CN106773795A - The inline diagnosis of Power Plant Thermal control logic and optimization device based on virtual objects - Google Patents
The inline diagnosis of Power Plant Thermal control logic and optimization device based on virtual objects Download PDFInfo
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- CN106773795A CN106773795A CN201710120423.0A CN201710120423A CN106773795A CN 106773795 A CN106773795 A CN 106773795A CN 201710120423 A CN201710120423 A CN 201710120423A CN 106773795 A CN106773795 A CN 106773795A
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- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B17/00—Systems involving the use of models or simulators of said systems
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Abstract
The invention discloses a kind of Power Plant Thermal control logic inline diagnosis based on virtual objects and optimization device, including the virtual emulation object server, real time data server, DCS control systems and the PLC control system that are connected by Ethernet, it is connected to the DCS system Thermal Meter of DCS control systems, and the PLC system Thermal Meter for being connected to PLC control system.The present invention is using DCS control systems and PLC control system and high accuracy Virtual Simulation, reappear thermal power plant's production scene control object response characteristic and realize the optimization of control system logic, and can be to the fault diagnosis of live thermal control process logic and analysis using real time data server under accident conditions, the crash analysis of Power Plant Thermal logic, inline diagnosis, thermodynamic test and logic optimization are disclosure satisfy that, Power Plant Thermal is successfully solved and is controlled the high cost and risk of configuration optimization and debugging big and thermal technology's logic fault difficult diagnosis problem.
Description
Technical field
The present invention relates to a kind of inline diagnosis and optimization device, more particularly to a kind of thermal power plant's heat based on virtual objects
The inline diagnosis of work control logic and optimization device, belong to control system technical field.
Background technology
Thermal control configuration logic is most important for modern large thermal power plant, during power plant units production run, has
Substantial amounts of thermal control configuration logic needs to optimize and improves.But consider for safety and economic factor, it is impossible to during unit operation
Substantial amounts of experiment and configuration and debugging work are carried out online, but because equipment is in stoppage in transit state during unit outage, so as to lack
Effective creation data cannot carry out corresponding experiment and Optimization Work.The logic flaw of DCS control systems and PLC control system
Certain failure and accident can be caused, needs to study casualty data repeatedly for the analysis of such failure and accident, at present to thing
Therefore the analysis of data lacks effective means.In a word, at present for the casualty data point of DCS control systems and PLC control system
The optimization of analysis, fault diagnosis and control system lacks effective means.
In consideration of it, needing a set of thermal control process logic that can at utmost represent production scene controlled device characteristic of research and development to exist
Radiodiagnosis x and optimization device, to meet the demand of thermal control technical staff thermal control configuration inline diagnosis and optimization.
In view of the complexity of thermal power plant's production system, the support of control object is needed when configuration Optimization Debugging is controlled,
The operating condition of production scene can be realized again repeatedly；It is impossible in process of production because security and economy consider
It is repeated continuously the characteristic of same control object.So developing a kind of inline diagnosis of thermal control process logic and optimization device, energy
The advanced requirement for meeting thermal control control system fault diagnosis, experiment and optimization is beneficial act.
The content of the invention
It is a primary object of the present invention to overcome deficiency of the prior art, there is provided a kind of thermoelectricity based on virtual objects
Factory's thermal control process logic inline diagnosis and optimization device, disclosure satisfy that the crash analysis of Power Plant Thermal logic, inline diagnosis, thermal technology
Experiment and logic optimization, successfully the high cost and risk of the optimization of solution Power Plant Thermal control configuration and debugging are big and thermal technology patrols
Collect the difficult problem of fault diagnosis.
In order to achieve the above object, the technical solution adopted in the present invention is：
A kind of Power Plant Thermal control logic inline diagnosis based on virtual objects and optimization device, including connected by Ethernet
Virtual emulation object server, real time data server, DCS control systems and PLC control system, be connected to DCS controls system
The DCS system Thermal Meter of system, and it is connected to the PLC system Thermal Meter of PLC control system；The virtual emulation object clothes
Business device, real time data server, DCS control systems, PLC control system, DCS system Thermal Meter and PLC system Thermal Meter
It is arranged in the laboratory of laying electrostatic floor according to thermal power plant's actual production installation requirement, the DCS control systems, PLC
Control system, DCS system Thermal Meter and PLC system Thermal Meter are installed according to thermal power plant's actual production technological design, institute
State that DCS control systems and PLC control system be parallel and independent operating.
Wherein, the virtual emulation object server is used to run some virtual emulation project softwares, by real equipment
Object, thermal power plant's production technology and production procedure carry out mathematical modeling expression in the form of virtual emulation object, and carry out thermoelectricity
Factory thermal technology configuration logic optimizes, and virtual emulation object therein includes dynamic characteristic and each virtual thermal technology of virtual thermal object
Connection and influence relation between object；The real time data server is used to manage real-time production data, will in real time produce number
According to being recurred and played back, and accident conditions are carried out with the inline diagnosis of Power Plant Thermal control logic, real-time production therein
Data come from DCS control systems and PLC control system；The DCS control systems are used for experimental simulation power plant operation DCS
Control section；The PLC control system is used for experimental simulation power plant operation PLC control sections；The DCS system thermal technology
Instrument is used for the DCS system heat power engineering signal of experimental simulation power plant operation, and DCS system heat power engineering signal is sent into DCS
Control system；The PLC system Thermal Meter is used for the PLC system heat power engineering signal of experimental simulation power plant operation, and will
PLC system heat power engineering signal is sent to PLC control system.
The present invention is further arranged to：The DCS control systems connect redundancy DCS and control by general 485 interface module
System, the PLC control system connects redundant PLC control system also by general 485 interface module.
The present invention is further arranged to：The DCS system Thermal Meter is connected to DCS control systems, institute by hardwire
State PLC system Thermal Meter and be connected to PLC control system also by hardwire.
The present invention is further arranged to：The hardwire is communication cable.
The present invention is further arranged to：The virtual emulation project software include DCS configuration softwares, PLC configuration softwares, on
Position machine software and simulation model software.
The present invention is further arranged to：The virtual thermal object be thermal power plant's control object, including unit cooperative control,
To water management, Combustion System, Boiler pressure control, temperature control, deaerator level and Stress control, the control of condenser water level of thermal well, height
Low plus water lev el control, chemical thermal power plant, defeated coal and ash disposal control.
The present invention is further arranged to：The real time data server includes live real-time dataBase system, gateway sum
According to communication software, the data communication software is responsible for reading creation data from production scene, and the gateway ensures that data are unidirectionally read
Take to live real-time dataBase system.
The present invention is further arranged to：The DCS control systems include that the DCS switch boards connected by Ethernet, DCS are grasped
Work person stands and DCS engineer stations；The DCS switch boards include DPU modules, and the DCS switching values being connected with DPU module communications are defeated
Enter module, DCS switching value output modules, DCS Analog input mModules, DCS analog output modules and some DCS communication mould
Block.
The present invention is further arranged to：The PLC control system includes that the PLC control cabinet connected by Ethernet, PLC are grasped
Work person stands and PLC engineer stations；The PLC control cabinet includes CPU module, the PLC Ethernet moulds being connected by communication with CPU module
Block, PLC synchronization modules, PLC switching input modules, PLC switching value output modules, PLC Analog input mModules, PLC simulations
Amount output module and some PLC communication modules.
The present invention is further arranged to：The DCS system Thermal Meter and PLC system Thermal Meter include pressure inverting
Device, pressure switch, liquid-level switch, thermal resistance, thermocouple, electronic adjustable executing agency, electronic two formula electric operators,
Pneumatic adjustment actuating mechanism and frequency converter.
Compared with prior art, the invention has the advantages that：
The a set of thermal control process logic researched and developed using DCS control systems and PLC control system and high accuracy Virtual Simulation is existed
Radiodiagnosis x and optimization device, wherein using DCS control systems, PLC control system, DCS system Thermal Meter and PLC system thermal technology
Instrument is installed according to thermal power plant's actual production technological design, power plant operation control section is represent, while virtual emulation
Object represents power plant operation control right using method simulation each equipment of thermal power plant and the production process of mathematical modeling
As part；By both combinations, the dynamic that can accurately reproduce produce reality process and repeat actual production process is special
Property, on-line debugging and the optimization of control logic configuration are successfully realized, such that it is able to optimizing and improving control strategy and method, and test
The improved control strategy of card institute, saves substantial amounts of man power and material, reduces field adjustable risk, improves the security of unit；Together
When can obtain production process data from actual production control system using real-time data base, and play back in a device and recur,
Casualty data is contributed to analyze and judge, so as to judge and correct thermal technology's logic error.
The above is only the general introduction of technical solution of the present invention, in order to be better understood upon technological means of the invention, under
With reference to accompanying drawing, the invention will be further described in face.
Brief description of the drawings
Fig. 1 is that the structure of Power Plant Thermal control logic inline diagnosis and optimization device of the present invention based on virtual objects is shown
It is intended to；
Fig. 2 is DCS switch boards in the inline diagnosis of Power Plant Thermal control logic and optimization device of the present invention based on virtual objects
Structural representation；
Fig. 3 is PLC control cabinet in the inline diagnosis of Power Plant Thermal control logic and optimization device of the present invention based on virtual objects
Structural representation.
Specific embodiment
With reference to Figure of description, the present invention is further illustrated.
The present invention provides a kind of Power Plant Thermal control logic inline diagnosis based on virtual objects and optimization device, such as schemes
Shown in 1, including virtual emulation object server, real time data server, DCS control systems and the PLC connected by Ethernet
Control system, is connected to the DCS system Thermal Meter of DCS control systems, and the PLC system heat for being connected to PLC control system
Work instrument；The DCS system Thermal Meter is connected to DCS control systems by hardwire, and the PLC system Thermal Meter also leads to
Cross hardwire and be connected to PLC control system, the hardwire is communication cable.
The virtual emulation object server, real time data server, DCS control systems, PLC control system, DCS system
Thermal Meter and PLC system Thermal Meter are arranged in the experiment of laying electrostatic floor according to thermal power plant's actual production installation requirement
Interior, the DCS control systems, PLC control system, DCS system Thermal Meter and PLC system Thermal Meter are according to thermal power plant
Actual production technological design is installed, and the DCS control systems and PLC control system be parallel and independent operating.Wherein virtual emulation
The computer that object server and real time data server are used, and corresponding supporting computer chair is arranged to movable,
Remaining device is required to fixed installation so that laboratory environment is close to actual production process.
As shown in figure 1, the DCS control systems connect redundancy DCS control systems by general 485 interface module, it is described
PLC control system connects redundant PLC control system also by general 485 interface module.
The virtual emulation object server be used for run some virtual emulation project softwares, by real device object,
Thermal power plant's production technology and production procedure carry out mathematical modeling expression in the form of virtual emulation object, and carry out Power Plant Thermal
Configuration logic optimizes, the dynamic characteristic and each virtual thermal object of virtual emulation object therein including virtual thermal object it
Between connection and influence relation；The virtual emulation project software includes DCS configuration softwares, PLC configuration softwares, upper computer software
With simulation model software；The virtual thermal object be thermal power plant's control object, including unit cooperative control, to water management, combustion
Burn control, Boiler pressure control, temperature control, deaerator level and Stress control, the control of condenser water level of thermal well, just add water position control
System, chemical thermal power plant, defeated coal and ash disposal control.
The real time data server is used to manage real-time production data, and real-time production data is recurred and played back,
And accident conditions are carried out with the inline diagnosis of Power Plant Thermal control logic, real-time production data therein controls system from DCS
System and PLC control system；The real time data server includes live real-time dataBase system, gateway and data communication software,
The data communication software is responsible for reading creation data from production scene, and the gateway ensures that data are unidirectionally read to scene in real time
Database Systems.
The DCS control systems are used for experimental simulation power plant operation DCS control sections；As shown in figure 1, described
DCS control systems include the DCS switch boards, DCS operator station and the DCS engineer stations that are connected by Ethernet；As shown in Fig. 2
The DCS switch boards include DPU modules, the DCS switching input modules being connected with DPU module communications, DCS output switch parameters
Module, DCS Analog input mModules, DCS analog output modules and some DCS communication modules.
The PLC control system is used for experimental simulation power plant operation PLC control sections；As shown in figure 1, described
PLC control system includes the PLC control cabinet, PLC operator stations and the PLC engineer stations that are connected by Ethernet；As shown in figure 3,
The PLC control cabinet includes CPU module, and the PLC ethernet modules being connected by communication with CPU module, PLC synchronization modules, PLC are opened
It is logical that input module, PLC switching value output modules, PLC Analog input mModules, PLC analog output modules and some PLC are measured in pass
News module.
The DCS switch boards and PLC control cabinet use standard switch board, the design requirement such as its protection, monitoring, function and
Reality is consistent, it is desirable to meet enabling, the interior installation easy-to-connect of cabinet before and after switch board.
The DCS system Thermal Meter is used for the DCS system heat power engineering signal of experimental simulation power plant operation, and will
DCS system heat power engineering signal is sent to DCS control systems；The PLC system Thermal Meter was produced for experimental simulation thermal power plant
The PLC system heat power engineering signal of journey, and PLC system heat power engineering signal is sent to PLC control system.
The DCS system Thermal Meter and PLC system Thermal Meter include that pressure transmitter, pressure switch, liquid level are opened
Pass, thermal resistance, thermocouple, electronic adjustable executing agency, electronic two formula electric operators, pneumatic adjustment actuating mechanism and
The instrument devices such as frequency converter, these instrument devices are all fixed on instrument calibration, and its cable is through protection pipe and crane span structure so that
Overall appearance is neat, and space is larger before and after instrument calibration, and training is installed and debugging is convenient.Pressure transmitter therein and pressure switch
Connection pressure piping and once, the gauge valve such as secondary, blowdown, and connect instrument air with pressure, facilitate actual pressure simulated test；
Thermocouple and thermal resistance can select armored type, be easy to facilitate actual temperature simulated test；Instrument calibration can also carry out actual field and set
Standby installation and debugging training.
Innovative point of the invention is thermal power plant's field control configuration to be transplanted in device, using Virtual Simulation
The control object of thermal power plant is set up, the closed loop of control system is realized；It is existing using the production of High Precision Simulation technique reproducible thermal power plant
Field control object response characteristic, so as to realize the optimization of control system logic；Under accident conditions, will be produced in real time using gateway
In data Cun Chudao real time data servers, can be to the fault diagnosis of live thermal control process logic and analysis；Thus it is possible to meet
The crash analysis of Power Plant Thermal logic, inline diagnosis, thermodynamic test and logic optimization, successfully solve Power Plant Thermal control configuration
The high cost and risk of optimization and debugging be big and problem of thermal technology's logic fault difficult diagnosis.
General principle of the invention, principal character and advantage has been shown and described above.The technical staff of the industry should
Understand, the present invention is not limited to the above embodiments, simply original of the invention is illustrated described in above-described embodiment and specification
Reason, without departing from the spirit and scope of the present invention, various changes and modifications of the present invention are possible, these changes and improvements
All fall within the protetion scope of the claimed invention.The claimed scope of the invention is by appending claims and its equivalent circle.
It is fixed.
Claims (10)
1. a kind of Power Plant Thermal control logic inline diagnosis based on virtual objects and optimization device, it is characterised in that：Including
Virtual emulation object server, real time data server, DCS control systems and the PLC control system connected by Ethernet, even
It is connected to the DCS system Thermal Meter of DCS control systems, and the PLC system Thermal Meter for being connected to PLC control system；
The virtual emulation object server, real time data server, DCS control systems, PLC control system, DCS system thermal technology
Instrument and PLC system Thermal Meter are arranged in the laboratory of laying electrostatic floor according to thermal power plant's actual production installation requirement
Interior, the DCS control systems, PLC control system, DCS system Thermal Meter and PLC system Thermal Meter are according to thermal power plant's reality
Border process design is installed, DCS control systems and PLC control system is parallel and independent operating；
The virtual emulation object server is used to run some virtual emulation project softwares, by real device object, thermoelectricity
Factory's production technology and production procedure carry out mathematical modeling expression in the form of virtual emulation object, and carry out Power Plant Thermal configuration
Logic optimization, virtual emulation object therein is included between the dynamic characteristic and each virtual thermal object of virtual thermal object
Connection and influence relation；
The real time data server is used to manage real-time production data, and real-time production data is recurred and played back, and right
Accident conditions carry out the inline diagnosis of Power Plant Thermal control logic, real-time production data therein from DCS control systems and
PLC control system；
The DCS control systems are used for experimental simulation power plant operation DCS control sections；
The PLC control system is used for experimental simulation power plant operation PLC control sections；
The DCS system Thermal Meter is used for the DCS system heat power engineering signal of experimental simulation power plant operation, and by DCS systems
System heat power engineering signal is sent to DCS control systems；
The PLC system Thermal Meter is used for the PLC system heat power engineering signal of experimental simulation power plant operation, and by PLC systems
System heat power engineering signal is sent to PLC control system.
2. the Power Plant Thermal control logic inline diagnosis based on virtual objects according to claim 1 and optimization device,
It is characterized in that：The DCS control systems connect redundancy DCS control systems, the PLC controls by general 485 interface module
System connects redundant PLC control system also by general 485 interface module.
3. the Power Plant Thermal control logic inline diagnosis based on virtual objects according to claim 1 and optimization device,
It is characterized in that：The DCS system Thermal Meter is connected to DCS control systems, the PLC system Thermal Meter by hardwire
PLC control system is connected to also by hardwire.
4. the Power Plant Thermal control logic inline diagnosis based on virtual objects according to claim 3 and optimization device,
It is characterized in that：The hardwire is communication cable.
5. the Power Plant Thermal control logic inline diagnosis based on virtual objects according to claim 1 and optimization device,
It is characterized in that：The virtual emulation project software includes DCS configuration softwares, PLC configuration softwares, upper computer software and emulation mould
Type software.
6. the Power Plant Thermal control logic inline diagnosis based on virtual objects according to claim 1 and optimization device,
It is characterized in that：The virtual thermal object be thermal power plant's control object, including unit cooperative control, to water management, burning control
System, Boiler pressure control, temperature control, deaerator level and Stress control, the control of condenser water level of thermal well, height plus water lev el control, fire
Power plant chemistry, defeated coal and ash disposal control.
7. the Power Plant Thermal control logic inline diagnosis based on virtual objects according to claim 1 and optimization device,
It is characterized in that：The real time data server includes live real-time dataBase system, gateway and data communication software, the number
It is responsible for reading creation data from production scene according to communication software, the gateway ensures that data are unidirectionally read to live real-time data base
System.
8. the Power Plant Thermal control logic inline diagnosis based on virtual objects according to claim 1 and optimization device,
It is characterized in that：The DCS control systems include the DCS switch boards, DCS operator station and the DCS engineerings that are connected by Ethernet
Teacher stands；The DCS switch boards include DPU modules, the DCS switching input modules being connected with DPU module communications, DCS switches
Amount output module, DCS Analog input mModules, DCS analog output modules and some DCS communication modules.
9. the Power Plant Thermal control logic inline diagnosis based on virtual objects according to claim 1 and optimization device,
It is characterized in that：The PLC control system includes the PLC control cabinet, PLC operator stations and the PLC engineerings that are connected by Ethernet
Teacher stands；The PLC control cabinet include CPU module, the PLC ethernet modules being connected by communication with CPU module, PLC synchronization modules,
PLC switching input modules, PLC switching value output modules, PLC Analog input mModules, PLC analog output modules and some
PLC communication modules.
10. the Power Plant Thermal control logic inline diagnosis based on virtual objects according to claim 1 and optimization device,
It is characterized in that：The DCS system Thermal Meter and PLC system Thermal Meter include pressure transmitter, pressure switch, liquid level
Switch, thermal resistance, thermocouple, electronic adjustable executing agency, electronic two formula electric operators, pneumatic adjustment actuating mechanism
And frequency converter.
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| CN108803508A (en) * | 2018-05-28 | 2018-11-13 | 中国神华能源股份有限公司 | Power Plant Thermal control algolithm application system and method |
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| CN110554675A (en) * | 2019-09-18 | 2019-12-10 | 台山核电合营有限公司 | Method and system for constructing, synchronizing, presenting and analyzing nuclear power DCS (distributed control System) offline database |
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| CN112965402A (en) * | 2021-02-19 | 2021-06-15 | 大唐东北电力试验研究院有限公司 | Independent control device and method for load of thermal power plant |
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| CN112965402A (en) * | 2021-02-19 | 2021-06-15 | 大唐东北电力试验研究院有限公司 | Independent control device and method for load of thermal power plant |
| CN112965402B (en) * | 2021-02-19 | 2022-11-15 | 大唐东北电力试验研究院有限公司 | Independent control device and method for load of thermal power plant |
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Application publication date: 20170531 |
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