Method and system for on-line monitoring of running state of nuclear power equipment

Abstract

The invention discloses a method and system for on-line monitoring of the running state of nuclear power equipment. The system includes a nuclear power equipment database; a model building module used for building a nuclear power equipment characteristic parameter on-line calculation model according to the nuclear power equipment database; and a nuclear power equipment running state diagnosis module used for analog calculation of a characteristic parameter predicted value of nuclear power equipment to be tested of the previous moment before the current moment according to the nuclear power equipment characteristic parameter calculation model, a contrastive analysis of the characteristic parameter predicted value and a real-time detection value of the characteristic parameter of the nuclear power equipment is made, and an on-line monitoring result of the running state of the nuclear power equipment is obtained according to the contrastive analysis. A nuclear power plant manager can discriminate abnormal or fault equipment among numerous nuclear power equipment according to the monitoring result, thereby providing a scientific basis for guiding equipment maintenance or replacement work, and improving operation safety and stability of the nuclear power plant.

Description

Technical field [0001] The invention belongs to the technical field of nuclear power equipment safety monitoring, and more specifically, relates to an online monitoring method and system for the operating status of nuclear power equipment. Background technique [0002] The information security environment of industrial control systems is in a stage of rapid change, and due to its own particularity, the information security issues of nuclear power equipment in nuclear power plants deserve particular attention. Nuclear power plant information security is an important factor affecting the development of nuclear power. This security is reflected in the operating performance of nuclear power plants that cannot be directly evaluated quantitatively, but can be characterized by evaluating its safety performance. In order to meet the needs of the development of the nuclear industry, nuclear power facilities are required to implement the multi-layered "defense in depth" safety protect...

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Problems solved by technology

[0005] However, at present, the health status assessment and management of nuclear power equipment mainly rely on personal subjective knowledge and experience accumulation. This kind of nuclear power equipment health status assessment method based on the subjective awareness and experience accumulation of managers is not rigorous and lacks theoretical support and scientific knowledge. Guidance, leading to low credibility of the health status assessment results of nuclear power equipment, high misjudgment rate, and even incalculable property losses to nuclear power plants, the safe and stable operation of nuclear power plants cannot be guaranteed at all

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