

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  • Deterministic probabilistic safety analysis and evaluation method and system
  • Deterministic probabilistic safety analysis and evaluation method and system
  • Deterministic probabilistic safety analysis and evaluation method and system

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Embodiment Construction

[0074] The invention is further illustrated with reference to the example of a system for safety analysis and evaluation of the handling process for refilling the core of a nuclear reactor WWER (Water / Water-Energy Reactor) designed by Russian Kurchatov Institute, Moscow.

[0075] The safety analysis of the maneuver process for refueling the core area is carried out using a system for safety analysis and evaluation of the maneuver process, the system comprising a central processing unit for performing the safety analysis and evaluation of the maneuver process, using Components for storing manipulation process data, and components for calculating probabilistic safety indices for each type of event and composite safety indices for the overall process.

[0076] Since the components of the data store contain, for example, information from references, such as process-specific safety rules, which serve as starting data for establishing lists of safety standards and limits beyond accep...

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Abstract

A method and systems of safety analysis of engineering processes for safety analysis of nuclear power stations are disclosed. A distribution of risk factors is analysed on different stages of the engineering process, and safety intervals are determined where safety conditions remain invariable. The method further includes analysis of failure transitions from one safety interval into another by means of cause-effect analysis. Based on the results of this analysis, deterministic safety models are created for possible scenarios of transition of failures from one safety interval into another. The method and systems provide quantitative safety analysis and evaluation for engineering processes in variable safety conditions and enable creating valid safety requirements to perform optimization of an engineering processes control system.

Description

technical field [0001] The present invention relates to a system and method of safety analysis and assessment which can be used in connection with various manipulation processes and in particular for analyzing and assessing the safety of a nuclear power plant (APP). Background technique [0002] Various existing modeling systems are designed only to perform probabilistic safety analysis, and to provide a qualitative assessment of the failure probability of the manipulation process. According to this approach, safety analysis is usually limited to simple characterization of operational elements called "targets" and possible failures called "initiating events", and subsequent one or Another function analysis of the probability of process interruption or target damage. [0003] Other methods use deterministic methods that examine the physical characteristics of the system (eg, temperature, pressure, etc.) and only evaluate the system based on this quantitative information. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50G21C17/00G21D3/00
CPCG05B23/0243G06Q10/0635G06F17/50G06Q10/06G06F2217/10G05B23/0291G06F2111/08G06F30/00
Inventor 米哈伊尔伊夫金耶维奇·斐多索夫斯基亚历山大伊夫金耶维奇·塞勒斯多比托夫瓦基姆伊哥列维奇·杜纳耶夫尤里乌拉迪米洛维奇·科比耶夫
Owner ZAO戴尔康特公司
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