Device and method for monitoring safety parameters of reactor protection system in nuclear power plant

Abstract

The invention discloses a nuclear power station reactor protection system safety parameter monitoring device and a nuclear power station reactor protection system safety parameter monitoring method. The device comprises a safety parameter transceiver module, a safety parameter processing module and an authority setting module, wherein the safety parameter processing module comprises a storage module, a verification module and a modification module. The method comprises acquiring an actual safety parameter, processing the actual safety parameter and setting a display interface. The device and the method are based on a digital reactor protection system and can calibrate a real-time safety parameter, and furthermore can transmit the calibrated parameter to a corresponding CPU unit for operation. Furthermore the display interface is utilized for visually displaying data and understanding the data, thereby performing quick and accurate processing on the parameter, and preventing errors in setting and modification. A parameter modification log is formed, and a parameter modification process can be traced in a log file. Furthermore batch parameter modification can be performed, thereby saving labor and improving operation efficiency.

Description

technical field [0001] The invention relates to the field of computer software, in particular to a safety parameter monitoring device and method for a nuclear power plant reactor protection system. Background technique [0002] The main function of the reactor protection system of a nuclear power plant is to prevent damage to the core and coolant system components, or reduce the degree of damage, by shutting down the reactor and (or) activating special safety devices under abnormal conditions or accident conditions. In order to ensure the integrity of the three major nuclear safety barriers, avoid causing a large amount of radioactive substances to escape, protect the safety of personnel, and prevent the environment around the nuclear power plant from being polluted. However, there are a large number of parameters in the reactor protection system of nuclear power plants (such as protection setting values, alarm limits, function generator parameters, filter parameters, etc.),...

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Problems solved by technology

[0004] 1) When performing modification, due to the limitation of human energy, the wrong parameters will be submitted to the reactor protection system by mistake, which will easily lead to major consequences (such as reactor shutdown, protection refusal)

[0005] 2) In this management mode, the parameter list cannot be automatically displayed together with AD / LD (LD: Logic Diagram, that is, logic diagram; AD: Analog Diagram, that is, simulation diagram), so it is not easy for maintenance personnel to understand and intuitively view parameters display, which can easily lead to parameter setting errors;

[0006] 3) It is impossible to manually modify the parameters in batches, resulting in low efficiency, and because there is no parameter modification log file, it is not convenient to trace the parameter modification process

[0007] 4) There is no special parameter modification interface, which is not convenient for parameter modification and comparison

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