Equipment multipath instruction control method and preferable control instruction output device of nuclear power station

A control instruction and instruction control technology, applied in nuclear power plant control, computer-implemented nuclear control, nuclear power generation, etc., can solve the problems of wrong control of field equipment in nuclear power plants, inability to cancel DCS wrong commands, wrong control signals, etc. The effect of reliability

Active Publication Date: 2015-09-23
中广核工程有限公司 +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0015] The present invention aims at the problem in the prior art that when an error occurs in the digital control system (DCS) of a nuclear power plant, a wrong control signal is sent to the field equipment of the nuclear power plant, and the preferred output control card used in the existing safety-level DCS platform cannot be cancelled. The wrong command issued by the DCS leads to the technical problem that the field equipment of the nuclear power plant is incorrectly controlled. A multi-channel command control method for nuclear power plant equipm...

Method used

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  • Equipment multipath instruction control method and preferable control instruction output device of nuclear power station
  • Equipment multipath instruction control method and preferable control instruction output device of nuclear power station
  • Equipment multipath instruction control method and preferable control instruction output device of nuclear power station

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Embodiment 1

[0066] Please refer to figure 2 , the embodiment of the present invention provides a nuclear power plant equipment multi-channel command control method, including steps:

[0067] S1. When the nuclear power plant control system is running, receive multiple instructions issued by the nuclear power plant control system for controlling the start or stop of the field equipment of the nuclear power plant; wherein, the nuclear power plant control system includes a digital control system and a backup disk, so The multiple instructions include a first instruction issued by the digital control system and a second instruction issued by the backup disk;

[0068] S2. Judging whether a common mode fault occurs in the digital control system, and obtaining a judgment result;

[0069] S3. When the judgment result is No, control the field device to start or stop based on the first instruction, and when the judgment result is Yes, control the field device to start or stop based on the second i...

Embodiment 2

[0083] Based on the same invention concept, please refer to image 3 , the embodiment of the present invention also provides a nuclear power plant preferred control command output device 1, which is used for controlling the start or stop of the field equipment of the nuclear power plant through the multi-channel command issued by the nuclear power plant control system 2, from the multi-channel command Select appropriate control instructions to control the start or stop of the field equipment of the nuclear power plant. The nuclear power plant control system 2 includes a digital control system DCS and a backup disk BUP. The multi-channel instructions include the first instruction issued by the digital control system DCS and the backup disk BUP. The second instruction; preferred control instruction output device 1 comprises:

[0084] A common-mode switch 11 connected to the digital control system DCS, used to output the first signal when the digital control system DCS has a comm...

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Abstract

The invention discloses an equipment multipath instruction control method and a preferable control instruction output device of a nuclear power station, and aims at solving the technical problems that in the prior art onsite equipment is in error control when a DCS has faults and emits an error control signal to the onsite equipment and a DCS platform of the present safety level is incapable of cancelling the error instruction of the DCS. The method comprises that S1) when a control system of the nuclear power station runs, multipath instructions emitted by the control system are received; S2) whether the digital control system has a common-mode fault is determined to obtain a determination result; and S3) when the determination result is no, the onsite equipment is started or stopped according to first instruction emitted by the digital control system, and when the determination result is yes, the onsite equipment is started or stopped according to second instruction emitted by a backup disk. Thus, the DCS error instruction is canceled when the DCS has errors, and the onsite equipment is effectively controlled based on the instruction emitted by the backup disk.

Description

technical field [0001] The invention relates to the technical field of nuclear power plant equipment drive, in particular to a nuclear power plant equipment multi-channel command control method and a nuclear power plant optimal control command output device. Background technique [0002] In the prior art, all the nuclear power plants under construction have adopted the digital I&C system (that is, the digital control system DCS, Digital Control System) to realize the protection function, control and monitoring function of the nuclear power plant. Compared with the traditional analog I&C system, DCS has many advantages, specifically, DCS improves the selection and adjustment of control and protection schemes, can better suppress and overcome interference and drift, realize redundant fail-safe settings, and has online implementation And diagnostic functions, improved man-machine interface functions, and make it unnecessary to carry out a lot of hardware development work in sys...

Claims

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Application Information

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IPC IPC(8): G21D3/00
CPCG21D3/001Y02E30/00
Inventor 王刚张黎明
Owner 中广核工程有限公司
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