Nuclear power plant-based SOE data acquisition method

A data acquisition and nuclear power plant technology, applied in the direction of nuclear power generation, nuclear power plants, nuclear power plant control, etc., to achieve the effect of avoiding false alarms, avoiding excessive sensitivity, accurate and effective real-time judgment and processing

Active Publication Date: 2015-01-28
CHINA TECHENERGY +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] At present, the dejittering of industrial control equipment in the market generally adopts hardware equipment, and there will be an error of 4ms-100ms. This error cannot be tolerated by the safety equipment of nuclear power plants.

Method used

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  • Nuclear power plant-based SOE data acquisition method
  • Nuclear power plant-based SOE data acquisition method
  • Nuclear power plant-based SOE data acquisition method

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Embodiment Construction

[0049] Such as figure 1 As shown, the present invention provides a method for collecting SOE data based on nuclear power plants, including 32 forward acquisition channels 2 and SOE processors 3, and the forward acquisition channels 2 collect the signal of the field device 1, the field device is a switchgear, and then After judging by the SOE processor, if an event has occurred in this channel, it will be judged whether the signal collected by the channel is a real event or jitter (the collected switching value has jitter for a long time, and jitter cannot be counted as an event), and the real The time is uploaded to the control station 4, so how to distinguish the real event from the jitter, the software must make various judgments. Here, the SOE processor has a total of 32 channels, so each one has to be judged.

[0050] 1. SOE Processor

[0051] From the perspective of signal inflow, the signal first passes through the forward acquisition channel 1, and then enters the SOE p...

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Abstract

The invention provides a nuclear power plant-based SOE data acquisition method. According to the nuclear power plant-based SOE data acquisition method, signal acquisition devices which are in one-to-one correspondence with nuclear power plant filed apparatuses, and an SOE processor are provided, wherein the SOE processor is a single-chip microcomputer. The nuclear power plant-based SOE data acquisition method includes the following steps that: the signal acquisition devices acquire the states of the nuclear power plant filed switching apparatuses real time, and transmit the acquired states to the SOE processor; and the SOE processor performs processing according to the states of the switching apparatuses and change situations of the states, so that the operation situations of a current switching apparatus can be obtained, wherein the operation situations are divided into events, interferences or stable states, if the operation situation of the current apparatus is an event, the SOE processor reports the event to a control station. With the nuclear power plant-based SOE data acquisition method adopted, whether a situation is a real event or jitter can be distinguished.

Description

technical field [0001] The invention relates to a monitoring method for an instrument and control system of a nuclear power plant, in particular to an SOE data collection method used in the field of the instrument and control system of a nuclear power plant. Background technique [0002] The instrument and control system of nuclear power plants is the "nerve center" of nuclear power plants, and is an important equipment to ensure the safe and reliable operation of nuclear power plants. [0003] With the continuous development of automatic control technology, various types of digital input signals are widely used in control systems, especially in complex nuclear power plant automatic control or monitoring systems. For nuclear power plants, whether these switching signals can correctly reflect the action state and action time of the monitoring object will affect the safety and reliability of the entire power generation system. [0004] Sequence of events record SOE is widely ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G21D3/00G21D3/04
CPCG21D3/008Y02E30/00
Inventor 李伟张文欣张春雷石桂连
Owner CHINA TECHENERGY
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