Reliability Processing Method of Process Parameters in Nuclear Power Plant
A technology of process parameters and treatment methods, applied in the fields of plant parameter adjustment, nuclear engineering, nuclear power generation, etc., to achieve the effect of providing availability, ensuring availability and authenticity, and reducing impact
Active Publication Date: 2016-05-18
NUCLEAR POWER INSTITUTE OF CHINA
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[0003] The purpose of the present invention is to provide a process parameter reliability processing method of a nuclear power plant to solve the usability and authenticity of the control signal process parameters in the digital reactor control system, so as to improve the usability and authenticity of the control process parameter signals
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[0018] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.
[0019] Such as figure 1 As shown, a nuclear power plant process parameter reliability processing method specifically includes the following steps:
[0020] Step 1, collecting three input signals of the same process parameter of the control signal in the digital reactor control system, and performing over-limit processing;
[0021] Collect three input signals of the same process parameter of the control signal in the digital reactor control system, and judge whether each input signal is between the upper limit and the lower limit of the process parameter, if the input signal is between the upper and lower limits of the process parameter, Then the signal of this road is valid, and the mark indicates that the quality position KGX of this road is high level. If the input signal of this road is less than the lower limit or greater than th...
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The invention relates to the technical field of a nuclear power plant digitization reactor control system, and specifically discloses a nuclear power plant process parameter reliability processing method. The method comprises the following steps: 1. acquiring three input signals of a parameter in the same process and performing overrun value processing; 2. performing deviation processing on the three input signals of the parameter in the same process and making a threshold comparison so as to obtain out-of-tolerance values; 3.obtaining fault values of the three input signals of the parameter in the same process according to overrun values obtained in step 1 and the out-of-tolerance values obtained in step 2; and 4. obtaining reliable input signals according to the fault value of each input signal of the parameter in the same process. By using the method, the overrun value processing and out-of-tolerance processing can be performed on the control signals of a digitization reactor control system, so that the availability and trueness of control system signals can be ensured, and the influence of signal faults on a nuclear power plant can be reduced, thus the availability, reliability and economy of the nuclear power plant can be provided.
Description
technical field [0001] The invention belongs to the technical field of nuclear power plant digital reactor control systems, and in particular relates to a process parameter reliability processing method of a nuclear power plant. Background technique [0002] In the digital reactor control system of nuclear power plant, for the same process parameter, multiple measuring elements are usually designed to improve its reliability. However, in the actual operation process, there may be deviations in the parameters of the measurement results when the measurement components and channels are normal. The reason for this situation may be that the sampling tube of the instrument is blocked, there is air medium in the sampling line, the transmitter is blocked by dirt, and there is working fluid leakage in the measuring line. During the operation of the unit, when the deviation exceeds a certain limit, it is necessary to remind the operating personnel to intervene and contact the mainten...
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IPC IPC(8): G21D3/08G21C17/00
CPCY02E30/00Y02E30/30
Inventor 张英张瑞王华金王远兵刘艳阳
Owner NUCLEAR POWER INSTITUTE OF CHINA