CN111812998B - Nuclear power plant double-unit digital instrument control verification system and method thereof - Google Patents
Nuclear power plant double-unit digital instrument control verification system and method thereof Download PDFInfo
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Abstract
The invention discloses a dual-unit digital instrument control verification system and method for a nuclear power plant, wherein the system comprises the following steps: the simulation model layer simulates the running of the nuclear power plant unit based on the operation instruction and generates running data, and comprises a first simulation model server and a second simulation model server for simulating the nuclear power plant; the control logic layer receives the operation instruction sent by the man-machine interface layer and accesses the simulation model layer, responds to the operation instruction to perform corresponding business logic processing, and comprises the steps of calculating and analyzing the working conditions of the first unit and the second unit of the nuclear power plant in real time based on the operation data, measuring the working condition deviation, correcting DCS configuration logic and parameters, generating the operation control instruction of the unit of the nuclear power plant based on the corrected DCS configuration logic and parameters, sending the operation instruction to the control logic layer by the man-machine interface layer, and receiving the processing result returned by the control logic layer. The advantages are that: the maintenance efficiency of the instrument control system is improved, and an operation platform for skill training is provided for DCS operation and maintenance personnel of the nuclear power plant.
Description
Technical Field
The invention belongs to the technical field of nuclear power plant control, and particularly relates to a double-unit digital instrument control verification system and method for a nuclear power plant.
Background
The DCS system has been widely used in nuclear power plants in recent years due to its advantages such as reliability and stability. However, the DCS system has a lot of test dead zones during factory testing and field debugging, and it is impossible to completely cover the defects of the DCS system. Defects of the DCS system and blind spots of operation and maintenance personnel on the knowledge of the DCS system can cause some common operation events to occur in the operation and maintenance process of the DCS, and unplanned shutdown can be caused under severe conditions. In recent years, the reasons for the analysis of unplanned shutdown events of nuclear power plants of nuclear groups are related to the DCS system. Therefore, in order to ensure safe and stable operation of the nuclear power plant, a DCS verification system parallel to an actual unit is urgently needed to be built, and is used for verifying a nuclear power plant DCS transformation upgrading or test scheme, analyzing events occurring in the past, providing guidance for daily operation and maintenance of the DCS system, checking potential safety hazards existing in the DCS system, and further being used for skill training of related personnel of the nuclear power plant, and protecting and navigating for safe and stable operation of the nuclear power plant.
In the construction of the existing nuclear power units, two units are basically constructed together, and 1-layer equipment of DCS systems of the two units are in the same ring network to form intercommunication and interconnection. During a power plant overhaul period, one unit is usually stopped, and the other unit is normally operated. For a shutdown unit, overhaul operations such as starting, stopping and the like can be performed on equipment of an important system during overhaul, if a DCS system has potential defects, a control instruction can be sent to the operation unit by mistake, and shutdown and even shutdown can be caused under serious conditions. Such accidents have also occurred before. Therefore, the double-unit digital instrument control verification system can be built to comprehensively verify the double-unit instrument control system, and the possibility of accidents caused by insufficient scheme demonstration is reduced. The research of information security inspection, defense and optimization can be completed; the reproduction and analysis of the DCS fault working condition are completed; and finishing verification of the DCS software modification or upgrading scheme.
The above information disclosed in the background section is only for enhancement of understanding of the background of the invention and therefore may contain information that does not form the prior art that is already known to a person of ordinary skill in the art.
Disclosure of Invention
The invention aims to provide a dual-unit digital instrument control verification system and method for a nuclear power plant, which can effectively overcome the defects in the prior art.
The technical scheme of the invention is as follows:
a dual-unit digital instrument control verification system of a nuclear power plant comprises a simulation module, a control logic module and a human-computer interface module, wherein,
the simulation module comprises a first simulation model server for simulating a first unit process system of the nuclear power plant and a second simulation model server for simulating a second unit process system of the nuclear power plant, the simulation module is in communication connection with the control logic module through the data communication server, and the simulation module simulates the operation of the first unit and the second unit of the nuclear power plant based on the operation instruction sent by the man-machine interface module and generates operation data;
the control logic module receives the operation instruction sent by the human-computer interface module and accesses the simulation module, responds to the operation instruction to perform corresponding business logic processing, the business logic processing comprises real-time calculation and analysis of the working conditions of the first and second units of the nuclear power plant based on the operation data, measurement of the working condition deviation and correction of DCS configuration logic and parameters, generation of the operation control instruction of the unit of the nuclear power plant based on the corrected DCS configuration logic and parameters,
the control logic module may comprise a logic module configured to,
a DCS one-layer control system, which comprises a first safety level instrument control system and a first non-safety level instrument control system which are used for running a first unit control logic configuration of a nuclear power plant, and a second safety level instrument control system and a second non-safety level instrument control system which are used for running a second unit control logic configuration of the nuclear power plant, wherein the first safety level instrument control system and the second safety level instrument control system respectively comprise a 1E-level virtual controller, a 1E channel controller and a first switching unit used for communication, the first non-safety level instrument control system and the second non-safety level instrument control system respectively comprise an NC-level virtual controller used for controlling the virtual equipment, an NC-level control cabinet used for controlling the virtual equipment and a second switching unit used for communication, the 1E channel controller and the NC-level control cabinet are respectively connected with a data communication server through I/O interface communication,
a first AW interface server and a second AW interface server which are respectively connected with the first exchange unit and the second exchange unit in a communication way,
a first front-end server and a second front-end server which are respectively connected with the first AW interface server and the second AW interface server in a communication way,
the first HST/ALM/MTK/AW/CSA server and the second HST/ALM/MTK/AW/CSA server comprise a history library, an alarm, a clock, an AW engineer station and a CSA station, and the first HST/ALM/MTK/AW/CSA server and the second HST/ALM/MTK/AW/CSA server are respectively in communication connection with the DCS one-layer control system and the first AW interface server and the second AW interface server;
the man-machine interface module sends an operation instruction to the control logic module and receives a processing result returned by the control logic module;
the human-machine interface module comprises a human-machine interface module,
the first human-computer interface and the second human-computer interface realize corresponding human-computer interaction operation, send corresponding operation instructions to the first non-security level instrument control system and the second non-security level instrument control system, receive returned processing results,
the first security level DCS human-computer interface and the second security level DCS human-computer interface realize corresponding human-computer interaction operation, send corresponding operation instructions to the first security level instrument control system and the second security level instrument control system, and receive returned processing results.
The system also comprises a verification control module which sends an operation instruction to the simulation module and receives a processing result returned by the simulation module, wherein the verification control station comprises,
the first verification control station and the second verification control station realize corresponding man-machine interaction operation, an operator executes corresponding operation according to requirements, the control station sends corresponding operation instructions to the process simulation model, and a processing result corresponding to the model dynamic state is received.
The verification control module generates fault information of the nuclear power plant unit and sends the simulation module, the simulation module carries out corresponding business logic processing based on the fault information of the nuclear power plant unit and generates operation data, the verification control module and the logic control module are fed back, the logic control module formulates corresponding control and regulation strategies according to the change of process parameters in the simulation module and generates control instructions, the control instructions are sent to the simulation module, the simulation module carries out corresponding business processing and generates dynamic response operation data, and the first unit and the second unit can operate the functions in parallel.
When the dual-unit digital instrument control verification system of the nuclear power plant fails, the control logic module generates DCS fault information, calculates and analyzes working conditions of the first unit and the second unit of the nuclear power plant based on the DCS fault information, measures working condition deviation and corrects DCS configuration logic and parameters.
The first switching unit comprises gateway equipment and a switch which is respectively connected with the 1E-level virtual controller and the 1E channel controller, and the second switching unit comprises a switch which is respectively connected with the NC-level virtual controller and the NC-level control cabinet.
The process system comprises a simulation model unit for simulating a nuclear island, a conventional island and a BOP part, and a simulation model server comprises a simulator for 1:1 simulation of the process system.
The DCS one-layer control system further comprises a Root switch for data interaction, the first switching unit and the second switching unit are respectively provided with a Room switch, and the second switching unit comprises a field communication protocol for communicating field devices and a virtual communication protocol for communicating virtual devices.
The DCS one-layer control system is in communication connection with the man-machine interface module through a third exchange unit, and further comprises a first DCS two-layer calculation server, a second DCS two-layer calculation server, a historical data server and a real-time data server, wherein the first DCS two-layer calculation server and the second DCS two-layer calculation server are respectively used for calculating equipment states of a first unit and a second unit of the nuclear power plant.
The human-machine interface module further comprises,
a first DGS station and a second DGS station, each communicatively coupled to a non-security level control system, the DGS stations configured to generate a control logic configuration offline,
a first and a second listing center configured to lock predetermined equipment of first and second units of the nuclear power plant, respectively.
A method for verifying the instrument control of a nuclear power plant double-unit digital instrument control verification system comprises the following steps:
generating an operation instruction, wherein the operation instruction is sent to a simulation module through a verification control station;
the second step, responding to the operation instruction, the simulation module adjusts operation data according to the operation instruction, returns the operation data to the control logic module, and the control logic module performs corresponding business logic processing, wherein the business logic processing comprises real-time calculation and analysis of the working condition of the nuclear power unit based on the operation data, measurement of working condition deviation, correction of DCS configuration logic and parameters, and generation of a nuclear power unit operation control instruction based on the corrected DCS configuration logic and parameters, wherein an NC-level control cabinet operates operation field equipment based on the operation instruction, and a 1E-level virtual controller and an NC-level virtual controller virtually operate virtual equipment based on the operation instruction;
thirdly, responding to the control instruction, dynamically responding by the simulation module according to the control instruction to obtain a corresponding processing result, returning the processing result to the human-computer interface module through the control logic module, and simultaneously transmitting operation data to the verification control module;
the first unit and the second unit may be operated in parallel, or one of the units may be operated, verifying whether the other unit is affected.
The invention has the beneficial effects that: in the prior art, two units are basically built together in an in-service nuclear power plant, and 1-layer networks of DCS systems of the two units are communicated and in the same ring network. If there is a potential design defect, the operation of the DCS system equipment of one unit may affect the operation of another unit. During the overhaul of a power plant, one unit is usually stopped, and the other unit is normally operated, so that the starting and stopping of some important system equipment can be involved for the stopped unit, and if the current unit is mistakenly sent, the unit is stopped and piled up under serious conditions. Similar events occur before, so that the verification coverage is wider by adopting double units, and the safe and stable operation of the power plant can be ensured. The invention relates to a nuclear power plant double-unit digital instrument control verification system, which is used as a pre-implementation platform before instrument control reconstruction and upgrading of a nuclear power plant, can be used for verifying the feasibility of an implementation scheme, reducing the possibility of non-stop caused by insufficient demonstration of the scheme, and can be used for carrying out reappearance analysis on a past non-stop event and checking similar problems in the instrument control system item by item as experience feedback. The digital instrument control verification system for the nuclear power plant double units is used for testing and verifying, so that the maintenance efficiency of the instrument control system is improved, an operation platform for skill training is provided for DCS operation and maintenance personnel of the nuclear power plant, and professional talents in the DCS operation and maintenance field are cultivated. The invention adopts a control system which is 1:1 with the actual running unit for the first time, and provides a solid foundation for checking potential design defects of the control system, verifying a DCS upgrading and reconstruction scheme of the unit, analyzing events, feeding back experience and the like.
The digital instrument control verification system for the nuclear power plant double-unit integrates various state monitoring, including the state of DCS control equipment, the state of a switch, the state of a virtual controller and the state of a workstation computer, realizes comprehensive monitoring, can comprehensively guide the running state of the control system of the nuclear power plant unit, meets the requirement of fine control, and improves the running reliability of the control system of the nuclear power plant unit; according to the invention, verification is carried out according to the fault information of the nuclear power unit and the reproduction fault of the DCS fault information, the DCS configuration is modified, the DCS configuration design is gradually perfected, and the occurrence of equipment fault conditions is reduced.
The foregoing description is only an overview of the technical solutions of the present invention, to the extent that it can be implemented according to the content of the specification by those skilled in the art, and to make the above-mentioned and other objects, features and advantages of the present invention more obvious, the following description is given by way of example of the present invention.
Detailed Description
The present invention will be described in further detail with reference to specific examples.
The DCS minimum system is configured with a complete physical NC-level field control cabinet unit and a 1E-level field control cabinet unit. Therefore, the method can finish off-line verification of the DCS system hardware replacement or upgrade scheme, and verification of the influence on field process equipment after the equipment localization substitution is finished.
Certain terms are used throughout the description and claims to refer to particular components. Those of skill in the art will understand that a person may refer to the same component by different names. The description and claims do not identify differences in terms of components, but rather differences in terms of the functionality of the components. As used throughout the specification and claims, the terms "include" and "comprise" are used in an open-ended fashion, and thus should be interpreted to mean "include, but not limited to. The description hereinafter sets forth a preferred embodiment for practicing the invention, but is not intended to limit the scope of the invention, as the description proceeds with reference to the general principles of the description. The scope of the invention is defined by the appended claims.
In order to facilitate an understanding of embodiments of the present invention, a further explanation will be provided below with reference to specific examples.
The digital instrument control verification system of the nuclear power plant double-unit comprises a simulation module, a control logic module and a human-computer interface module, wherein,
the simulation module is configured to simulate the operation of the first unit and the second unit of the nuclear power plant based on the operation instruction sent by the human-computer interface module and generate operation data, the simulation module comprises a first simulation model server for simulating the process system of the first unit of the nuclear power plant and a second simulation model server for simulating the process system of the second unit of the nuclear power plant, and the simulation module is in communication connection with the control logic module through the data communication server;
a control logic module configured to receive the operation command sent by the human-computer interface module and access the simulation module, and respond to the operation command to perform corresponding business logic processing, wherein the business logic processing comprises real-time calculation and analysis of the working conditions of the first and second units of the nuclear power plant based on the operation data, measurement of the working condition deviation, correction of DCS configuration logic and parameters, generation of the operation control command of the unit of the nuclear power plant based on the corrected DCS configuration logic and parameters, the control logic module comprises,
a DCS one-layer control system, which comprises a first safety level instrument control system and a first non-safety level instrument control system which are used for running a first unit control logic configuration of a nuclear power plant, and a second safety level instrument control system and a second non-safety level instrument control system which are used for running a second unit control logic configuration of the nuclear power plant, wherein the first safety level instrument control system and the second safety level instrument control system respectively comprise a 1E-level virtual controller, a 1E channel controller and a first switching unit used for communication, the first non-safety level instrument control system and the second non-safety level instrument control system respectively comprise an NC-level virtual controller used for controlling the virtual equipment, an NC-level control cabinet used for controlling the virtual equipment and a second switching unit used for communication, the 1E channel controller and the NC-level control cabinet are respectively connected with a data communication server through I/O interface communication,
a first AW interface server and a second AW interface server which are respectively connected with the first exchange unit and the second exchange unit in a communication way,
first and second front-end servers communicatively coupled to the first and second AW interface servers, respectively,
a first HST/ALM/MTK/AW/CSA server and a second HST/ALM/MTK/AW/CSA server configured to a historian, alarm, clock, AW engineer station and CSA station, the first HST/ALM/MTK/AW/CSA server and the second HST/ALM/MTK/AW/CSA server communicatively coupled to the DCS one-tier control system and the first and second AW interface servers, respectively;
a human-machine interface module configured to send an operation instruction to the control logic module and receive a processing result returned by the control logic module, the human-machine interface module comprising,
a first human-machine interface and a second human-machine interface configured to implement corresponding human-machine interaction operations, and to transmit corresponding operation instructions to the first non-security level instrument control system and the second non-security level instrument control system, and to receive returned processing results,
the first security level DCS human-computer interface and the second security level DCS human-computer interface are configured to realize corresponding human-computer interaction operation, send corresponding operation instructions to the first security level instrument control system and the second security level instrument control system, and receive returned processing results.
A first verification control module and a second verification control module, which are configured to send operation instructions to the simulation module and receive processing results returned by the simulation module, wherein the verification control station comprises,
the first verification control station and the second verification control station are configured to realize corresponding man-machine interaction operation, an operator executes corresponding operation according to requirements, the control station sends corresponding operation instructions to the process simulation model, and a processing result corresponding to the model dynamic state is received.
In one embodiment, the simulation module of the dual-unit digital instrument control verification system of the nuclear power plant can simulate various operation conditions of the nuclear power plant, and simulate the fault mode of the nuclear power plant equipment. The simulation module can receive the control instruction sent by the DCS control logic module, perform equipment action and feed back the equipment state to the DCS control logic. The process system simulated by the simulation model server comprises: a reactor core physical simulation model, a main loop thermal hydraulic simulation model, a process flow simulation model, an electrical system simulation model, a containment simulation model and the like.
In one embodiment of the dual-unit digital instrument control verification system of a nuclear power plant, the dual-unit digital instrument control verification system of the nuclear power plant further comprises a verification control module, the verification control module is configured to generate fault information of the unit of the nuclear power plant and send the control logic module, the control logic module performs corresponding business logic processing based on the fault information of the unit of the nuclear power plant and generates control instructions, and the simulation module simulates operation of the first unit and the second unit of the nuclear power plant based on the control instructions and generates operation data to feed back the verification control module.
In one embodiment of the dual-unit digital instrument control verification system of the nuclear power plant, when the dual-unit digital instrument control verification system of the nuclear power plant fails, the control logic module generates DCS fault information, calculates and analyzes working conditions of a first unit and a second unit of the nuclear power plant based on the DCS fault information, measures working condition deviation and corrects DCS configuration logic and parameters.
In one embodiment of the dual-unit digital instrument control verification system of the nuclear power plant, the unsafe control logic configuration comprises a physical control cabinet with minimum configuration, other cabinets are simulated by adopting a 3D simulation mode, physical controllers and virtual controllers, control logic configuration engineering consistent with the nuclear power plant, a configuration engineer station is connected with an interface of a process system, the physical cabinets are realized by adopting a hard-wired mode, the virtual controllers are realized by adopting a software communication mode, and the like.
In one embodiment of the dual unit digital instrument control verification system of a nuclear power plant, the process system comprises a simulation model unit for simulating a nuclear island, a conventional island and a BOP part, and the simulation model server comprises a simulator for simulating the process system in a 1:1 mode.
In one embodiment of the dual-unit digital instrument control verification system of a nuclear power plant, the first switching unit comprises gateway equipment and a switch respectively connected with the 1E-level virtual controller and the 1E channel controller, and the second switching unit comprises a switch respectively connected with the NC-level virtual controller and the NC-level control cabinet.
In one embodiment of the dual-unit digital instrument control verification system of the nuclear power plant, the DCS one-layer control system further comprises a Root switch for data interaction, the first switching unit and the second switching unit are respectively provided with a Room switch, and the second switching unit comprises a field communication protocol for communicating field devices and a virtual communication protocol for communicating virtual devices.
In one embodiment of the dual-unit digital instrument control verification system of the nuclear power plant, the DCS one-layer control system is in communication connection with the human-computer interface module via a third switching unit, and the DCS one-layer control system further comprises first and second DCS two-layer calculation servers for calculating the device states of the first and second units of the nuclear power plant, respectively, a history data server and a real-time data server.
In one embodiment of the dual-unit digital instrument control verification system of the nuclear power plant, the control logic module is a DCS control logic module of the nuclear power plant and comprises non-safety-level and safety-level control logic. The control logic module can receive the operation instruction of the DCS man-machine interface module, send the instruction to the simulation module after performing logic operation, receive the equipment feedback state of the model, and feed back to the DCS man-machine interface module for display after performing logic operation.
In one embodiment of the dual unit digitizer controlled verification system of a nuclear power plant, the human-machine interface module further comprises,
a first DGS station and a second DGS station, each communicatively coupled to a non-security level control system, the DGS stations configured to generate a control logic configuration offline,
a first and a second listing center configured to lock predetermined equipment of first and second units of the nuclear power plant, respectively.
In one embodiment of the nuclear power plant double-unit digital instrument control verification system, the nuclear power plant DCS human-computer interface comprises a non-safety-level human-computer interface and a safety-level human-computer interface, the safety-level human-computer interface is realized in an analog simulation mode, and the safety-level DCS human-computer interface is consistent with the configuration of the nuclear power plant DCS human-computer interface. The man-machine interface includes OWP operator stations, DGS configuration engineer stations, history stations, interface stations with control logic, and the like. And operating engineering data of a human-computer interface of the DCS of the nuclear power plant, wherein the engineering data comprise functions of flow chart operation display, alarm, log, trend, and the like. The man-machine interface module is mainly responsible for the operation of the nuclear power plant equipment and displays the feedback state of the equipment.
In one embodiment of the dual-unit digital instrument control verification system of the nuclear power plant, the simulation module takes a reference unit of the nuclear power plant as a simulation object, and a 1:1 simulation process system of the reference unit comprises a verification control function.
In one embodiment of the dual-Unit digital instrument control verification system of the nuclear power plant, the first simulation model server is a Unit1 simulation model server, and runs a simulation model program of a process system of the nuclear power plant. The second simulation model server is a Unit2 simulation model server, and runs a simulation model program of the nuclear power plant process system.
In one embodiment of the dual-unit digital instrument control verification system of the nuclear power plant, the data communication server is an L1L0 data communication server which is responsible for data interaction between the simulation model and the DCS system.
In one embodiment of the dual-unit digital instrument control verification system of the nuclear power plant, a DCS one-layer control system runs a power plant control logic configuration, wherein the DCS one-layer control system comprises a first unsafe level and a second unsafe level, and a first safe level instrument control system and a second safe level instrument control system, and control of a scale of 1:1 of the running power plant is achieved.
In one embodiment of the dual unit digital instrument control verification system of a nuclear power plant, the first and second security level and the first and second non-security level instrument control systems of the control logic module all adopt virtual machine control systems, and the control logic is downloaded from a field unit.
In one embodiment of the dual-unit digital instrument control verification system of the nuclear power plant, the first and second AW interface servers are DCS1 layer communication servers; SAR is a historical data server; STR is a real-time data server; CFR is a front-end server, DCS is a 2-layer communication server; CCT is a central server and is responsible for all KIC data processing; OWP is an operator station responsible for plant operation control and parameter monitoring; the TAGGING is a card hanging center and is responsible for hanging cards for equipment; DGS is a two-layer engineer station;
in one embodiment of the dual unit digital instrument control verification system of a nuclear power plant, the process system model part comprises a nuclear island, a conventional island and a BOP part, and the simulation range and the precision reference are all range simulators.
In one embodiment of the dual-unit digital instrument control verification system of the nuclear power plant, the man-machine interface comprises an operation unit main control room control interface OWP, TAGGING, DGS, SVDU, an instrument control operation and maintenance support system and the like.
In one embodiment of the dual-unit digital instrument control verification system of the nuclear power plant, the dual-unit digital instrument control verification system of the nuclear power plant is networked through an industrial Ethernet.
In one embodiment of the dual-unit digital instrument control verification system of the nuclear power plant, the NC-level control cabinet comprises a power supply, a controller, a communication interface module and a wiring terminal.
The instrument control verification method by using the nuclear power plant double-unit digital instrument control verification system comprises the following steps,
a first step of generating an operation instruction, which is sent to the simulation module via the authentication control station,
and a second step, responding to the operation instruction, adjusting the operation data by the simulation module according to the operation instruction, and returning the operation data to the logic control layer. The control logic module performs corresponding service logic processing, wherein the service logic processing comprises real-time calculation and analysis of the working condition of the nuclear power unit based on the operation data, measurement of the working condition deviation, correction of DCS configuration logic and parameters, generation of a nuclear power unit operation control instruction based on the corrected DCS configuration logic and parameters, operation of the field device based on the operation instruction by the NC-level control cabinet, virtual operation of the virtual device based on the operation instruction by the 1E-level virtual controller and the NC-level virtual controller,
and thirdly, responding to the control instruction, and dynamically responding by the simulation module according to the control instruction to obtain a corresponding processing result, wherein the processing result is returned to the human-computer interface module through the control logic module. And meanwhile, the operation data are sent to the verification control module.
The first and second units may be operated in parallel or one of the units may be operated to verify that the other unit is affected.
The method can optimize and verify the running condition of the nuclear power plant unit through business logic processing, check the potential design defects of the control system, verify the DCS upgrading and reconstruction scheme of the unit, provide a solid foundation for event analysis, experience feedback and the like, realize comprehensive monitoring, and can comprehensively guide the running state of the control system of the nuclear power plant unit and meet the requirement of fine control.
The fault verification method by using the double-unit digital instrument control verification system of the nuclear power plant comprises the following steps,
a first step of generating fault information of a nuclear power plant unit and transmitting the simulation module,
and a second step, responding to the fault information of the nuclear power plant unit, generating operation data by the simulation model according to the fault information, and sending the operation data to a control logic module. The control logic module formulates corresponding control commands according to the collected operation data and control strategies and sends the control commands to the simulation module,
and thirdly, responding to the control instruction, executing the control instruction by the simulation module to obtain a corresponding processing result, and returning the processing result to the human-computer interface module through the control logic module. And meanwhile, the operation data are sent to the verification control module.
The first and second units may be operated in parallel or one of the units may be operated to verify that the other unit is affected.
According to the nuclear power fault information, the method realizes the reproduction of the fault working condition, verifies and analyzes the fault working condition, summarizes the fault source, provides powerful basis and direction for perfecting DCS configuration design and DCS maintenance, and reduces the occurrence of the fault working condition.
The fault verification method comprises the following steps that when the double-unit digital instrument control verification system of the nuclear power plant fails, the control logic module generates DCS fault information, and based on the DCS fault information, the control logic module calculates and analyzes the working condition of the double-unit digital instrument control verification system of the nuclear power plant, measures the working condition deviation and corrects DCS configuration logic and parameters.
A computer readable medium which when executed performs the method.
The graphical user interface comprises the nuclear power plant double-unit digital instrument control verification system.
Those skilled in the art will appreciate that implementing all or part of the above-described methods may be accomplished by way of a computer program, which may be stored on a computer readable storage medium and which, when executed, may comprise the steps of embodiments of the methods described above. The storage medium may be a magnetic disk, an optical disk, a read-only memory, a random access memory, or the like.
Industrial applicability
The system and the method for digital instrument control verification of the nuclear power plant double units can be manufactured and used in the field of nuclear power plants.
The basic principles of the present application have been described above in connection with specific embodiments, however, it should be noted that the advantages, benefits, effects, etc. mentioned in the present application are merely examples and not limiting, and these advantages, benefits, effects, etc. are not to be considered as necessarily possessed by the various embodiments of the present application. Furthermore, the specific details disclosed herein are for purposes of illustration and understanding only, and are not intended to be limiting, as the application is not intended to be limited to the details disclosed herein as such.
The foregoing description has been presented for purposes of illustration and description. Furthermore, this description is not intended to limit the embodiments of the application to the form disclosed herein. Although a number of example aspects and embodiments have been discussed above, a person of ordinary skill in the art will recognize certain variations, modifications, alterations, additions, and subcombinations thereof.
Claims (10)
1. Double-unit digital instrument control verification system of nuclear power plant, its characterized in that: comprises a simulation module, a control logic module and a human-computer interface module, wherein,
the simulation module comprises a first simulation model server for simulating a first unit process system of the nuclear power plant and a second simulation model server for simulating a second unit process system of the nuclear power plant, the simulation module is in communication connection with the control logic module through the data communication server, and the simulation module simulates the operation of the first unit and the second unit of the nuclear power plant based on the operation instruction sent by the man-machine interface module and generates operation data;
the control logic module receives the operation instruction sent by the human-computer interface module and accesses the simulation module, responds to the operation instruction to perform corresponding business logic processing, the business logic processing comprises real-time calculation and analysis of the working conditions of the first and second units of the nuclear power plant, measurement working condition deviation and correction of DCS configuration logic and parameters based on the operation data, and generates the operation control instruction of the unit of the nuclear power plant based on the corrected DCS configuration logic and parameters,
the control logic module may comprise a logic module configured to,
a DCS one-layer control system, which comprises a first safety level instrument control system and a first non-safety level instrument control system which are used for running a first unit control logic configuration of a nuclear power plant, and a second safety level instrument control system and a second non-safety level instrument control system which are used for running a second unit control logic configuration of the nuclear power plant, wherein the first safety level instrument control system and the second safety level instrument control system respectively comprise a 1E-level virtual controller, a 1E channel controller and a first switching unit used for communication, the first non-safety level instrument control system and the second non-safety level instrument control system respectively comprise an NC-level virtual controller used for controlling the virtual equipment, an NC-level control cabinet used for controlling the virtual equipment and a second switching unit used for communication, the 1E channel controller and the NC-level control cabinet are respectively connected with a data communication server through I/O interface communication,
a first AW interface server and a second AW interface server which are respectively connected with the first exchange unit and the second exchange unit in a communication way,
a first front-end server and a second front-end server which are respectively connected with the first AW interface server and the second AW interface server in a communication way,
the first HST/ALM/MTK/AW/CSA server and the second HST/ALM/MTK/AW/CSA server comprise a history library, an alarm, a clock, an AW engineer station and a CSA station, and the first HST/ALM/MTK/AW/CSA server and the second HST/ALM/MTK/AW/CSA server are respectively in communication connection with the DCS one-layer control system and the first AW interface server and the second AW interface server;
the man-machine interface module sends an operation instruction to the control logic module and receives a processing result returned by the control logic module;
the human-machine interface module comprises a human-machine interface module,
the first human-computer interface and the second human-computer interface realize corresponding human-computer interaction operation, send corresponding operation instructions to the first non-security level instrument control system and the second non-security level instrument control system, receive returned processing results,
the first security level DCS human-computer interface and the second security level DCS human-computer interface realize corresponding human-computer interaction operation, send corresponding operation instructions to the first security level instrument control system and the second security level instrument control system, and receive returned processing results.
2. The nuclear power plant double unit digital instrument control verification system of claim 1, wherein: the system also comprises a verification control module, which sends an operation instruction to the simulation module and receives the processing result returned by the simulation module, wherein the verification control module comprises,
the first verification control station and the second verification control station realize corresponding man-machine interaction operation, an operator executes corresponding operation according to requirements, the control station sends corresponding operation instructions to the process simulation model, and a processing result corresponding to the model dynamic state is received.
3. The nuclear power plant double unit digital instrument control verification system of claim 2, wherein: the verification control module generates fault information of the nuclear power plant unit and sends the simulation module, the simulation module carries out corresponding business logic processing based on the fault information of the nuclear power plant unit and generates operation data, the verification control module and the logic control module are fed back, the logic control module formulates corresponding control and regulation strategies according to the change of process parameters in the simulation module and generates control instructions, the control instructions are sent to the simulation module, the simulation module carries out corresponding business processing and generates dynamic response operation data, and the first unit and the second unit can operate the functions in parallel.
4. The nuclear power plant double unit digital instrument control verification system of claim 1, wherein: when the dual-unit digital instrument control verification system of the nuclear power plant fails, the control logic module generates DCS fault information, calculates and analyzes working conditions of the first unit and the second unit of the nuclear power plant based on the DCS fault information, measures working condition deviation and corrects DCS configuration logic and parameters.
5. The nuclear power plant double unit digital instrument control verification system of claim 1, wherein: the first switching unit comprises gateway equipment and a switch which is respectively connected with the 1E-level virtual controller and the 1E channel controller, and the second switching unit comprises a switch which is respectively connected with the NC-level virtual controller and the NC-level control cabinet.
6. The nuclear power plant double unit digital instrument control verification system of claim 1, wherein: the process system comprises a simulation model unit for simulating a nuclear island, a conventional island and a BOP part, and a simulation model server comprises a simulator for 1:1 simulation of the process system.
7. The nuclear power plant double unit digital instrument control verification system of claim 1, wherein: the DCS one-layer control system further comprises a Root switch for data interaction, the first switching unit and the second switching unit are respectively provided with a Room switch, and the second switching unit comprises a field communication protocol for communicating field devices and a virtual communication protocol for communicating virtual devices.
8. The nuclear power plant double unit digital instrument control verification system of claim 1, wherein: the DCS one-layer control system is in communication connection with the man-machine interface module through a third exchange unit, and further comprises a first DCS two-layer calculation server, a second DCS two-layer calculation server, a historical data server and a real-time data server, wherein the first DCS two-layer calculation server and the second DCS two-layer calculation server are respectively used for calculating equipment states of a first unit and a second unit of the nuclear power plant.
9. The nuclear power plant double unit digital instrument control verification system of claim 1, wherein: the human-machine interface module further comprises,
a first DGS station and a second DGS station, each communicatively coupled to a non-security level control system, the DGS stations configured to generate a control logic configuration offline,
a first and a second listing center configured to lock predetermined equipment of first and second units of the nuclear power plant, respectively.
10. A method of instrument control verification using the dual unit digitizer instrument control verification system of a nuclear power plant of any one of claims 1-9, comprising the steps of:
generating an operation instruction, wherein the operation instruction is sent to a simulation module through a verification control station;
the second step, responding to the operation instruction, the simulation module adjusts operation data according to the operation instruction, returns the operation data to the control logic module, and the control logic module performs corresponding business logic processing, wherein the business logic processing comprises real-time calculation and analysis of the working condition of the nuclear power unit based on the operation data, measurement of working condition deviation, correction of DCS configuration logic and parameters, and generation of a nuclear power unit operation control instruction based on the corrected DCS configuration logic and parameters, wherein an NC-level control cabinet operates operation field equipment based on the operation instruction, and a 1E-level virtual controller and an NC-level virtual controller virtually operate virtual equipment based on the operation instruction;
thirdly, responding to the control instruction, dynamically responding by the simulation module according to the control instruction to obtain a corresponding processing result, returning the processing result to the man-machine interface layer through the control logic module, and simultaneously transmitting operation data to the verification control module;
the first unit and the second unit may be operated in parallel, or one of the units may be operated, verifying whether the other unit is affected.
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