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DCS signal ineffectiveness processing method and system for nuclear power station

A processing method and technology of a processing system, applied in the field of DCS signal invalidity processing methods and systems in nuclear power plants, can solve the problems of DCS systems without invalid processing methods and affect normal operation, etc., to reduce the probability of equipment damage, reduce casualties, The effect of the optimization function

Active Publication Date: 2011-06-01
中广核工程有限公司 +1
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Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a method and system for invalidation processing of DCS signals in nuclear power plants in view of the defect that the existing DCS system does not have a standard invalidation processing method and thus affects normal operation

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  • DCS signal ineffectiveness processing method and system for nuclear power station
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  • DCS signal ineffectiveness processing method and system for nuclear power station

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Embodiment Construction

[0024] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0025] The object of the present invention is to provide a method for processing invalidity of DCS signals of nuclear power plants. Reasonably optimize the data processing flow through the signal invalidity processing system, and improve the stability of the DCS system operation.

[0026] see figure 1 , is a flow chart of the first embodiment of the method for processing the invalidity of the DCS signal of the nuclear power plant according to the present invention. The processing method provided by the first embodiment of the present invention includes an invalidity detection step and a data processing step.

[0027] Firstly, in the invalidity detection step, it is detected whether the input DCS signal is valid, and if it is valid, it is output t...

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Abstract

The invention relates to a digital control system (DCS) signal ineffectiveness processing method and a digital control system (DCS) signal ineffectiveness processing system for a nuclear power station. The method comprises an ineffectiveness detecting step, namely detecting whether an input DCS signal is effective, if so, outputting the DCS signal to a downstream processing device to realize DCS logic control, and otherwise, executing a data processing step; and a data processing step, namely calling a DCS default value corresponding to the ineffective DCS signal from a default value databaseto replace a signal value of the ineffective DCS signal, and outputting the processed DCS signal to the downstream device. By performing ineffectiveness process on the DCS signal, the DCS default value can immediately substitute for the DCS signal when the DCS signal becomes ineffective; therefore, the function of the DCS is optimized, the control system of the nuclear power station can be kept running safely and stably, and the casualty chance of people and the damage chance of devices are reduced.

Description

technical field [0001] The invention relates to the technical field of nuclear power, and more specifically, to a method and system for processing invalidity of a DCS signal of a nuclear power plant. Background technique [0002] The wide application of DCS (Digital Control System) in nuclear power plants makes the transmission and processing of DCS signals extremely important. Therefore, it is necessary to consider the invalidation and processing methods of signals for DCS systems. [0003] At present, there is no standard invalidation processing method for CPR1000 nuclear power plants. When the DCS system finds that the signal is abnormal, it usually needs to stop running, and the engineer will perform manual intervention in time to correct the abnormal DCS signal, or further reach the acquisition or send DCS On-site inspection and maintenance of signal equipment. This not only affects the normal operation of the DCS system, but also does not take advantage of the enginee...

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Application Information

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IPC IPC(8): G05B19/418G21D3/00
CPCY02E30/40Y02E30/00Y02P90/02
Inventor 苏朝葵顾海霞赵岩峰廖惜民张焕欣周亮孙伟
Owner 中广核工程有限公司
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