Method and system for construction, synchronization, presentation and analysis of nuclear power dcs offline database

Abstract

A method and system for constructing, synchronizing, presenting and analyzing an off-line database of a nuclear power DCS, wherein the method for constructing an off-line database of a DCS includes: analyzing and obtaining the data structure of an online control database of a DCS, in which the control logic of a nuclear power unit is stored , parameters and configuration information; reconstruct the structure and configuration of the offline database according to the data structure of the online control database; reconstruct and package the online control database data obtained by analysis to form the offline database of DCS. Due to the construction of the DCS offline database, the control logic, parameters and configuration information corresponding to the online control database are completely consistent, and the synchronization, presentation and analysis methods and systems of the offline database are provided, so that professionals no longer need to query and analyze the DCS control logic. Entering the core control area of ​​the unit with a deep and strict security level, you can efficiently view and analyze the control logic of the unit through a personal office computer, which can significantly improve work efficiency.

Description

technical field [0001] The invention relates to the technical field of nuclear power plant DCS databases, in particular to a method and system for constructing, synchronizing, presenting and analyzing an offline nuclear power DCS database. Background technique [0002] In the current nuclear power digital control system (Digital Control System, digital control system, English abbreviation DCS) field, there are two known methods for querying and analyzing nuclear power plant DCS logic diagrams: one is through paper or electronic system design documents, The second is through the DCS configuration software. [0003] For paper or electronic system design documents, the amount of data is large. Take the imported EPR (European Pressurized Water Reactor) reactor type as an example. EPR belongs to the third-generation nuclear power technology, and its DCS has a high degree of automation, safety and redundancy. , the control logic is more complicated. Taking Taishan EPR nuclear pow...

AI Technical Summary

Problems solved by technology

Secondly, the configuration software is expensive and has a limited number of licenses. For example, the typical configuration of an EPR stack is 3 terminals, which is limited in number and cannot be used by multiple people at the same time. The configuration software is stand-alone software and does not have network scalability. Cost-effective installation of configuration software on the personal office computers of all required employees will make the database upgrade, maintenance and version management of so many software extremely complicated. Once the actual unit database changes (after the nuclear power unit is commissioned The database changes frequently in the first few fuel cycles), and the workload of synchronously upgrading all terminals to the new version of the database is very large. Once the update is not timely, there will be deviations from the actual control logic of the unit

In addition, the DCS configuration software has a strong coupling with the on-site control system. Once a misoperation occurs during the viewing process, it will cause great hidden dangers to the safe and stable operation of the nuclear power unit.

[0005] In summary, the current DCS control logic query of nuclear power plants has many restrictive conditions and low efficiency

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