Nuclear power plant safe operation evaluation method based on digitalized human-computer interface

A technology for safe operation and human-machine interface, applied in data processing applications, instruments, calculations, etc., can solve the problem of targeted evaluation of the digital human-machine interface, does not consider the characteristics and influence of the digital human-machine interface, and cannot clearly reflect the digitalization Human-machine interface reliability and security issues

Inactive Publication Date: 2013-02-06
CHINA NUCLEAR POWER ENG CO LTD
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Problems solved by technology

The data sources of these HRA methods do not consider the characteristics and impact of the digital human-machine interface. Therefore, these evaluation methods cannot make a targeted evaluation of the advantages and disadvantages of the digital human-machine interface, and the evaluation results cannot clearly reflect the digital human-machine interface. Machine Interface Reliability and Safety for Nuclear Power Plant Operations

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  • Nuclear power plant safe operation evaluation method based on digitalized human-computer interface
  • Nuclear power plant safe operation evaluation method based on digitalized human-computer interface
  • Nuclear power plant safe operation evaluation method based on digitalized human-computer interface

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Embodiment Construction

[0054] Preferred embodiments of the present invention will be described below, and it should be apparent to those skilled in the art that these embodiments are not limiting.

[0055] In the first embodiment of the present invention, the analysis of personnel reliability after an initiating event adopts the THERP+HCR mode. The human error probability is analyzed in three parts, that is, the diagnostic error probability P 1 , Diagnostic non-response probability P 2 , Operation error probability P 3 . For the evaluation of human error probability under digital human-machine interface, where P 1 No analysis, but a conservative valuation in accordance with conventional practice; P 2 Evaluated by HCR method; P 3 Evaluations were performed using the modified THERP method.

[0056] The Human Cognitive Reliability Model (HCR: Human Cognitive Reliability) is a method for calculating the probability of non-response of a person under time constraints. The HCR method assumes that af...

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Abstract

The invention discloses a nuclear power plant safe operation evaluation method based on a digitalized human-computer interface. By confirming diagnosis error probability P1, diagnosis no-response probability P2 and operation error probability P3, safe operation of a nuclear power plant is evaluated based on human error probability according to the three parameters. Therefore, the influence of the digitalized human-computer interface to the operation safety evaluation of the nuclear power plant during HRA (human reliability analysis) is corrected. The evaluation method not only can be used during HRA of the digitalized human-computer interface by using HCR (human cognitive reliability) and THERP (technique for human error rate prediction) methods, but also can be used for judging human-computer interface quality by using other conventional HRA methods.

Description

technical field [0001] The invention is an evaluation method for improving the safe operation of a nuclear power plant based on a digital human-machine interface, and belongs to the technical fields of nuclear power plant safety, probabilistic safety analysis (PSA) and human factor engineering (HFE) activities. Background technique [0002] With the development of computer, automation and other technologies and the improvement of reliability, the application of digital I&C system and human-machine interface in modern nuclear power plants has made it become a priority to reduce power plant transients, unexpected shutdowns and forced shutdowns, and improve the availability and safety of power plants. It is possible, and it also makes it possible to improve operation and maintenance efficiency and reduce operating costs. At present, the vast majority of nuclear power plants under construction in the world adopt digital I&C technology, and the conventional control systems and ma...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06Q50/06
Inventor 田秀峰姜兴伟周彧俞光卫田晖
Owner CHINA NUCLEAR POWER ENG CO LTD
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