Method for automatically testing DCS (Digital Control System) control cabinet

A test method and control cabinet technology, applied in the fields of nuclear reactor monitoring, reactors, nuclear power generation, etc., can solve the problems of poor generality of test methods and inability to adapt to technological development, DCS can not achieve multi-point testing, etc., to achieve the effect of ensuring continuity

Active Publication Date: 2011-09-14
CHINA TECHENERGY +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] This solution firstly solves the problem that DCS cannot realize multi-point testing in the prior art, and then solves the problem that the test method has poor versatility and cannot adapt to technological development.

Method used

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  • Method for automatically testing DCS (Digital Control System) control cabinet
  • Method for automatically testing DCS (Digital Control System) control cabinet
  • Method for automatically testing DCS (Digital Control System) control cabinet

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] like figure 2 As shown, the test method of this method includes the following functional modules:

[0032] Display module: used to display various information of the operation module and control module;

[0033] The display module uses the display screen of the industrial computer to display the test selection input by the operator and the feedback results of the corresponding test, and at the same time display the control interface and selection interface of each test program. , process and equipment are clear at a glance.

[0034] Operation module: used to input various test commands to the control module;

[0035] Control module: After receiving the test command from the operation module, call the corresponding test program to execute and send the generated test signal to the conditioning module, and is responsible for receiving the feedback information from the conditioning module, and output the result on the display module.

[0036] The test program received a...

Embodiment 2

[0045] On the basis of Embodiment 1, a bias program is set on the conditioning module. The bias program belongs to the category of AO conditioning. It performs voltage compensation on the basis of the standard voltage test signal sent by the control module, and the compensated voltage is output after conditioning. Unconventional current and voltage test signals are used to perform over-limit tests on the DCS control cabinet and test the bearing capacity of the IO terminals. In this scheme, the range of voltage compensation is set to ±2V, and the unconventional current test signal output after conditioning is 0~ 24mA, voltage test signal is -2 ~ 12V.

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PUM

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Abstract

The invention discloses a method for automatically testing a DCS (Digital Control System) control cabinet, relating to the field of automatic control. A display module, an operation module, a control module and a conditioning module are included, wherein the display module is used for displaying various kinds of information of the operation module and the control module; the operation module is used for inputting various test commands to the control module; after receiving the test commands of the control module, the control module calls a corresponding test program to execute, transmits a generated test signal to the conditioning module, is responsible for receiving feedback information of the conditioning module, and outputs the result on the display module; and the conditioning module is used for conditioning the test signal transmitted by the control module and transmitting the conditioned test signal to a corresponding IO (Input Output) terminal in the DCS control cabinet, receiving a feedback signal of the IO terminal, and transmitting the conditioned feedback signal to the control module. By adopting the scheme, the testing state and an expected result can be reflected in real time, a control loop of a process system can be simulated through linkage of a plurality of test programs, a specific testing function can be realized, the testing efficiency is improved, and human resources are saved.

Description

technical field [0001] The invention relates to the field of automation control, in particular to a method for detecting any IO terminals in a DCS control cabinet of a nuclear power plant simultaneously or in batches. Background technique [0002] The DCS (Digital Instrument Control System) of a nuclear power plant is the key equipment of a nuclear power unit and an important part of a nuclear power plant. The DCS interconnects various controllers, instruments and instrumentation equipment on site to form DCS control cabinets one by one. The DCS includes protection systems, The control system, safety shutdown system, security system and auxiliary system, etc., each system uses the required instruments and control equipment to complete the automatic detection and control functions of most of the nuclear power plant process, so the safe, reliable and economical operation of the nuclear power plant unit is in the To a large extent, it depends on the performance level of DCS. Th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G21C17/00
CPCY02E30/30
Inventor 汪海艳郄永学姜博朱郁朱毅明马吉强李相建刘元刘伟胡劲松梁中起谢志平赵爽程启英张彦哲彭帅国古丹孟广国高连国支源
Owner CHINA TECHENERGY
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