CN111768884A - Nuclear power plant unit running state monitoring system and method - Google Patents
Nuclear power plant unit running state monitoring system and method Download PDFInfo
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- CN111768884A CN111768884A CN202010512130.9A CN202010512130A CN111768884A CN 111768884 A CN111768884 A CN 111768884A CN 202010512130 A CN202010512130 A CN 202010512130A CN 111768884 A CN111768884 A CN 111768884A
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- G21D3/00—Control of nuclear power plant
- G21D3/04—Safety arrangements
- G21D3/06—Safety arrangements responsive to faults within the plant
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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
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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Abstract
The invention relates to the technical field of nuclear power plant state monitoring, and particularly discloses a nuclear power plant unit operation state monitoring system and method. The system comprises a data acquisition module, a data link monitoring module and a diagnosis module, wherein the data acquisition module is connected with the data link monitoring module, acquires the operation related data of the nuclear power plant through the data acquisition module and transmits the operation related data to the diagnosis module connected with the data link monitoring module for data judgment so as to determine the operation state diagnosis of the nuclear power plant unit; the data link monitoring module can judge the effectiveness of the data collected and extracted by the data collection module. The nuclear power plant unit operation state monitoring system and method can effectively monitor the operation state of the nuclear power plant, timely feed back the diagnosis result to related systems and personnel, and effectively improve the response speed of events.
Description
Technical Field
The invention belongs to the technical field of nuclear power plant state monitoring, and particularly relates to a nuclear power plant unit running state monitoring system and method.
Background
Currently, one hand of information on the operating state of the nuclear power plant units comes from the operating master. When the operation state of the unit changes, the information is generally reported layer by the master control operator, and the efficiency of information transmission is limited. The technology uses a third party intervention mechanism and is assisted with instant short message pushing, changes of the unit state are pushed to power plants and even related personnel of a group comprehensively at the first time, and the response speed of events is greatly improved.
Disclosure of Invention
The invention aims to provide a nuclear power plant unit operation state monitoring system and a nuclear power plant unit operation state monitoring method, and solves the problems that the nuclear power plant unit operation state monitoring response speed is low, and a diagnosis result cannot be reported in real time.
The technical scheme of the invention is as follows: a nuclear power plant unit operation state monitoring system comprises a data acquisition module, a data link monitoring module and a diagnosis module, wherein the data acquisition module is connected with the data link monitoring module, acquires nuclear power plant operation related data through the data acquisition module, and transmits the nuclear power plant operation related data to the diagnosis module connected with the data link monitoring module for data judgment so as to determine the nuclear power plant unit operation state diagnosis; the data link monitoring module can judge the effectiveness of the data collected and extracted by the data collection module.
The data acquisition module is used for acquiring and transmitting DCS equipment data of the monitored nuclear power plant to the transfer server through the time sequence database, and the transfer server transmits the data to the diagnosis center server through the message queue.
The data link monitoring module is also connected with an early warning feedback module, and when the data link monitoring module monitors data abnormity, the early warning feedback module is used for pushing data link abnormity information through related systems and related personnel.
The early warning feedback module is further connected with the diagnosis module, and when the diagnosis module obtains the nuclear power plant unit operation state diagnosis data, the early warning feedback module feeds back the unit operation state diagnosis result to related systems and related personnel.
A nuclear power plant operating condition monitoring method includes,
s1, collecting data of equipment related to operation of the nuclear power plant unit, and performing data validity diagnosis;
s2, diagnosing the operation state of the unit by using the data of the equipment related to the operation of the unit of the nuclear power plant;
s2.1, diagnosing the shutdown state of the unit;
s2.2, diagnosing the grid connection of the unit;
and S3, carrying out feedback pushing on the abnormal state diagnosis of the unit.
The diagnosing the unit shutdown state comprises the following steps:
when the unit is in the running state, diagnosing whether electric power data are lower than a set power threshold A, and if the electric power data are higher than the set power threshold A, considering that the running state of the unit is normal; if the data are lower than the power threshold A, counting is started, and when N1 continuous times of data are all lower than the power threshold A, the running state of the unit is marked to be an abnormal state C1;
when the unit is in the running state, diagnosing whether the rotating speed data of the steam turbine is lower than a rotating speed threshold B, and if the rotating speed data of the steam turbine is higher than the rotating speed threshold B, considering that the running state of the unit is normal; if the number of the continuous N2 times of data is lower than the rotating speed threshold value B, starting counting, and marking the running state of the unit to be an abnormal state C2 when the number of the continuous N2 times of data is lower than the rotating speed threshold value B;
when the unit is in the operating state, diagnosing C8 signal data, and if RPA678KS is equal to 1 or RPB678KS is equal to 1, marking the unit operating state as an abnormal state C3;
and if the unit operation state is simultaneously marked as abnormal states C1, C2 and C3, judging that the unit is converted into a shutdown state from operation.
The diagnosis of the unit grid connection comprises the following steps:
when the unit is in a shutdown state, diagnosing whether electric power data is higher than a set power threshold A, and if the electric power data is lower than the set power threshold A, considering that the shutdown state of the unit is normal; if the number of the times of the continuous N3 times of data is higher than the power threshold value A, starting counting, and marking the shutdown state of the unit as an abnormal state S1 when the number of the times of the continuous N3 times of data is higher than the power threshold value A;
when the unit is in a shutdown state, diagnosing whether the rotating speed data of the steam turbine is higher than a rotating speed threshold value B, and if the rotating speed data of the steam turbine is lower than the rotating speed threshold value B, determining that the shutdown state of the unit is normal; if the number of times of continuous N4 times of data is higher than the rotating speed threshold value B, starting counting, and marking the shutdown state of the unit as an abnormal state S2;
when the unit is in the shutdown state, marking the shutdown state of the unit as an abnormal state S3 when GSY001JA is equal to 0 aiming at the state signal data of the generator outlet circuit breaker;
and if the unit shutdown state is marked as the abnormal state S1, S2 and S3, judging that the unit is converted from the shutdown state to the operation state.
The method for collecting the nuclear power plant unit operation related equipment data and carrying out data validity diagnosis comprises the following steps:
collecting relevant data of DCS equipment of a nuclear power plant;
acquiring and extracting nuclear power plant DCS equipment data through a time sequence database, transmitting the nuclear power plant DCS equipment data to a transfer server, and transmitting the nuclear power plant DCS equipment data to a diagnosis center server through a message queue by the transfer server;
diagnosing the data link and the data validity;
monitoring heartbeat packets of a nuclear power plant transit server and a diagnosis center server, and if the heartbeat packets are abnormal, sending alarm information;
and diagnosing the timestamp of the collected and extracted data, if the data timestamps are the same for a period of time, determining that the data is abnormal, and sending alarm information.
The step of carrying out feedback pushing on the abnormal state diagnosis of the unit comprises the following steps:
the diagnosis result is pushed to corresponding power plant operation related personnel and the system operation and maintenance personnel through short messages, and manual intervention is carried out;
and confirming the diagnosis result of the operation state of the nuclear power plant, and pushing the diagnosis result to all related personnel.
The invention has the following remarkable effects: the nuclear power plant unit operation state monitoring system and method can effectively monitor the operation state of the nuclear power plant, timely feed back the diagnosis result to related systems and personnel, and effectively improve the response speed of events.
Drawings
Fig. 1 is a schematic diagram of a nuclear power plant unit operation state monitoring system according to the present invention.
Detailed Description
The invention is described in further detail below with reference to the figures and the embodiments.
A nuclear power plant unit running state monitoring system comprises a data acquisition module, a data link monitoring module, a diagnosis module and an early warning feedback module, wherein the data acquisition module is connected with the data link monitoring module, DCS equipment data of a monitored nuclear power plant are acquired, extracted and transmitted to a transfer server through a time sequence database through the data acquisition module, the transfer server transmits the data to a diagnosis center server through a message queue, and the acquisition and extraction frequency is 1 time/second; the data link monitoring module judges the validity of the data acquired by the data acquisition module, and performs data link validity warning processing through an early warning feedback module connected with the data link monitoring module when the data validity deviates from a technical index according to the prior technical specification, for example, the early warning feedback module can push data link sequential short messages to operation and maintenance personnel; the diagnosis module is connected with the data link monitoring module, when the data monitored by the data link monitoring module is normal, the unit state judgment is carried out according to the nuclear power plant equipment information acquired by the data acquisition module, when the index is abnormal, an automatic diagnosis result is provided according to the unit state condition indicated by the existing index, meanwhile, an option of manual intervention is given, and the automatic diagnosis result or the manually modified unit state is pushed to a target group by using the early warning feedback module connected with the diagnosis module.
A nuclear power plant unit operation state monitoring method comprises the following steps:
s1, collecting data of equipment related to operation of the nuclear power plant unit, and performing data validity diagnosis;
s1.1, collecting relevant data of DCS equipment of a nuclear power plant;
acquiring and extracting nuclear power plant DCS equipment data through a time sequence database, transmitting the nuclear power plant DCS equipment data to a transfer server, and transmitting the nuclear power plant DCS equipment data to a diagnosis center server through a message queue by the transfer server;
s1.2, diagnosing the data link and the data validity;
monitoring heartbeat packets of a nuclear power plant transit server and a diagnosis center server, and if the heartbeat packets are abnormal, sending alarm information;
the time stamp of the collected and extracted data is diagnosed, if the time stamps of the data are the same for a period of time, the data is abnormal, and alarm information is sent; for example, the abnormality determination may be performed on data of the same time stamp for 60 consecutive seconds;
s2, diagnosing the operation state of the unit by using the data of the equipment related to the operation of the unit of the nuclear power plant;
s2.1, diagnosing the shutdown state of the unit;
s2.1.1, when the unit is in the running state, diagnosing whether the electric power data is lower than a set power threshold A, if so, considering the running state of the unit to be normal; if the data are lower than the power threshold A, counting is started, and when N1 continuous times of data are all lower than the power threshold A, the running state of the unit is marked to be an abnormal state C1; for example, when the data count is lower than the power threshold value of 10MW for 600 consecutive times, the unit operation state is marked as an abnormal state C1;
s2.1.2, when the unit is in the running state, diagnosing whether the rotating speed data of the steam turbine is lower than a rotating speed threshold B, if so, considering that the running state of the unit is normal; if the number of the continuous N2 times of data is lower than the rotating speed threshold value B, starting counting, and marking the running state of the unit to be an abnormal state C2 when the number of the continuous N2 times of data is lower than the rotating speed threshold value B; for example, when the data count is lower than 2985r/m for 600 times continuously, the running state of the unit is marked to be an abnormal state C2;
s2.1.3, when the unit is in the running state, diagnosing C8 signal data, and if RPA678KS is equal to 1 or RPB678KS is equal to 1, marking the running state of the unit as an abnormal state C3;
s2.1.4, if the running state of the unit is marked as abnormal states C1, C2 and C3 at the same time, judging that the unit is changed from running to a shutdown state;
s2.2, diagnosing the grid connection of the unit;
s2.2.1, when the unit is in a shutdown state, diagnosing whether the electric power data is higher than a set power threshold A, if so, considering that the shutdown state of the unit is normal; if the number of the times of the continuous N3 times of data is higher than the power threshold value A, starting counting, and marking the shutdown state of the unit as an abnormal state S1 when the number of the times of the continuous N3 times of data is higher than the power threshold value A; for example, when the data count is higher than the power threshold value 10MW for 600 consecutive times, the unit shutdown state is marked as the abnormal state S1;
s2.2.2, when the unit is in a shutdown state, diagnosing whether the rotational speed data of the steam turbine is higher than a rotational speed threshold B, and if the rotational speed data of the steam turbine is lower than the rotational speed threshold B, determining that the shutdown state of the unit is normal; if the number of times of continuous N4 times of data is higher than the rotating speed threshold value B, starting counting, and marking the shutdown state of the unit as an abnormal state S2; for example, when the data count is higher than 2985r/m for 600 times continuously, the unit shutdown state is marked as an abnormal state S2;
s2.2.3, when the unit is in the shutdown state, regarding the state signal data of the generator outlet circuit breaker, if GSY001JA is equal to 0, marking the shutdown state of the unit as an abnormal state S3;
s2.2.4, if the unit shutdown state is marked as abnormal states S1, S2 and S3, judging that the unit is converted from shutdown to operation state;
s3, carrying out feedback pushing on the abnormal state diagnosis of the unit;
s3.1, pushing the diagnosis result to corresponding power plant operation related personnel and the system operation and maintenance personnel through short messages, and performing manual intervention;
and S3.2, confirming the diagnosis result of the operation state of the nuclear power plant, and pushing the diagnosis result to all related personnel.
Claims (9)
1. A nuclear power plant unit operation state monitoring system is characterized by comprising a data acquisition module, a data link monitoring module and a diagnosis module, wherein the data acquisition module is connected with the data link monitoring module, acquires nuclear power plant operation related data through the data acquisition module, and transmits the nuclear power plant operation related data to the diagnosis module connected with the data link monitoring module for data judgment so as to determine the nuclear power plant unit operation state diagnosis; the data link monitoring module can judge the effectiveness of the data collected and extracted by the data collection module.
2. The nuclear power plant operating condition monitoring system of claim 1, wherein the data acquisition module acquires and transmits DCS equipment data of the monitored nuclear power plant to a transfer server through a time sequence database, and the transfer server transmits the data to the diagnosis center server through a message queue.
3. The nuclear power plant operating condition monitoring system of claim 1, wherein the data link monitoring module is further connected with an early warning feedback module, and when the data link monitoring module monitors data abnormality, the early warning feedback module is used for pushing data link abnormality information through related systems and related personnel.
4. The nuclear power plant operating condition monitoring system of claim 3, wherein the early warning feedback module is further connected to the diagnosis module, and when the diagnosis module obtains nuclear power plant unit operating condition diagnosis data, the early warning feedback module feeds back the unit operating condition diagnosis result to related systems and related personnel.
5. A nuclear power plant operation state monitoring method is characterized in that: the method comprises the steps of (1) carrying out,
s1, collecting data of equipment related to operation of the nuclear power plant unit, and performing data validity diagnosis;
s2, diagnosing the operation state of the unit by using the data of the equipment related to the operation of the unit of the nuclear power plant;
s2.1, diagnosing the shutdown state of the unit;
s2.2, diagnosing the grid connection of the unit;
and S3, carrying out feedback pushing on the abnormal state diagnosis of the unit.
6. A nuclear power plant operating condition monitoring method according to claim 5, wherein diagnosing a unit shutdown condition includes:
when the unit is in the running state, diagnosing whether electric power data are lower than a set power threshold A, and if the electric power data are higher than the set power threshold A, considering that the running state of the unit is normal; if the data are lower than the power threshold A, counting is started, and when N1 continuous times of data are all lower than the power threshold A, the running state of the unit is marked to be an abnormal state C1;
when the unit is in the running state, diagnosing whether the rotating speed data of the steam turbine is lower than a rotating speed threshold B, and if the rotating speed data of the steam turbine is higher than the rotating speed threshold B, considering that the running state of the unit is normal; if the number of the continuous N2 times of data is lower than the rotating speed threshold value B, starting counting, and marking the running state of the unit to be an abnormal state C2 when the number of the continuous N2 times of data is lower than the rotating speed threshold value B;
when the unit is in the operating state, diagnosing C8 signal data, and if RPA678KS is equal to 1 or RPB678KS is equal to 1, marking the unit operating state as an abnormal state C3;
and if the unit operation state is simultaneously marked as abnormal states C1, C2 and C3, judging that the unit is converted into a shutdown state from operation.
7. The method of claim 5, wherein the diagnosing the grid-connection of the plant includes:
when the unit is in a shutdown state, diagnosing whether electric power data is higher than a set power threshold A, and if the electric power data is lower than the set power threshold A, considering that the shutdown state of the unit is normal; if the number of the times of the continuous N3 times of data is higher than the power threshold value A, starting counting, and marking the shutdown state of the unit as an abnormal state S1 when the number of the times of the continuous N3 times of data is higher than the power threshold value A;
when the unit is in a shutdown state, diagnosing whether the rotating speed data of the steam turbine is higher than a rotating speed threshold value B, and if the rotating speed data of the steam turbine is lower than the rotating speed threshold value B, determining that the shutdown state of the unit is normal; if the number of times of continuous N4 times of data is higher than the rotating speed threshold value B, starting counting, and marking the shutdown state of the unit as an abnormal state S2;
when the unit is in the shutdown state, marking the shutdown state of the unit as an abnormal state S3 when GSY001JA is equal to 0 aiming at the state signal data of the generator outlet circuit breaker;
and if the unit shutdown state is marked as the abnormal state S1, S2 and S3, judging that the unit is converted from the shutdown state to the operation state.
8. The method of claim 5, wherein the step of collecting plant unit operation related equipment data and performing data validity diagnosis includes:
collecting relevant data of DCS equipment of a nuclear power plant;
acquiring and extracting nuclear power plant DCS equipment data through a time sequence database, transmitting the nuclear power plant DCS equipment data to a transfer server, and transmitting the nuclear power plant DCS equipment data to a diagnosis center server through a message queue by the transfer server;
diagnosing the data link and the data validity;
monitoring heartbeat packets of a nuclear power plant transit server and a diagnosis center server, and if the heartbeat packets are abnormal, sending alarm information;
and diagnosing the timestamp of the collected and extracted data, if the data timestamps are the same for a period of time, determining that the data is abnormal, and sending alarm information.
9. The method for monitoring the operating condition of the nuclear power plant according to claim 5, wherein the step of pushing the unit abnormal condition diagnosis back comprises the following steps:
the diagnosis result is pushed to corresponding power plant operation related personnel and the system operation and maintenance personnel through short messages, and manual intervention is carried out;
and confirming the diagnosis result of the operation state of the nuclear power plant, and pushing the diagnosis result to all related personnel.
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