Periodic test device for pressurized water reactor nuclear power plant protection system

A protection system and periodic test technology, applied in the general control system, electrical test/monitoring, control/regulation system, etc., can solve the problem of not having the readback function of the injected signal, unable to judge the quality of the injected signal, and having no local parameter calculation, etc. problems, to achieve the effect of reliable test results, guaranteed reliability, and safe operation

Active Publication Date: 2015-09-09
CHINA TECHENERGY +1
View PDF5 Cites 16 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Currently known methods and equipment for performing periodic tests on the PWR nuclear power plant protection system can only perform a single protection channel test at the same time, and the verification criterion is only the voltage criterion; in addition, the existing test equipment does not have injection The

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Periodic test device for pressurized water reactor nuclear power plant protection system
  • Periodic test device for pressurized water reactor nuclear power plant protection system
  • Periodic test device for pressurized water reactor nuclear power plant protection system

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0056] This test device (KRG-TESTER) is designed to verify the important analog channel acquisition and processing system of the pressurized water reactor nuclear power plant. It defines the threshold output from the field sensor signal into the system to the KRG system threshold output (output to the protection logic system) Test. The function of the test device is to check the availability of the KRG system protection measurement channel during reactor operation. The test device provides an analog signal as close to the actual as possible, and injects the analog signal into the protection system. By checking the signal conversion error, whether the threshold relay is operating, and whether the operating threshold error meets the design requirements, it is judged whether the KRG system protection measurement channel When a failure occurs, the KRG periodic test is divided into three parts: the XU test (Channel test) to verify the protection channel threshold module, the display...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention provides a periodic test device for a pressurized water reactor nuclear power plant protection system, which comprises a real-time control system, and a computer in network connection with the real-time control system for executing a human-computer interaction function. The real-time control system is an embedded controller and comprises a central processor and multiple synchronous data communication channels, and the real-time control system is connected with a tested channel of the protection system via the synchronous data communication channels. When the test is executed, the computer provides a test signal and issues a test instruction, and the real-time control system injects the test signal to the tested channel of the protection system via the synchronous data communication channels, executes the test instruction issued by the computer, acquires a test result, and feeds the test result back to the computer. The test device also comprises a self-inspection and annual inspection device which periodically executes self-inspection on the real-time control system and annual inspection on precision verification of analog input and output channels.

Description

technical field [0001] The invention belongs to the technical field of nuclear power plant safety measurement and control, in particular to a periodic test device for a protection system of a pressurized water reactor nuclear power plant. Background technique [0002] The instrument control system is the nervous system of the nuclear power plant, which is directly related to the safe, reliable and stable operation of the nuclear power plant. The KRG system is a centralized control analog system, which is the key system of the instrument control system of the nuclear power plant. Its function defines the output from the on-site sensor, The input signal to the reactor protection system (RPR system), after the signal is processed in the KRG system (including square extraction, linearization, filtering, differentiation, lead-lag, etc.), threshold comparison is performed, when the signal exceeds the set limit After the value is set, the protection signal will be triggered and sen...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): G05B23/02
CPCG05B23/0208
Inventor 李景志刘旭东张红梅彭帅国汪波汪海艳孙洪涛郑伟智宋立新
Owner CHINA TECHENERGY
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap