Numerical model processing method for simulation of digital instrument control system of nuclear power plant

Abstract

The invention discloses a numerical model processing method for simulation of a digital instrument control system of a nuclear power plant. The numerical model processing method comprises the steps of: a) firstly, determining important input signals of the digital instrument control system of the nuclear power plant by comprehensively analyzing the main performance indexes or requirements of the digital instrument control system of the nuclear power plant; and b) then according to the input signals and relevant digital sampling module parameters of the digital instrument control system of the nuclear power plant, modifying a numerical model of a simulated program, i.e. respectively increasing digital sampling module models and relevant sampling time steps to the input signals and setting relevant processing time steps for control channels. By conducting digital processing to the instrument control system in the simulated program, the digital instrument control system can be simulated more really and can be optimized, the goal of guiding actual design through simulation researches is achieved, the simulation result is used for guiding field debugging and power operation, and the availability, the reliability and the economy of the nuclear power plant are improved.

Description

technical field [0001] The invention relates to the field of instrument control systems of nuclear power plants, in particular to a numerical model processing method for simulation of digital instrument control systems of nuclear power plants. Background technique [0002] The purpose of the simulation research of nuclear power plant instrumentation and control system is to optimize the parameters of each control system through the simulation research of the digital reactor control system of nuclear power plants, provide the parameter setting values ​​of each system, and provide correct guidance for on-site commissioning and power operation. In order to ensure the smooth progress of the grid-connected power generation of nuclear power plants. The existing nuclear power plant I&C system simulation technology has the following two methods: [0003] [Document 1] Application of Computer Simulation Technology in Control System of Qinshan Nuclear Power Phase II Project, Zhang Yin...

AI Technical Summary

Problems solved by technology

However, these three technical solutions are all based on the DCS configuration platform, that is, the actual control system adopted by the control system, so the simulation fidelity is high, but the inherent structure of the DCS configuration software limits the development of simulation functions

[0005] Document 1 is simulating the control system using analog technology, so it does not involve the time delay brought by digital technology to the instrument control system

However, the full-range simulator discussed in Document 2 uses the actual design of the instrument and control system, so it does not mention how to carry out corresponding digital processing on the existing simulation program model in the design stage, so as to realize the digital instrument and control system more realistically. Simulate the system and optimize the design of the system to achieve the purpose of guiding on-site commissioning

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