A closed-loop verification system and method for dcs transformation of nuclear power plant analog instrument control system

Abstract

The invention relates to a closed-loop verification system and method for nuclear power plant simulation instrument control system DCS transformation. The system includes a simulation server connected through network communication, an operation display terminal and a virtual DCS server; the operation display terminal receives the initial working condition and verification operation input by the user The information is sent to the simulation server, and the simulation results of the simulation server and the DCS verification simulation results of the virtual DCS server are displayed; the simulation server simulates the equipment status and physical parameters of the nuclear power plant system based on the initial working conditions and the simulation model of the full-range simulator process system, and outputs Simulation data; after the virtual DCS server receives and processes the simulation data, it returns DCS operation instructions to the simulation server, and outputs the DCS simulation results to the operation display terminal for display. The invention realizes the closed-loop test and verification of the DCS transformation of the analog instrument control system of the nuclear power plant, which is conducive to discovering potential problems in major digital transformation in advance, realizing the controllable risk of the upgrade implementation, the controllable construction period, and meeting the safe and stable operation requirements of the unit.

Description

technical field [0001] The invention relates to the technical field of nuclear power, and more specifically relates to a closed-loop verification system and method for DCS transformation of a nuclear power plant analog instrument control system. Background technique [0002] At present, digital instrumentation and control technology is becoming more and more mature, but the analog instrumentation and control system equipment of some nuclear power units in service is aging, spare parts are out of production, the failure rate is increasing, and the safety and economy are significantly reduced. Therefore, it is very necessary to upgrade the digital instrument and control system of this kind of nuclear power unit. Compared with newly built digital nuclear power units, the step-by-step DCS upgrade needs to consider the risk of equipment interface with other systems of the unit and the risk of construction period, and there is no corresponding quality risk of comprehensive cold an...

AI Technical Summary

Problems solved by technology

[0002] At present, digital instrumentation and control technology is becoming more and more mature, while the equipment of analog instrumentation and control system of some nuclear power units in service is aging, the production of spare parts is discontinued, the failure rate increases, and the safety and economy are significantly reduced.

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