CN103456378B - A kind of Real time auto measure method of protection Channel Response Time - Google Patents
A kind of Real time auto measure method of protection Channel Response Time Download PDFInfo
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- CN103456378B CN103456378B CN201210180226.5A CN201210180226A CN103456378B CN 103456378 B CN103456378 B CN 103456378B CN 201210180226 A CN201210180226 A CN 201210180226A CN 103456378 B CN103456378 B CN 103456378B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
Abstract
The present invention relates to a kind of Real time auto measure method of protection Channel Response Time, include successively: one, loop to be measured to protection rack, input a signal below or above alarm card alarm setting value；Two, by the first width contact of relay, make signal step to higher or lower than alarm card alarm setting value；Three, the second width contact simultaneously triggered with relay the first width contact is introduced, it is thus achieved that the time point t0 of alarm card input step signal；Four, time t1 during alarm card alarm actuating contact action is obtained；Five, the response time t=t1 t0 in protection rack loop to be measured is obtained.The present invention can carry out the Real time auto measure of response time online to protection system simulation passage, need not dismantle fastener during testing, it is not required that carries out loaded down with trivial details wiring work；Need not testing crew during test intervene too much, to reduce the probability of maloperation, improve the economy of nuclear power plant, reliability, maintainability.
Description
Technical field
The present invention relates to a kind of Real time auto measure method of protection Channel Response Time, particularly relate to
And a kind of Real time auto measure method of pressurized-water reactor nuclear power plant protection Channel Response Time.
Background technology
Reactor protection measures the key components that system is nuclear power plant instrument Ore-controlling Role, for nuclear power station
Safe operation plays an important role, and its Measurement channel whether working properly directly influences nuclear power station
Safety.According to security legislation and the requirement of relevant criterion, it is necessary to have means that protection passage is carried out fixed
Phase tests, i.e. " T1 test ".
The function of T1 assay device is the availability of check protection Measurement channel during reactor operation.By
T1 assay device provides sends into, as close possible to actual analogue signal, the measurement loop that need to test, and checks letter
Number transformed error, whether response time error, the whether action of threshold value relay, action threshold error surpass
Go out the prescribed limit of protection system design, significant for ensureing the safe operation of nuclear power plant.
In existing T1 assay device designs, by sending analog quantity alarm voltage signal, connect the most again
The contact signal of the alert actuating of relay of receiving.100mS is can only achieve the soonest owing to CPU performs the cycle, and
The time issuing a signal to receive signal is a process cycle.Therefore, such speed of service can not expire
The response time of foot millisecond dimension accuracy is measured.
Currently, PWR nuclear power plant protection Channel Response Time can only manually have been tested, and does not has
Method realizes Real time auto measure.During testing, need to dismantle fastener, carry out loaded down with trivial details wiring work,
So causing the test period the longest, the burden of testing crew is the heaviest, is susceptible to maloperation.
Therefore need badly and a kind of Real time auto measure method of novel protection Channel Response Time is provided.
Summary of the invention
The technical problem to be solved in the present invention is to provide one and improves test efficiency, significantly reduces test
The burden of personnel, decreases the side of the protection Channel Response Time Real time auto measure of misoperation probability
Method.
For solving above-mentioned technical problem, the on-line automatic survey of the present invention a kind of protection Channel Response Time
Method for testing, comprises the following steps successively:
The first step, when test upper limit alarm response time, loop to be measured to protection rack, input
One signal less than alarm card alarm setting value；When the response time that test lower limit is reported to the police, protection is surveyed
Amount rack loop to be measured, inputs a signal higher than alarm card alarm setting value；
Second step, when test upper limit alarm response time, by the first width contact of relay, make letter
Number step is to higher than alarm card alarm setting value；When the response time that test lower limit is reported to the police, pass through relay
The first width contact, make signal step to less than alarm card alarm setting value；
The second width contact that 3rd step, introducing trigger with relay the first width contact simultaneously, it is thus achieved that alarm card
The time point t0 of input step signal；
Time t1 when the 4th step, acquisition alarm card alarm actuating contact action；
5th step, obtain the response time t=t1-t0 in protection rack loop to be measured.
Signal in the first step is the signal of lower than alarm card alarm setting value or high 5%.
In second step, the signal after step is the signal of high or low 5% than alarm card alarm setting value.
Utilize the accident order recording software of Invensys I/A system, by time point t0 and t1, directly remember
Record is inside On-off signal fastener FBM207, and by t0 and t1, synchronous transfer is to AIM data base
In；After sending reading data command, the corresponding time in accident order recording software transfer AIM data base
Data, write CPU, and calculate response time t=t1-t0.
The present invention can carry out the Real time auto measure of response time online to protection system simulation passage,
Need not during test dismantle fastener, it is not required that carry out loaded down with trivial details wiring work；Need not during test
Testing crew is intervened too much, to reduce the probability of maloperation, improve nuclear power plant economy, can
By property, maintainability.
Accompanying drawing explanation
Fig. 1 is protection Channel Response Time principle explanatory diagram.
Detailed description of the invention
The present invention is further detailed explanation with embodiment below in conjunction with the accompanying drawings.
1, ultimate principle
The present invention is mainly from how measuring protection Channel Response Time, how realizing input voltage signal
Several aspects such as transition, how Quick Acquisition response time are designed.
How to measure protection Channel Response Time
Accompanying drawing 1 is shown in the ultimate principle explanation of protection Channel Response Time Real time auto measure.At accompanying drawing 1
In, signal A is the time point of alarm card input step signal, is recorded as t0；Signal B is alarm card report
Time point during alert contact action, is recorded as t1；Therefore, to be both poor for the response time of alarm circuit
Value: t=t1-t0.
As a example by the response time of upper limit alarm is tested, during test, it is desirable to testing stand is automatically added to a ratio
The signal of alarm setting value low 5%, now loop is in the state not yet reported to the police.Then by this input signal
Rising to the position of high 5% than alarm setting value, now alarm signal triggers.Record rises to 10% width from signal
Spend the moment (t0 moment) to the time difference triggered between corresponding alarm relay action moment (t1 moment)
(t1-t0) response time in this loop, it is.
How to realize input voltage signal transition
In the present invention, we complete by being arranged on a relay R 3 within T1 assay device,
This relay is provided with two auxiliary contacts, and an auxiliary contact is for realizing the transition of voltage signal, another auxiliary contact
Introduce the SOE time for tracer signal step moment point.When relay R 3 occurs action to realize signal
While step, owing to its contact introducing SOE is triggered simultaneously, therefore, this contact of SOE record is moved
Make the time i.e. time of representation signal step moment point.
How Quick Acquisition response time
Present invention uses the software disaster order recording software that Invensys I/A system is newly developed
(Sequence of Events) realizes response time writing function.This software can record every number
The time in word amount input signal generation transition moment.Its work does not relies on the CPU(CPU of I/A system
Long processing period), but transit times is directly recorded in inside On-off signal fastener FBM207, FBM
The AIM data server that the time data of fastener collection can be simultaneously transmit in I/A system stores, convenient
Calling, when being afterwards read out response time data, then by SOE software transfer AIM data afterwards
Corresponding time data in storehouse, write CPU, and calculate both differences (t=t1-t0), can test out
The response time in loop.
To sum up, in the present invention, we realize input voltage signal transition by the actuating of relay, use SOE
The time of two time points that function tracer signal transition and triggering are reported to the police, calculate both differences, with this
Realize response time to measure.In other words, it is will originally to record analog quantity (voltage) change and
Time between individual digital quantity (warning) change, (relay touches to be converted into record two numeral amount change
Point upset and alarm actuating contact overturn) between time, realize response time function with this.
The present invention comprises the following steps successively:
The first step, when test upper limit alarm response time, loop to be measured to protection rack, input
One signal less than alarm card alarm setting value 5%；When the response time that test lower limit is reported to the police, to protection
Measure rack loop to be measured, input a signal higher than alarm card alarm setting value 5%；
Second step, when test upper limit alarm response time, by the first width contact of relay, make letter
Number step is to higher than alarm card alarm setting value 5%；When the response time that test lower limit is reported to the police, pass through relay
First width contact of device, makes signal step to less than alarm card alarm setting value 5%；
The second width contact that 3rd step, introducing trigger with relay the first width contact simultaneously, it is thus achieved that alarm card
The time point t0 of input step signal；
Time t1 when the 4th step, acquisition alarm card alarm actuating contact action；
Utilize the accident order recording software of Invensys I/A system, by time point t0 and t1, directly remember
Record is inside On-off signal fastener FBM207, and by t0 and t1, synchronous transfer is to AIM data base
In；
5th step, send reading data command after, in accident order recording software transfer AIM data base
Corresponding time data, writes CPU, and is calculated the response time t=in protection rack loop to be measured
t1-t0。
Claims (3)
1. a Real time auto measure method for protection Channel Response Time, comprises the following steps successively:
The first step, when test upper limit alarm response time, loop to be measured to protection rack, input one
The individual signal less than alarm card alarm setting value；When the response time that test lower limit is reported to the police, to protection machine
Cabinet loop to be measured, inputs a signal higher than alarm card alarm setting value；
Second step, when the response time of test upper limit alarm, by the first width contact of relay, make described
Signal step is to higher than described alarm card alarm setting value；When the response time that test lower limit is reported to the police, by continuing
First width contact of electrical equipment, makes described signal step to less than described alarm card alarm setting value；
The second width contact that 3rd step, introducing trigger with relay the first width contact simultaneously, it is thus achieved that alarm card is defeated
Enter the time point t0 of step signal；
Time point t1 when the 4th step, acquisition alarm card alarm actuating contact action；
5th step, obtain the response time t=t1-t0 in protection rack loop to be measured；
The signal that described signal is lower than alarm card alarm setting value or high 5% in the first step.
The Real time auto measure side of a kind of protection Channel Response Time the most according to claim 1
Method, it is characterised in that: in second step, described signal after step is than alarm card alarm setting value high or low 5%
Signal.
The Real time auto measure side of a kind of protection Channel Response Time the most according to claim 1
Method, it is characterised in that: utilize the accident order recording software of Invensys I/A system, by described time point
T0 and t1, is directly recorded in inside On-off signal fastener FBM207, and by t0 and t1, synchronous transfer is extremely
In AIM data base；After sending reading data command, right in accident order recording software transfer AIM data base
Answer time data, write CPU, and calculate response time t=t1-t0.
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| CN201210180226.5A CN103456378B (en) | 2012-06-04 | 2012-06-04 | A kind of Real time auto measure method of protection Channel Response Time |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106205755B (en) * | 2016-07-26 | 2018-08-31 | 中广核工程有限公司 | Reactor protection system Channel Response Time Intelligentized test system and method |
| CN110617970B (en) * | 2018-06-19 | 2021-08-17 | 上海汽车集团股份有限公司 | Parking response time testing system and method |
| CN108958225B (en) * | 2018-07-27 | 2021-06-22 | 中核控制系统工程有限公司 | Nuclear power plant safety level DCS platform integration testing device |
| CN110412379A (en) * | 2019-07-31 | 2019-11-05 | 惠州市德赛西威汽车电子股份有限公司 | A kind of test method of instrument function response time |
| CN110932955A (en) * | 2019-12-05 | 2020-03-27 | 福建福清核电有限公司 | Signal generating and collecting device for measuring response time of protection system |
| CN112630567A (en) * | 2020-12-14 | 2021-04-09 | 山东核电有限公司 | Automatic response time testing scheme based on FPGA technology |
| CN114923510A (en) * | 2022-05-10 | 2022-08-19 | 中广核核电运营有限公司 | Threshold value inspection device and threshold value inspection method |
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