CN111566515A - Fault monitoring method of neutron high-power detector - Google Patents
Fault monitoring method of neutron high-power detector Download PDFInfo
- Publication number
- CN111566515A CN111566515A CN201880085228.1A CN201880085228A CN111566515A CN 111566515 A CN111566515 A CN 111566515A CN 201880085228 A CN201880085228 A CN 201880085228A CN 111566515 A CN111566515 A CN 111566515A
- Authority
- CN
- China
- Prior art keywords
- detector
- power
- neutron high
- neutron
- power detector
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/12—Manhole shafts; Other inspection or access chambers; Accessories therefor
- E02D29/14—Covers for manholes or the like; Frames for covers
- E02D29/1445—Tools for positioning or removing cover frames
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D3/00—Portable or mobile lifting or hauling appliances
- B66D3/04—Pulley blocks or like devices in which force is applied to a rope, cable, or chain which passes over one or more pulleys, e.g. to obtain mechanical advantage
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D3/00—Portable or mobile lifting or hauling appliances
- B66D3/18—Power-operated hoists
- B66D3/26—Other details, e.g. housings
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01T—MEASUREMENT OF NUCLEAR OR X-RADIATION
- G01T3/00—Measuring neutron radiation
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01T—MEASUREMENT OF NUCLEAR OR X-RADIATION
- G01T7/00—Details of radiation-measuring instruments
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Molecular Biology (AREA)
- High Energy & Nuclear Physics (AREA)
- General Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Mechanical Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Structural Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Civil Engineering (AREA)
- Paleontology (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Monitoring And Testing Of Nuclear Reactors (AREA)
Abstract
The invention relates to a fault monitoring method of a neutron high-power detector, which comprises the following steps: step (a), detecting whether a neutron high-power detector fails or not; and (b) when the neutron high power detector is detected to be out of order in the step (a), giving a penalty based on the position of the manual switch to the neutron high power detector out of order, so as to correct the power value of the neutron high power detector out of order. Therefore, the cost loss caused by stopping the nuclear power plant due to the fact that the channel is immediately stopped when the neutron high-power detector fails can be reduced.
Description
Technical Field
The invention relates to a fault monitoring method of a neutron high-power detector.
Background
The heavy water reactor nuclear power plant operates with three shut-down (trip) channels, 58 neutron high power (ROP) detectors are formed in the core in total, 34 of which are formed in the vertical direction and 24 of which are formed in the horizontal direction, a channel shut-down signal is issued when a fault occurs in the neutron high power (ROP) detector, and the power plant is stopped in the case where two of the three channels issue a shut-down signal.
When a neutron high-power detector fails, the corresponding detector with the failure can run for about a week, but then the nuclear reactor needs to be stopped and the detector with the failure needs to be replaced, if the detector is not replaced and the same detector is arranged at the position of the detector with the failure, the influence that the peripheral detector also fails and the like can be caused, so that the detector needs to be corrected when being arranged, but no correction scheme exists.
Therefore, the following modifications need to be developed: even if the neutron high-power detector fails, the power state of the neutron high-power detector caused by the failure of the neutron high-power detector can be monitored without stopping the nuclear reactor after one week.
Documents of the prior art
Patent document
1. Korean laid-open patent publication No. 10-2016 + 0084048 (method and apparatus for monitoring axial power deviation of each region of heavy water reactor)
2. Korean laid-open patent publication No. 10-2012-0086830 (application method for pressure tube creep penalty for correction of neutron high power protection detector)
Non-patent document
Simulation uncertainty and error verification of overpower protection shutdown system reported by YueCheng No. 1 locomotive Bureau [ neutron beam form error field ] ('99 spring academy of academic publications proceedings Collection Korea atomic energy Association, Lichengde)
Disclosure of Invention
Problems to be solved by the invention
The technical subject to be achieved by the invention is to confirm the power state of the neutron high-power detector when the neutron high-power detector fails, and prevent the heavy water reactor nuclear power plant from stopping along with the single failure of the neutron high-power detector, thereby improving the operation reliability of the heavy water reactor nuclear power plant.
Means for solving the problems
The fault monitoring method of the neutron high-power detector according to one embodiment of the invention comprises the following steps: step (a), detecting whether a neutron high-power detector fails or not; and (b) when a failure of the neutron high-power detector is detected in the step (a), a penalty based on the position of the manual switch is given to the failed neutron high-power detector, so that the power value of the failed neutron high-power detector is corrected.
And (b) judging whether the neutron high-power detector detected to be faulty or not in the step (a) is a differential signal providing detector, and considering the neutron high-power detector detected to be faulty or not and the differential signal compensation detector paired with the neutron high-power detector detected to be faulty or not as faults under the condition that the neutron high-power detector detected to be faulty or not is the differential signal providing detector.
Wherein, in the step (b), the power value of the neutron high power detector with the fault is corrected by the following formula 1,
formula 1:
DC＝(CPPF+DTC+DTILT+DP+DTAP)×FPHT×FC×FF+PTR+PCR+PSDF+PFPHT+PTRIH
in formula 1, dc (detector calibration) is a corrected power value of the neutron high-power detector, cppf (channel power peaking factor) is a maximum value (channel power crest factor) of channel power ripple (ripple), and DTC(temperature correction factor of detector) is the nonlinear correction value of the detector temperature, DTILT(correction factor of flux tilt) is a correction value for neutron beam deviation, DP(modulator position correction factor of detector) is the correction value of the deceleration material for resisting toxic substances, DTAP(correction factor of tap) is a correction value in the case of execution of tap (time average performance), FPHT(PHTS parameter correction factor) is a cooling material system variable correction factor, FC(correction factor of abnormal reactivity) A non-standard reactivity control means is provided with a state correction factor, FF(correction factor of differential fuel type) is a correction factor for the fuel morphology, PTR(correlation factor of reactivity rodwal) is a correction value in the case of a change in the nuclear reactor power and reactivity control means, PCR(correction factor of cruise rate) is the pressure pipe creep penalty, PSDF(correction factor of single detector failure) is the penalty for a faulty ROP detector, PFPHT(difference correction efficiency of PHT condition) as a penalty for cooling material difference compensation, PTRIH(difference correction factor of temperature of reaction header condition) compensates for the penalty for inlet header temperature difference.
In the step (b), penalties for the first manual switching position and the second manual switching position are respectively given to 58 neutron high-power detectors formed in the heavy water reactor nuclear power plant, the maximum penalty for the neutron high-power detectors is-10.08% in the first manual switching position, and the maximum penalty for the neutron high-power detectors is-16.1% in the second manual switching position.
Wherein the value of subtracting the pressure tube creep penalty from the corrected power value of the neutron high power detector in step (b) is further made to be more than 107%.
ADVANTAGEOUS EFFECTS OF INVENTION
According to these features, by applying the method for monitoring a failure of a neutron high power detector according to an embodiment of the present invention, the power state of the neutron high power detector can be confirmed when a single failure occurs in the neutron high power detector, and thus, the heavy water reactor nuclear power plant can be prevented from being stopped due to the single failure in the neutron high power detector, thereby having an effect of increasing the operation efficiency of the heavy water reactor nuclear power plant.
Drawings
Fig. 1 is a schematic view showing a neutron high power detector distributed in a core of a heavy water reactor nuclear power plant to which a fault monitoring method of the neutron high power detector according to an embodiment of the present invention is applied.
Fig. 2 is a schematic diagram illustrating a flow of a fault monitoring method of a neutron high power detector according to an embodiment of the present invention.
Fig. 3 is a block diagram showing a brief structure of a storage medium storing a failure monitoring method of a neutron high power detector according to an embodiment of the present invention.
Detailed Description
Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art to which the present invention pertains can easily carry out the embodiments. The present invention may, however, be embodied in many different forms and should not be construed as being limited to the embodiments set forth herein. In the drawings, portions that are not related to the description are omitted for clarity of the present invention, and the same reference numerals are given to similar portions throughout the specification.
Fig. 1 is a schematic view illustrating a neutron high power detector distributed in a core of a heavy water reactor nuclear power plant to which a fault monitoring method of the neutron high power detector according to an embodiment of the present invention is applied, and fig. 2 is a schematic view illustrating a flow of the fault monitoring method of the neutron high power detector according to an embodiment of the present invention.
As shown in fig. 1, in the heavy water reactor nuclear power plant to which the present embodiment is applied, 58 high neutron power detectors are distributed in the core, 34 of them are distributed in the vertical direction, and 24 are distributed in the horizontal direction, and here, the heavy water reactor nuclear power plant is configured to have a monitoring device capable of confirming the power state value of each of the 58 high neutron power detectors.
Here, a safety shutdown system (SDS, hereinafter referred to as SDS or safety system) provided in the core is configured as follows: the shutdown signal is detected from a first safety system (SDS #1) or a second safety system (SDS #2) of the heavy water reactor nuclear power plant, and the monitoring device is capable of confirming the shutdown signal detected by the first or second safety system.
A method of detecting a failure of a neutron high power detector which is installed in the heavy water reactor nuclear power plant described with reference to fig. 1 and which is capable of monitoring the power state by a monitoring device will be described below. As shown in fig. 2, in the method for monitoring a failure of a neutron high power detector according to an embodiment of the present invention, it is first determined whether a single failure of the neutron high power detector occurs (Q100).
Here, in the step of determining whether or not a single failure has occurred in the neutron high power detector (Q100), the determination of whether or not a single failure has occurred in the 58 neutron high power detectors provided in the core of the heavy water reactor nuclear power plant is performed by detecting the failure signals generated by the 58 neutron high power detectors.
When it is determined in this step (Q100) that the single failure has occurred in the neutron high power detector, the step of determining whether the detector having the failure is the differential signal providing detector (Q200) is performed in the direction of the arrow of "yes", and when the single failure has not occurred in the neutron high power detector, the step of determining whether the single failure has occurred in the neutron high power detector (Q100) is continuously performed in the direction of the arrow of "no".
In the step of determining whether the malfunctioning detector is the differential signal providing detector (Q200), it is determined whether the malfunctioning neutron high power detector is the differential signal providing detector with reference to the following table 1.
[ Table 1]
Here, in the case where the neutron high power detector having a failure is any one of 3G, 4G, 5H, 8H, 3J, and 7J classified as the upper differential signal providing detector in the left column of table 1, the step of regarding the detector having a failure and the compensation detector thereof as a failure (S200) is performed by moving in the direction of the arrow of yes, thereby performing the step of regarding the upper differential signal providing detector and the lower differential compensation detector as a failure (S200).
In one embodiment, when it is judged that the neutron high power detector called 3G positioned in D rows along the horizontal direction of 9 to 11 columns in fig. 1 is failed in the step of judging single failure of the neutron high power detector (Q100), it is judged whether the neutron high power detector called 3G is classified as the upper differential signal providing detector in the left column of the above table 1 in the step of judging whether the failed detector is the differential signal providing detector (Q200).
Thus, in the step of regarding the detector having the failure and the compensation detector thereof as the failure (S200), the neutron high-power detector 3G, which is the detector having the failure, and the differential signal compensation detector, which is the detector 7G of the compensation detector classified as the neutron high-power detector 3G, are processed for each failure.
Through the above steps, for the upper differential signal supply detector and the lower differential signal compensation detector paired by channel as in table 1, when the upper differential signal supply detector fails, the paired lower differential compensation detector is also affected, and thus both of the pair of detectors are handled as a failure.
On the other hand, if it is determined in the above-described determination step (Q200) that the faulty neutron high power detector is not the differential signal supply detector, the step of adding a penalty (penalty) set according to the manual switch position to the faulty neutron high power detector to correct the power value of the faulty neutron high power detector is executed, moving in the direction of the no arrow (S100).
In the step of correcting the power value of the neutron high power detector having a failure by applying a penalty according to the manual switch position (S100), the neutron high power detector determined as having a failure in the determination step (Q100) and determined as not being the differential signal supply detector in the determination step (Q200) is applied with a penalty according to the following formula 2, and the power value of the neutron high power detector is corrected by using the following formula 1.
[ Table 2]
Note: differential compensation Detector (Compensated Detector)
Example (c): compensating for the Detector 7G and the Detector 3G (Detector 7G compensated with 3G), SDS # 2 is used to monitor the power rise in the lower regionUpper differential signal supply detectors (complementary det.:3G, 4G, b, 5H、8H、3J、7J)Andsignal input of lower differential compensation detector (CompensatedDet.:7G, 8G, 2H, 7H, 2J, 8J) Line ofIn comparison, when the differential compensated detector signal is larger, the virtual differential compensated detector signal +0.45 × (differential compensated detector signal-differential signal providing detector signal) is processed, and thus the differential signal providing detector fails, both detectors paired by channel are regarded as a failure.
Table 2 shows penalty Points (PSDF) assigned to each of the 58 probes, and here, different penalty points may be assigned to the sub high power probe depending on whether the probe is in the first manual switch position (HSP: hand switch position) or in the second manual switch position, with the maximum penalty point assigned to the sub high power probe being-10.08% in the first manual switch position and-16.1% in the second manual switch position.
DC＝(CPPF+DTC+DTILT+DP+DTAP)×FPHT×FC×FF+PTR+PCR+PSDF+PFPHT+
PTRIH
In the above formula 1, dc (detector calibration) is a corrected power value of the neutron high power detector, cppf (channel power peaking factor) is a maximum value (channel power crest factor) of channel power ripple (ripple), and DTC(temperature correction factor of detector) is the nonlinear correction value of the detector temperature, DTILT(correction factor of flux tilt) is a correction value for neutron beam deviation (flux), DP(modulator position correction factor of detector) is the correction value of the deceleration material for resisting toxic substances, DTAP(correction factor of tap) is a correction value in the case of execution of tap (time average performance), FPHT(PHTS parameter correction factor) is a cooling material system variable correction factor, FC(correction factor of abnormal reactivity) A non-standard reactivity control means is provided with a state correction factor, FF(correction factor of differential fuel type) is a correction factor for the fuel morphology, PTR(correlation factor of reactivity rod with drift wall) is a correction value in the case of a change in the nuclear reactor power and reactivity control means, PCR(correction factor of cruise rate) is the penalty for pressure pipe creep (cruise), PSDF(correction factor of single detector failure) is the penalty of one failure of the faulty ROP detector, PFPHT(difference correction efficiency of PHTcondition) compensating penalty, P, for cooling material condition differenceTRIH(difference correction factor of performance of reactor inlet header condition) compensates for the penalty for inlet header temperature difference.
In the step of applying a penalty to the neutron high power detector to correct the power value of the failed neutron high power detector (S100), when the power value of the failed neutron high power detector is corrected by the above equation 1, a corrected power value (DC) is calculated so that a value obtained by subtracting the pressure tube creep Penalty (PCR) from the corrected power value becomes 107% or more.
Here, a configuration for executing the failure monitoring method of the neutron high power detector of fig. 2 will be described with reference to fig. 3, in which the detector power value receiving unit 110 receives the power value of the neutron high power detector and the failure signal of the neutron high power detector, and the detector power value correcting unit 120 corrects the power value of the neutron high power detector receiving the failure signal in the detector power value receiving unit 110, based on equation 1 and table 2.
As described above, in order to perform the flow of fig. 2, the storage medium 100 storing the fault monitoring method of the neutron high power detector includes: the detector power value receiving unit 110, the detector power value correcting unit 120, the detector power value comparing unit 130, and the detector power value setting unit 140 can correct the power value of the neutron high power detector when the neutron high power detector fails, and therefore, the following effects are provided: the method can reduce the cost loss caused by the fact that a channel is immediately shut down and a nuclear power station must be stopped when the conventional neutron high-power detector fails.
Further, the present invention may further include a detector power value display unit 200, the detector power value display unit 200 serving as a display device for outputting power values of 58 neutron high-power detectors received by the detector power value receiving unit 110, and a detector power value storage unit 300, the detector power value storage unit 300 serving as a storage device for receiving and storing the power value of the neutron high-power detector received by the detector power value receiving unit 110 and the correction value calculated by the detector power value correcting unit 120.
The embodiments of the present invention have been described specifically, but the scope of the present invention is not limited thereto, and various modifications of the modifications by those skilled in the art using the basic concept of the present invention defined in the appended claims are also within the scope of the present invention.
Description of the reference numerals
100: storage medium storing fault monitoring method of neutron high-power detector
110: detector power value receiving part
120: detector power value correction part
130: detector power value comparison part
200: detector power value display part
300: detector power value storage part
Claims (5)
1. A fault monitoring method of a neutron high-power detector is characterized by comprising the following steps:
step (a), detecting whether a neutron high-power detector fails or not; and
and (b) when the neutron high power detector is detected to be out of order in the step (a), giving a penalty based on the position of the manual switch to the neutron high power detector with the failure, so as to correct the power value of the neutron high power detector with the failure.
2. The method for fault monitoring of a neutron high power detector of claim 1, further comprising:
and (a-1) judging whether the neutron high-power detector detected to be faulty or not in the step (a) is a differential signal providing detector, and under the condition that the neutron high-power detector detected to be faulty or not is the differential signal providing detector, regarding the neutron high-power detector detected to be faulty or not and the differential signal compensation detector paired with the neutron high-power detector detected to be faulty or not as faults.
3. The method for fault monitoring of a neutron high power detector of claim 1,
in the step (b), the power value of the neutron high power detector with the fault is corrected by the following formula 1,
formula 1:
DC＝(CPPF+DTC+DTILT+DP+DTAP)×FPHT×FC×FF+PTR+PCR+PSDF+PFPHT+PTRIH
in formula 1, dc (detector calibration) is a corrected power value of the neutron high-power detector, cppf (channel power peaking factor) is a maximum value (channel power crest factor) of channel power ripple (ripple), and DTC(temperature correction factor of detector) is the nonlinear correction value of the detector temperature, DTILT(correction factor of flux tilt) is a correction value for neutron beam deviation, DP(modifier corrosion factor of detector) is the correction value of the deceleration material for resisting the toxic substance, DTAP(correlation factor of tap) is a correction value in the case of TAP (time average performance) execution, FPHT(PHTSParameter correction factor) is a cooling material system variable correction factor, FC(correction factor of abnormal reactivity) A non-Standard reactivity control means is provided with a state correction factor, FF(correction factor of differential fuel type) is a correction factor for the fuel morphology, PTR(correlation factor of reactivity rodwal) is a correction value in the case of a change in the nuclear reactor power and reactivity control means, PCR(correction factor of cruise rate) is the pressure pipe creep penalty, PSDF(correction factor of single detector failure) is the penalty for a faulty ROP detector, PFPHT(difference correction efficiency of PHT condition) as a penalty for cooling material difference compensation, PTRIH(difference correction factor of temperature of reactor inlet header) compensates the penalty for inlet header temperature difference.
4. The method for fault monitoring of a neutron high power detector of claim 1,
in the step (b), the penalty points for the first manual switch position and the second manual switch position are respectively given to 58 neutron high-power detectors installed in the heavy water reactor nuclear power plant, the maximum penalty point for the neutron high-power detectors is-10.08% in the first manual switch position, and the maximum penalty point for the neutron high-power detectors is-16.1% in the second manual switch position.
5. The method for fault monitoring of a neutron high power detector of claim 3,
such that a value of said pressure tube creep penalty subtracted from said corrected power value of said neutron high power detector of step (b) is greater than 107%.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020180001854A KR102034830B1 (en) | 2018-01-05 | 2018-01-05 | Method of monitoring for regional overpower protection detector |
| KR10-2018-0001854 | 2018-01-05 | ||
| PCT/KR2018/011880 WO2019135469A1 (en) | 2018-01-05 | 2018-10-10 | Method for monitoring failure in high neutron power detector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111566515A true CN111566515A (en) | 2020-08-21 |
| CN111566515B CN111566515B (en) | 2023-10-13 |
Family
ID=67144440
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201880085228.1A Active CN111566515B (en) | 2018-01-05 | 2018-10-10 | Fault monitoring method for neutron high-power detector |
Country Status (3)
| Country | Link |
|---|---|
| KR (1) | KR102034830B1 (en) |
| CN (1) | CN111566515B (en) |
| WO (1) | WO2019135469A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117075183A (en) * | 2023-08-24 | 2023-11-17 | 中广核工程有限公司 | Neutron detector fault on-line monitoring method, system, storage medium and terminal |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4197463A (en) * | 1978-05-25 | 1980-04-08 | Westinghouse Electric Corp. | Compensated self-powered neutron detector |
| KR101191361B1 (en) * | 2011-01-27 | 2012-10-15 | 한국수력원자력 주식회사 | Creep penalty application method for neutron overpower detector calibration |
| KR20150080811A (en) * | 2014-01-02 | 2015-07-10 | 한국수력원자력 주식회사 | BF3 neutron detection system with self-diagnosis function, and its method |
| CN104793234A (en) * | 2015-03-30 | 2015-07-22 | 中广核核电运营有限公司 | System and device for monitoring conditions of neutron detectors |
| CN104898155A (en) * | 2015-05-26 | 2015-09-09 | 中国科学院合肥物质科学研究院 | Method for measuring undercritical degree of undercritical system based on average neutron energy |
| CN106024078A (en) * | 2016-06-24 | 2016-10-12 | 西安交通大学 | Failure diagnosis method for neutron detectors of reactors |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5091139A (en) * | 1989-06-26 | 1992-02-25 | General Electric Company | Automated thermal limit monitor |
| JP4594819B2 (en) * | 2005-07-29 | 2010-12-08 | 株式会社東芝 | Control rod pull-out monitoring device |
| JP5574943B2 (en) * | 2010-12-21 | 2014-08-20 | 株式会社東芝 | Nuclear thermal hydraulic stability monitoring apparatus, method and program for nuclear reactor |
| KR101642083B1 (en) | 2015-01-05 | 2016-07-22 | 한국수력원자력 주식회사 | Monitoring method for axial zone flux tilt of heavy water reactor and apparatus using the monitoring method |
-
2018
- 2018-01-05 KR KR1020180001854A patent/KR102034830B1/en active IP Right Grant
- 2018-10-10 WO PCT/KR2018/011880 patent/WO2019135469A1/en active Application Filing
- 2018-10-10 CN CN201880085228.1A patent/CN111566515B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4197463A (en) * | 1978-05-25 | 1980-04-08 | Westinghouse Electric Corp. | Compensated self-powered neutron detector |
| KR101191361B1 (en) * | 2011-01-27 | 2012-10-15 | 한국수력원자력 주식회사 | Creep penalty application method for neutron overpower detector calibration |
| KR20150080811A (en) * | 2014-01-02 | 2015-07-10 | 한국수력원자력 주식회사 | BF3 neutron detection system with self-diagnosis function, and its method |
| CN104793234A (en) * | 2015-03-30 | 2015-07-22 | 中广核核电运营有限公司 | System and device for monitoring conditions of neutron detectors |
| CN104898155A (en) * | 2015-05-26 | 2015-09-09 | 中国科学院合肥物质科学研究院 | Method for measuring undercritical degree of undercritical system based on average neutron energy |
| CN106024078A (en) * | 2016-06-24 | 2016-10-12 | 西安交通大学 | Failure diagnosis method for neutron detectors of reactors |
Non-Patent Citations (1)
| Title |
|---|
| 李茁: "《压水堆堆芯功率分布在线监测计算中的 探测器失效诊断与处理方法》" * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117075183A (en) * | 2023-08-24 | 2023-11-17 | 中广核工程有限公司 | Neutron detector fault on-line monitoring method, system, storage medium and terminal |
| CN117075183B (en) * | 2023-08-24 | 2024-06-28 | 中广核工程有限公司 | Neutron detector fault on-line monitoring method, system, storage medium and terminal |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20190083881A (en) | 2019-07-15 |
| CN111566515B (en) | 2023-10-13 |
| WO2019135469A1 (en) | 2019-07-11 |
| KR102034830B1 (en) | 2019-10-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10541059B2 (en) | Digital protection system for nuclear power plant | |
| US6938584B2 (en) | Feedwater control system considering pressure drop of feedwater control valve in nuclear power plant and control method therefor | |
| CN111566515A (en) | Fault monitoring method of neutron high-power detector | |
| US8098467B2 (en) | Method for avoidance of inadvertent protective tripping as a result of measurement errors within a protection system for an HVDC transmission installation | |
| KR101195935B1 (en) | Apparatus of Electrical trip solenoid valve isolation block | |
| JP5193722B2 (en) | Fuel cell power generation system and failure cause estimation method thereof | |
| JP5366715B2 (en) | Grid stabilization system | |
| JP2688677B2 (en) | Series operation method for DC power generation equipment | |
| Liu et al. | Improvement and Research about the SG Level Control System of a GEN-III Nuclear Power Plant | |
| US7634043B2 (en) | Protection systems for and methods of operating nuclear boiling water reactors | |
| KR101576046B1 (en) | Method for operating special protection schemes | |
| CN114542222B (en) | Control system and method for nuclear energy steam extraction and heat supply | |
| KR102584787B1 (en) | Monitoring device for power system protection relay | |
| Qian et al. | STUDY ON CLASSIFICATION METHOD OF EQUIPMENT BASED ON AVAILABILITY OF NUCLEAR POWER PLANT | |
| JP4360900B2 (en) | Pressure control equipment in nuclear power plants. | |
| JP2010261660A (en) | Combustion control method and control system for boiler | |
| JP2009235949A (en) | Steam turbine control device and control method | |
| JPH04228839A (en) | Servo valve control device and its control method | |
| KR20180079648A (en) | Determining Method of operating margin of reactor | |
| JP2019186987A (en) | Power compensation device, and power compensation method | |
| JPH0571312A (en) | Load run back control method and device | |
| JP4832049B2 (en) | Control device and control method for condensate demineralizer | |
| WO2023072398A1 (en) | A high voltage direct current, hvdc, converter and a method for handling a fault in such converter | |
| CN116365456A (en) | Cross-interval protection data anomaly identification and intelligent processing method | |
| CN116110631A (en) | Accident handling method and system for small pressurized water reactor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |