Signal distribution method and signal distribution system of digital instrument control system (DCS) of nuclear power plant

Abstract

The invention discloses a signal distribution method and a signal distribution system of a digital instrument control system (DCS) of a nuclear power plant. The signal distribution method includes: acquiring an instrument control function control demand list of the nuclear power plant; dividing the instrument system / equipment into a plurality of function groups in the instrument control function control demand list of the nuclear power plant according the main functions; distributing each function group of the function groups into a plurality of function units; distributing signals generated form the function units into different cards of different function unit cabinets; according preset distribution rules, detecting signal distribution results to acquire initial distribution modes; subjecting the initial distribution modes to reliability detection and subjecting the signal distribution results to optimization and adjustment according to detection results. By the signal distribution method and system, correlation influence among the function signals can be lowered, and security risk of the nuclear power plant due to potential failure / fault of the digital instrument control system of the nuclear power plant is lowered.

Description

technical field [0001] The invention belongs to the technical field of nuclear power, and more specifically, the invention relates to a signal distribution method and system of a digital instrument control system of a nuclear power plant. Background technique [0002] The instrumentation and control system of a nuclear power plant is an important part of the nuclear power plant. The safe, reliable and economical operation of the unit depends to a large extent on the performance level of the instrumentation and control system. The digital instrumentation and control system (DCS) of nuclear power plants currently used comprehensively applies technologies such as computer, communication, display and control, and provides advanced control and management means as the "nerve center" of the power plant to ensure the safe and reliable operation of nuclear power plants. [0003] Nuclear power plant DSC needs to meet the requirements of reliability, safety, and economy from design to ...

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Problems solved by technology

[0009] The purpose of the present invention is: for the above-mentioned nuclear power plant DCS signal distribution / grouping mode of the prior art, it is impossible to objectively and comprehensively evaluate the reliability, safety and economy of the entire DCS, and it is also impossible to evaluate the potential risk of the DCS reliability to the nuclear power plant. Influenced defects, providing a signal distribution method and system for a digital instrument and control system of a nuclear power plant

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