KR20180079649A - Method of monitoring real time channel output - Google Patents

Method of monitoring real time channel output Download PDF

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KR20180079649A
KR20180079649A KR1020170000056A KR20170000056A KR20180079649A KR 20180079649 A KR20180079649 A KR 20180079649A KR 1020170000056 A KR1020170000056 A KR 1020170000056A KR 20170000056 A KR20170000056 A KR 20170000056A KR 20180079649 A KR20180079649 A KR 20180079649A
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channel output
correction factor
output
average value
flx
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KR101900178B1 (en
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김성민
박중우
김광수
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한국수력원자력 주식회사
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    • GPHYSICS
    • G21NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21DNUCLEAR POWER PLANT
    • G21D3/00Control of nuclear power plant
    • G21D3/001Computer implemented control
    • GPHYSICS
    • G21NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21DNUCLEAR POWER PLANT
    • G21D3/00Control of nuclear power plant
    • G21D3/04Safety arrangements
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E30/00Energy generation of nuclear origin

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Abstract

The present invention relates to a real-time channel output monitoring method for producing and changing a correction factor by correcting the correction factor (= Three-month average value of the maximum channel output of a core code / Maximum channel for power plant control) so that the maximum channel output is monitored in a control computer in real time, with a method for changing the three-month average value of a correction factor output calculated by comparing and evaluating, with the core code, an FLX program channel output for the power plant control which is conventionally low, once every three months. Accordingly, an operator can take action to confirm whether an operation constraint condition is exceeded.

Description

실시간 채널 출력 감시방법{Method of monitoring real time channel output}Technical Field [0001] The present invention relates to a real-

본 발명은 종래에 낮게 나오는 발전소 제어용 FLX 프로그램 채널출력에 대해 노심코드와 3개월에 한번 씩 비교 평가하여 산출된 보정인자 출력의 3개월 평균 값를 변경하는 방법으로 보정인자(=노심코드 최대 채널출력의 3개월 평균값 ÷ 발전소 제어용 최대 채널)를 수정하여 제어용전산기에서 실시간으로 최대 채널출력이 감시되도록 변경 제작되어 제작된 바꾸는 실시간 채널 출력 감시방법에 관한 것이다.The present invention is a method for changing the 3-month average value of the correction factor output calculated by comparing the core code and the core code with the conventionally low FLX program channel output for power plant control once every three months, A 3-month average value ÷ a maximum channel for power plant control), and the maximum channel output is monitored in real time in a control computer.

현재 월성 중수로(CANDU-600)의 채널출력 및 다발출력 운전제한조건은 각각 다음의 단일값으로 설정되어 준수되고 있다.Currently, the channel output and bundle output operation restriction conditions of Wolsong Heavy Waterway (CANDU-600) are set to the following single values respectively.

- 채널출력: 7.3 MW(불확실도 적용 운전제한조건 7.07 MW : 380개 동일)- Channel output: 7.3 MW (Operation limit of uncertainty applied 7.07 MW: 380 same)

- 다발출력: 935 kW(불확실도 적용 운전제한조건 898 kW : 380개 동일)- Bundle output: 935 kW (Operation limit of 898 kW, same as 380 uncertainties)

여기서 불확실도는 채널출력 및 다발출력 운전제한조건 만족여부를 확인하기 위한 채널출력 및 다발출력 측정 불확실도이다. 이러한 운전제한조건 만족여부를 확인하기 위하여 노물리 전산코드로 1주일에 2회 채널출력 및 다발출력을 점검하고 있다. 발전소 제어용 FLX 프로그램에서는 실시간으로 최대 채널출력을 감시하고 있다.The uncertainty is the channel output and bundle output measurement uncertainty to confirm whether the channel output and bundle output operation restriction conditions are met. In order to confirm whether or not the operation limit condition is met, the channel output and the bundle output are checked twice a week by the Nojiri computer code. FLX program for power plant control monitors the maximum channel output in real time.

발전소 제어용 FLX 프로그램의 채널출력은 노물리 전산코드 결과보다 항상 낮게 산출된다. 이는 발전소 제어용 FLX 프로그램에서는 현재의 노심출력 분포에 따라 변화된 Flux를 산출하지 못하고 노심평균 출력 분포를 기준으로 산출되기 때문이다. 현재 가장 정확한 노심출력 감시방법은 현재의 출력분포를 사용하는 노 물리 전산코드이지만 실시간으로 감시하지 못하는 문제가 있다.The channel output of the FLX program for power plant control is always lower than that of the northeastern computer code. This is because the FLX program for power plant control can not calculate the flux that is changed according to the current core output distribution and is calculated based on the core average power distribution. Currently, the most accurate core output monitoring method is a non-physical computer code that uses the current output distribution, but has a problem that it can not be monitored in real time.

발전소 제어용 FLX 프로그램 채널출력에서 운전제한조건 초과시 24시간 안에 노심코드로 확인하게 되어 있으나, 발전소 제어용 FLX 프로그램 채널출력이 항상 낮아 무의미한 운전제한조건이다.When FLX program channel output for plant control is checked, core code is checked within 24 hours when operation limit condition is exceeded, but FLX program channel output for plant control is always low, meaningless operation restriction condition.

관련된 한국공개특허공보 10-2014-0023676에는 노내계측기 신호 기반의 반경방향 첨두계수를 이용한 노심 운전 제한치 감시계통의 Pseudo Hot Pin 출력 분포 구성 방법에 관한 기술적 구성이 개시되어 있고, 일본특허공보 특평 제3847988호에는 노심의 안정도를 추정하고 평가하도록 구성된 원자로 출력 감시 장치가 개시되어 있으나, 이와 대비되는 본 발명은 수정하여 제어용전산기에서 실시간으로 최대 채널출력이 감시되도록 변경 제작되어 제작된 바꾸는 실시간 채널 출력 감시방법으로 보다 정확하고 신뢰성 있게 채널 출력을 감시할 수 있는 상승된 작용효과가 있다.Korean Patent Laid-Open Publication No. 10-2014-0023676 discloses a technical structure of a method for constructing a pseudo hot pin output distribution of a core operating limit value monitoring system using radial peak coefficients based on in-furnace meter signals, and Japanese Patent Application Publication No. 3847988 The present invention has been made to solve the above problems, but the present invention has been made in view of the above problems, and it is an object of the present invention to provide a reactor output monitoring apparatus, There is an elevated effect that can more accurately and reliably monitor the channel output.

본 발명이 해결하고자 하는 과제는 본 발명은 중성자고출력계통 트립설정치와 적정 운전여유를 유지하여 노심출력변동에 의한 잦은 중성자고출력계통 트립예방에 의한 발전 운전원 심적 부담감 해소할 수 있도록 하는데 있다.SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems of the present invention by maintaining the neutron high-power system trip set point and appropriate operating margin to prevent frequent neutron high-power system trips caused by core output fluctuations.

본 발명이 해결하고자 하는 또 다른 과제는 적정 운전여유 확보방법론에 의한 중수로원전 전체 운영방법을 통일하고, 중성자고출력계통 운전여유 방법론 개발에 의한 원자로 출력 산출하며, 적정 운전여유 확보 방안에 의한 이용율 감소를 예방할 수 있도록 하는데 있다.Another problem to be solved by the present invention is to unify the overall operation method of the heavy water reactor nuclear power plant by proper method of securing the operating margin, to calculate the reactor output by developing the method of operating the neutron high power system operation allowance, And to prevent it.

본 발명 과제의 해결 수단은 중수로 원자로의 실시간 채널 출력 감시방법에 있어서, 노심코드 최대 채널출력 3개월간 평균값과 발전소 제어용 최대 채널출력 3개월간 평균값을 산출하는 단계; 산출된 노심코드 최대 채널출력의 3개월 평균값을 발전소 제어용 최대 채널출력의 3개월 평균 값으로 나누어 보정인자를 계산하는 단계; 및 계산된 보정인자를 이용하여 제어용 전산기 FLX 프로그램 보정인자 수정하는 단계를 포함하는 중수로 원자로의 실시간 채널 출력 감시방법을 제공하는데 있다.A method of monitoring a real-time channel output of a heavy water reactor, comprising: calculating an average value of a core code output for three months and an average value of a maximum channel output for a plant control for three months; Calculating a correction factor by dividing the 3-month average value of the calculated core-channel maximum channel output by the 3-month average value of the maximum channel output for plant control; And correcting the control computer FLX program correction factor by using the calculated correction factor. The present invention also provides a real-time channel output monitoring method for a heavy water reactor.

본 발명의 또 다른 과제의 해결 수단은 제어용 전산기 FLX 프로그램 보정인자에 의해 제어용 전산기 FLX 프로그램 채널출력 380개 보정하는 단계를 포함하는 중수로 원자로의 실시간 채널 출력 감시방법을 제공하는데 있다.A further object of the present invention is to provide a method for monitoring a real-time channel output of a heavy water reactor including a step of correcting 380 control FLX program channel outputs for control by a control computer FLX program correction factor.

본 발명의 또 다른 과제의 해결 수단은 매일 제어용 전산기 FLX 프로그램 최대채널출력 감시하는 단계를 포함하는 중수로 원자로의 실시간 채널 출력 감시방법을 제공하는데 있다.A further object of the present invention is to provide a method for monitoring a real-time channel output of a heavy water reactor including a step of monitoring a maximum channel output of a computer FLX program for daily control.

본 발명은 보수성이 가미된 채널출력의 실시간 감시방법을 통해 항상 운전원이 운전 제한조건이 초과되는지 확인하도록 조치할 수 있는 상승된 효과가 있다. The present invention has an elevated effect that the operator can always check whether the operation restriction condition is exceeded through the real time monitoring method of the channel output with the water conservativeness.

도 1은 노심코드와 제어용 전산기 최대 채널출력 이력을 나타낸 것이다.Fig. 1 shows the core code and the history of the maximum channel output of the computer for control.

본 발명을 실시 하기 위한 구체적인 내용을 살펴본다. Hereinafter, the present invention will be described in detail.

본 발명은 종래에 낮게 나오는 발전소 제어용 FLX 프로그램 채널출력에 대해 노심코드와 3개월에 한번 씩 비교 평가하여 산출된 보정인자 출력의 3개월 평균 값를 변경하는 방법으로 보정인자(=노심코드 최대 채널출력의 3개월 평균값 ÷ 발전소 제어용 최대 채널)를 수정하여 제어용전산기에서 실시간으로 최대 채널출력이 감시되도록 변경 제작되어 제작된 바꾸는 실시간 채널 출력 감시방법에 관한 것이다. 본 발명에 대한 구체적인 실시 예를 살펴본다. The present invention is a method for changing the 3-month average value of the correction factor output calculated by comparing the core code and the core code with the conventionally low FLX program channel output for power plant control once every three months, A 3-month average value ÷ a maximum channel for power plant control), and the maximum channel output is monitored in real time in a control computer. A specific embodiment of the present invention will be described.

<실시 예><Examples>

본 발명에 따른 구체적인 실시 예를 살펴본다. 상기한 바와 같이 월성 중수로(CANDU-600)의 채널출력 운전제한조건을 실시간으로 감시하려면 노심코드를 발전소 제어용 전산기와 연계 계산하고 감시하여야 하나, 제어용 전산프로그램은 용량이 부족하고 일부 수동으로 입력해주어야 할 변수와 과거이력이 있어 실시간 연계는 불가능하다. A specific embodiment according to the present invention will be described. As mentioned above, in order to monitor the channel output operation restriction condition of Wandoung Heavy Waterway (CANDU-600) in real time, the core code should be calculated and monitored in conjunction with the power plant control computer, but the control computer program has insufficient capacity and some manual input There is a variable and past history, and it is impossible to connect in real time.

본 발명은 낮게 나오는 발전소 제어용 FLX 프로그램 채널출력에 대해 노심코드와 3개월에 한번씩 비교 평가하여 산출된 보정인자를 변경하는 방법으로 제어용 전산기에서 실시간으로 최대 채널출력이 감시되도록 바꾸는 방법이다.The present invention is a method of changing the correction factor calculated by comparing core code with a core code for FLX program channel output for control of power generation which is low, and checking the maximum channel output in real time in a control computer.

본 발명의 구성 및 전반적인 동작원리에 대하여 구체적으로 살펴본다.The configuration of the present invention and the general operation principle will be described in detail.

노심코드 최대 채널출력 3개월간 평균값과 발전소 제어용 최대 채널출력 3개월간 평균값을 산출하는 단계를 포함한다.Calculating an average value of the core code maximum channel output for three months and an average value for three months of the maximum channel output for power plant control.

산출된 노심코드 최대 채널출력의 3개월 평균값을 발전소 제어용 최대 채널출력의 3개월 평균 값으로 나누어 보정인자를 구하는 단계를 포함한다(도 1 참조).And dividing the calculated three-month average value of the core-channel maximum channel output by the three-month average value of the maximum channel output for plant control to obtain a correction factor (see FIG. 1).

이 산출된 보정인자를 이용하여 제어용 전산기 FLX 프로그램 보정인자 수정하는 단계를 포함한다. And correcting the control computer FLX program correction factor by using the calculated correction factor.

제어용 전산기 FLX 프로그램 보정인자에 의해 제어용 전산기 FLX 프로그램 채널출력 380개 보정하는 단계를 포함한다. And a step of correcting the control computer FLX program channel output 380 by the control computer FLX program correction factor.

매일 제어용 전산기 FLX 프로그램 최대채널출력 감시하는 단계를 포함한다. And a step of monitoring the maximum channel output of the daily control computer FLX program.

본 발명은 종래에 낮게 나오는 발전소 제어용 FLX 프로그램 채널출력에 대해 노심코드와 3개월에 한번 씩 비교 평가하여 산출된 보정인자 출력의 3개월 평균 값를 변경하는 방법으로 보정인자(=노심코드 최대 채널출력의 3개월 평균값 ÷ 발전소 제어용 최대 채널)를 수정하여 제어용전산기에서 실시간으로 최대 채널출력이 감시되도록 변경 제작되어 제작된 바꾸는 실시간 채널 출력 감시방법을 제공할 수 있으므로 산업상 이용가능성이 매우 높다.The present invention is a method for changing the 3-month average value of the correction factor output calculated by comparing the core code and the core code with the conventionally low FLX program channel output for power plant control once every three months, 3-month average value ÷ maximum channel for power plant control) is modified so that the maximum channel output is monitored in real time in the control computer.

Claims (3)

중수로 원자로의 실시간 채널 출력 감시방법에 있어서,
노심코드 최대 채널출력 3개월간 평균값과 발전소 제어용 최대 채널출력 3개월간 평균값을 산출하는 단계;
산출된 노심코드 최대 채널출력의 3개월 평균값을 발전소 제어용 최대 채널출력의 3개월 평균 값으로 나누어 보정인자를 계산하는 단계; 및
계산된 보정인자를 이용하여 제어용 전산기 FLX 프로그램 보정인자 수정하는 단계를 포함하는 중수로 원자로의 실시간 채널 출력 감시방법.
In a real-time channel output monitoring method of a heavy water reactor,
Calculating an average value of the core code maximum channel output for three months and an average value for three months of the maximum channel output for plant control;
Calculating a correction factor by dividing the 3-month average value of the calculated core-channel maximum channel output by the 3-month average value of the maximum channel output for plant control; And
And correcting the control computer FLX program correction factor using the calculated correction factor.
제1항에 있어서,
제어용 전산기 FLX 프로그램 보정인자에 의해 제어용 전산기 FLX 프로그램 채널출력 380개 보정하는 단계를 포함하는 중수로 원자로의 실시간 채널 출력 감시방법.
The method according to claim 1,
Method for monitoring real-time channel output of a heavy water reactor including a step of correcting 380 CFX program channel outputs for control by a control computer FLX program correction factor.
제2항에 있어서,
매일 제어용 전산기 FLX 프로그램 최대채널출력 감시하는 단계를 포함하는 중수로 원자로의 실시간 채널 출력 감시방법.
3. The method of claim 2,
A method for monitoring a real-time channel output of a heavy water reactor including a step of monitoring a maximum channel output of a daily control computer FLX program.
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KR19990036677A (en) * 1997-10-07 1999-05-25 샤레똥 피. Reactor control technology
KR101561829B1 (en) * 2014-08-26 2015-10-22 한국수력원자력 주식회사 Data accuracy improved flx program for calculating power of heavy water reactor

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KR20220115336A (en) 2021-02-10 2022-08-17 한국수력원자력 주식회사 System for modeling failure prediction of vanadium detector in CANDU and method therefor

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