CN103793338A - Boiler combustion optimization information transmission control system - Google Patents
Boiler combustion optimization information transmission control system Download PDFInfo
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- CN103793338A CN103793338A CN201410040567.1A CN201410040567A CN103793338A CN 103793338 A CN103793338 A CN 103793338A CN 201410040567 A CN201410040567 A CN 201410040567A CN 103793338 A CN103793338 A CN 103793338A
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- 238000002485 combustion reaction Methods 0.000 title claims abstract description 95
- 238000005457 optimization Methods 0.000 title claims abstract description 86
- 230000005540 biological transmission Effects 0.000 title claims abstract description 7
- 238000004891 communication Methods 0.000 claims abstract description 65
- 230000011664 signaling Effects 0.000 claims description 21
- 238000012546 transfer Methods 0.000 claims description 9
- 230000009183 running Effects 0.000 claims description 7
- 238000013461 design Methods 0.000 claims description 3
- 238000012795 verification Methods 0.000 abstract description 7
- 230000002159 abnormal effect Effects 0.000 abstract description 6
- 238000002955 isolation Methods 0.000 abstract description 6
- 238000000034 method Methods 0.000 description 9
- 238000005516 engineering process Methods 0.000 description 5
- 241001269238 Data Species 0.000 description 4
- 241000209140 Triticum Species 0.000 description 4
- 235000021307 Triticum Nutrition 0.000 description 4
- 241000700605 Viruses Species 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000004886 process control Methods 0.000 description 2
- 241000196324 Embryophyta Species 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
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Abstract
The invention provides a boiler combustion optimization information transmission control system. Boiler combustion optimization information of an SIS is converted into physical signals through a first industrial personal computer, the physical signals can be recognized by an AO data acquisition device, the AO data acquisition device is communicated with an AI data acquisition device at the end of a DCS through hardware wiring, and therefore physical isolation between the SIS and the DCS is achieved. The boiler combustion optimization information is transmitted to a second industrial personal computer in the mode of the physical signals, calculation is performed on the boiler combustion optimization information through the second industrial personal computer to generate combustion optimization control instructions, and then the combustion optimization control instructions are transmitted to a distributed control system through a serial port for combustion control. Hardware wiring is a basic data transmission mode, is a pure physical signal, and can shield abnormal information and guarantee that the safety of the DSC is not influenced. A serial port communication mode has a complete verification mechanism, and therefore the safety of data communication is guaranteed further.
Description
Technical field
The present invention relates to the technical field that electric boiler operation is controlled, particularly relate to a kind of boiler combustion optimization communication control system.
Background technology
Power plant will implement boiler combustion optimization technology, just needs boiler integrated performance index as support.And boiler integrated performance index information is kept at plant level supervisory information system (Supervisory Information System, SIS) in, these data to be delivered to dcs (Distributed Control System, DCS), in, just keep away unavoidably these two systems are connected.According to the division of electric power secondary system security protection system, DCS system belongs to ground floor, is place of safety I, and SIS system belongs to the second layer, is place of safety II.And " electrical network and power plant's computer supervisory control system and dispatching data network security protection regulation " Article 3 regulation, in electric system, the system that safe class is higher is not subject to the impact of the lower system of safe class, means and SIS system and DCS system directly can not be connected.
Having a kind of technical feasible mode is exactly to utilize the communications protocol of some standards, such as OPC agreement, relevant real time data in the middle of SIS system is sent in DCS system, this mode is easy to operate, only need to configure OPC Server and OPC Client, hardware cost is very cheap.But this method but comprises certain hidden danger, because adopt this kind of method likely the improper information such as the virus in the middle of outer net, wooden horse and abnormal data can be sent in the middle of DCS system, thereby cause the generation of fortuitous event, impact safety in production.In addition, OPC DCOM technology designed before network security problem is extensively familiar with, very easily under attack.Also more or less there is the hidden danger of this respect in the method that adopts other communications protocol to carry out data transmission, therefore this method is feasible in technology, but but safe not.
Summary of the invention
For the safe not technical matters of the communication mode of existing boiler combustion optimization technology.The present invention proposes a kind of boiler combustion optimization communication control system, in more reliable mode, increases the security of boiler combustion optimization communication control.
A kind of boiler combustion optimization communication control system, comprises the first industrial computer, AO data acquisition unit, AI data acquisition unit and the second industrial computer;
Described the first industrial computer connects described AO data acquisition unit, for obtain boiler combustion optimization information from supervisory information system, described boiler combustion optimization information is converted to the physical signalling that AO data acquisition unit gathers, and transfers to described AO data acquisition unit;
Described AO data acquisition unit is connected with described AI data acquisition unit by hardware connection, for described physical signalling is transferred to described AI data acquisition unit by described hardware connection;
Described AI data acquisition unit also connects described the second industrial computer, for described physical signalling being transferred to described the second industrial computer;
Described the second industrial computer is for being converted to described boiler combustion optimization information by described physical signalling, according to the instruction of described boiler combustion optimization Information generation combustion control, and by serial communication mode by described combustion control command to dcs.
In boiler combustion optimization communication control system of the present invention, by described the first industrial computer, the boiler combustion optimization information of SIS system is converted to the discernible physical signalling of AO data acquisition unit, AO data acquisition unit is communicated by letter with the AI data acquisition unit of DCS system end by hardware connection, realizes the physical isolation between SIS system and DCS system.Described boiler combustion optimization information is transferred to described the second industrial computer with the form of physical signalling, described the second industrial computer carries out computing to described boiler combustion optimization information, generate combustion control instruction, then transfer to the dcs control of burning by serial ports.Hardwire is most basic data mode, it links up signal measuring point, data line, connection terminal, data acquisition fastener and data acquisition unit by certain way, represent data by the current signal of 4～20mA, it is a kind of pure physical signalling, can mask by means of improper information such as virus, wooden horse and the abnormal datas of Internet communication, guarantee that the security of DCS system is unaffected.Serial communication (RS232/RS485) mode has improves verification scheme (LRC verification or CRC check), whether the data that it can relatively send are consistent with the data that receive, if inconsistent, can not accept these data, further guarantee the security of data communication.
Accompanying drawing explanation
Fig. 1 is the structural representation of boiler combustion optimization communication control system of the present invention;
Fig. 2 is the structural representation of the first switch in boiler combustion optimization communication control system of the present invention;
Fig. 3 is the structural representation of the second switch in boiler combustion optimization communication control system of the present invention;
Fig. 4 is the schematic network structure of a kind of specific embodiment of boiler combustion optimization communication control system of the present invention.
Embodiment
Refer to Fig. 1, Fig. 1 is the structural representation of boiler combustion optimization communication control system of the present invention.
Described boiler combustion optimization communication control system, comprises the first industrial computer 10, AO data acquisition unit 20, AI data acquisition unit 30 and the second industrial computer 40;
Described the first industrial computer 10 connects described AO data acquisition unit 20, for obtaining boiler combustion optimization information from supervisory information system, described boiler combustion optimization information is converted to the physical signalling that AO data acquisition unit 20 gathers, and transfers to described AO data acquisition unit 20;
Described AO data acquisition unit 20 is connected with described AI data acquisition unit 30 by hardware connection, for described physical signalling is transferred to described AI data acquisition unit 30 by described hardware connection;
Described AI data acquisition unit 30 also connects described the second industrial computer 40, for described physical signalling being transferred to described the second industrial computer 40;
Described the second industrial computer 40 is for being converted to described physical signalling described boiler combustion optimization information, according to the instruction of described boiler combustion optimization Information generation combustion control, and by serial communication mode by described combustion control command to dcs.
Wherein, described the first industrial computer can be connected by the first switch with AO data acquisition unit; Described the second industrial computer can be connected by the second switch with AI data acquisition unit.Described the first switch and described the second switch need to be supported physical signalling transmission.
In boiler combustion optimization communication control system of the present invention, by described the first industrial computer by supervisory information system (Supervisory Information System, SIS) boiler combustion optimization information is converted to the discernible physical signalling of AO data acquisition unit, AO data acquisition unit is communicated by letter with the AI data acquisition unit of DCS system end by hardware connection, realizes the physical isolation between SIS system and DCS system.Described boiler combustion optimization information is transferred to described the second industrial computer with the form of physical signalling, described the second industrial computer carries out computing to described boiler combustion optimization information, generate combustion control instruction, then transfer to dcs (Distributed Control System, the DCS) control of burning by serial ports.Hardwire is most basic data mode, it links up signal measuring point, data line, connection terminal, data acquisition fastener and data acquisition unit by certain way, represent data by the current signal of 4～20mA, it is a kind of pure physical signalling, can mask by means of improper information such as virus, wooden horse and the abnormal datas of Internet communication, guarantee that the security of DCS system is unaffected.Serial communication (RS232/RS485) mode has improves verification scheme (LRC verification or CRC check), whether the data that it can relatively send are consistent with the data that receive, if inconsistent, can not accept these data, further guarantee the security of data communication.
Refer to Fig. 2, Fig. 2 is the structural representation of the first industrial computer in boiler combustion optimization communication control system of the present invention.
Wherein, described the first industrial computer comprises data read module 11, an OPC client 12 and the first opc server 13;
Described data read module 11 is accessed described supervisory information system by the api function of the database interface of described supervisory information system, reads boiler combustion optimization information from described supervisory information system;
A described OPC client 12 is communicated by letter with described the first opc server 13, by extremely described the first opc server 13 of described boiler combustion optimization communication;
Described boiler combustion optimization information is converted to voltage or the current signal that described AO data acquisition unit 20 can be identified by described the first opc server 13, then by described voltage or extremely described AO data acquisition unit 20 of current signal transfer.
Described AO data acquisition unit 20 transfers to described AI data acquisition unit 30 by described voltage or current signal by described hardware connection.
By a described OPC client 12 and the first opc server 13, with OPC(OLE for Process Control, for the OLE of process control) communication mode of agreement boiler combustion optimization information that the database of described supervisory information system is preserved is converted to the physical signalling such as voltage or electric current, thereby can, by the hardware connection signal transmission between described AO data acquisition unit 20 and described AI data acquisition unit 30, realize the physical isolation between described SIS system and DCS system.
Described AI data acquisition unit 30 is converted to described voltage or current signal after boiler combustion optimization information again, by extremely described the second industrial computer 40 of described boiler combustion optimization communication.
Refer to Fig. 3, Fig. 3 is the structural representation of the second industrial computer in boiler combustion optimization communication control system of the present invention.
Described the second industrial computer 40 comprises: the second opc server 41, the 2nd OPC client 42 and combustion optimizing system 43;
Described the second opc server 41 receives the boiler combustion optimization information that described AI data acquisition unit 30 transmits;
Described combustion optimizing system 43 is accessed described the second opc server 41 by described the 2nd OPC client 42, obtain described boiler combustion optimization information, and carry out design and the computing of burning optimization strategy according to described boiler combustion optimization information, obtain burning optimization instruction, and pass through serial communication mode by extremely described dcs of described burning optimization command.
Obtain and change described boiler combustion optimization information by described the second opc server 41, described combustion optimizing system 43 is accessed described the second opc server 41 by described the 2nd OPC client 42, obtain described boiler combustion optimization information, thereby generate steering order, dcs is controlled.Described combustion optimizing system 43 is exported described burning optimization instruction to dcs by serial communication mode, because having, serial communication (RS232/RS485) mode improves verification scheme, whether the data that can relatively send are consistent with the data that receive, if inconsistent, can not accept these data, further guarantee the security of data communication.
Wherein, described boiler combustion optimization information comprises boiler integrated performance index information.Can accurately learn boiler combustion ruuning situation according to described boiler integrated performance index information, then generate corresponding burning optimization instruction, realize the control of boiler combustion optimization communication thereby carry out instruction by dcs.
In a kind of preferred implementation, described boiler combustion optimization communication control system comprises two described the first industrial computers 10, and two described the first industrial computers 10 adopt the mode of double-clicking redundancy running to move; And, comprise two described the second industrial computers 40, and two described the second industrial computers 40 adopt the mode of double-clicking redundancy running to move.
By adopting the mode of two industrial computer redundancy runnings, can guarantee the normal operation of another industrial computer in the time of an industrial computer malfunction and failure, meet security requirement.
Illustrate with a specific embodiment below, refer to Fig. 4, Fig. 4 is the structural representation of a specific embodiment of boiler combustion optimization communication control system of the present invention.
Boiler integrated performance index information in certain power plant is kept in the middle of the outstanding database of wheat of SIS system, the data in the middle of SIS system is sent in the middle of DCS system, need to take perfect safety prevention measure.Therefore, adopt control system communication network as shown in Figure 4 to build boiler combustion optimization communication control system.
First adopt at the first industrial computer A/B(the mode of double-clicking redundancy running) in the middle of, the data read module that can read the central historical data of the outstanding database of wheat visits the data in the middle of database by the api function that calls the outstanding database interface of wheat, and convert historical data to real time data, in the middle of described the first industrial computer A/B, OPC Server (opc server, the OPC Server that adopts data acquisition unit to carry) and OPC Client (OPC client) have also been installed here simultaneously.
The data communications context occurring in the middle of described the first industrial computer A/B is as follows: first have access to the historical data in the middle of the outstanding database of wheat by SIS database data read module, then convert real time data to, then these data are carried out communication by OPC Client and OPC Server, these real time datas are sent in the middle of OPCServer, utilize the OPC Server can be to analog output (Analog Output in the middle of AO data acquisition unit, AO) module is carried out communication, converts these real time datas to voltage or current signal in the middle of AO analog quantity fastener.So far, the historical data in the middle of SIS system data successful conversion become the pure physical signalling such as electric current or voltage in the middle of AO fastener.
Next, by the AO fastener above AO data acquisition unit and analog input (Analog Input, AI) the AI fastener above data data acquisition unit adopts hard wired mode to couple together, and the current signal of AO fastener output 4～20mA is to AI fastener, and AO signal is converted to AI signal.Be converted in the process of AI signal at AO signal, completed the physical isolation work of the data that SIS system is sent.
Then, these AI signals are sent to the second industrial computer C/D(and adopt the mode of double-clicking redundancy running) in the middle of, the data communications context occurring in the middle of the second industrial computer C/D is as follows:
First by obtaining the data message in the middle of AI fastener with the supporting OPC Server of AI data acquisition unit, then combustion optimizing system is by the data in the middle of OPC Client access OPC Server, for design and the computing of burning optimization strategy.After combustion optimizing system generates burning optimization instruction, mode by serial communication (RS232/485) is transported to data in the middle of DCS system, serial port has and improves verification scheme, can mask the abnormal data that does not meet this communication format, further guarantee the security of data communication.
In the middle of describing from above-mentioned flow process; can find that in SIS system, data have been passed through hardwire communication and the potential data filtering check protection measure of two kinds of communication modes of serial communication in the middle of the process that is sent to DCS system, can thoroughly delete the data hidden danger of impact safety in production such as transmitting wooden horse, virus and abnormal data potential in data.
The implementation process of described boiler combustion optimization communication control system in the time building is as follows: 1, all switches, industrial computer and collector are electrified; 2, according to the communication network topological diagram connected with network cable shown in Fig. 4, set IP address, build data dissemination network; 3, SIS advaInform SQL*Access, OPCServer, OPC Client and combustion optimizing system software are arranged in the middle of corresponding industrial computer, and set the central corresponding parameter of these softwares; 4, supply with according to the wiring standard of power plant's hardwire mode and data acquisition unit AI, the AO signal wiring diagram that manufacturer provides, AI fastener and AO fastener are coupled together, complete the physical isolation of data-signal; 6, carry out communication test, whether the signal that checking SIS database sends and the final signal of accepting of DCS can match each other, show the successful operation of this system if can match each other, otherwise just need to check each link of data transmission procedure.
The above embodiment has only expressed several embodiment of the present invention, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be as the criterion with claims.
Claims (8)
1. a boiler combustion optimization communication control system, is characterized in that, comprises the first industrial computer, AO data acquisition unit, AI data acquisition unit and the second industrial computer;
Described the first industrial computer connects described AO data acquisition unit, for obtain boiler combustion optimization information from supervisory information system, described boiler combustion optimization information is converted to the physical signalling that AO data acquisition unit gathers, and transfers to described AO data acquisition unit;
Described AO data acquisition unit is connected with described AI data acquisition unit by hardware connection, for described physical signalling is transferred to described AI data acquisition unit by described hardware connection;
Described AI data acquisition unit also connects described the second industrial computer, for described physical signalling being transferred to described the second industrial computer;
Described the second industrial computer is for being converted to described boiler combustion optimization information by described physical signalling, according to the instruction of described boiler combustion optimization Information generation combustion control, and by serial communication mode by described combustion control command to dcs.
2. boiler combustion optimization communication control system as claimed in claim 1, is characterized in that, described the first industrial computer comprises data read module, an OPC client and the first opc server;
Described data read module is accessed described supervisory information system by the api function of the database interface of described supervisory information system, reads boiler combustion optimization information from described supervisory information system;
A described OPC client is communicated by letter with described the first opc server, by extremely described the first opc server of described boiler combustion optimization communication;
Described boiler combustion optimization information is converted to voltage or the current signal that described AO data acquisition unit can be identified by described the first opc server, then by described voltage or extremely described AO data acquisition unit of current signal transfer.
3. boiler combustion optimization communication control system as claimed in claim 2, is characterized in that, described AO data acquisition unit transfers to described AI data acquisition unit by described voltage or current signal by described hardware connection.
4. boiler combustion optimization communication control system as claimed in claim 3, it is characterized in that, described AI data acquisition unit is converted to described voltage or current signal after boiler combustion optimization information again, by extremely described the second industrial computer of described boiler combustion optimization communication.
5. boiler combustion optimization communication control system as claimed in claim 4, is characterized in that, described the second industrial computer comprises: the second opc server, the 2nd OPC client and combustion optimizing system,
Described the second opc server receives the boiler combustion optimization information of described AI data acquisition unit transmission;
Described combustion optimizing system is by the second opc server described in described the 2nd OPC client-access, obtain described boiler combustion optimization information, and carry out design and the computing of burning optimization strategy according to described boiler combustion optimization information, obtain burning optimization instruction, and pass through serial communication mode by extremely described dcs of described burning optimization command.
6. the boiler combustion optimization communication control system as described in claim 1 to 5 any one, is characterized in that, comprises two described the first industrial computers, and two described the first industrial computers adopt the mode of double-clicking redundancy running to move; And, comprise two described the second industrial computers, and two described the second industrial computers adopt the mode of double-clicking redundancy running to move.
7. the boiler combustion optimization communication control system as described in claim 1 to 5 any one, is characterized in that, described the first industrial computer is connected by the first switch with AO data acquisition unit; Described the second industrial computer is connected by the second switch with AI data acquisition unit.
8. the boiler combustion optimization communication control system as described in claim 1 to 5 any one, is characterized in that, described boiler combustion optimization information comprises boiler integrated performance index information.
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| CN112130494A (en) * | 2020-09-22 | 2020-12-25 | 杭州坤法环保科技有限公司 | Automatic combustion optimization device based on external-hanging grate furnace |
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Address after: 510080 water Donggang 8, Dongfeng East Road, Yuexiu District, Guangzhou, Guangdong. Co-patentee after: HANGZHOU WENNENG TECHNOLOGY Co.,Ltd. Patentee after: ELECTRIC POWER RESEARCH INSTITUTE OF GUANGDONG POWER GRID Co.,Ltd. Co-patentee after: GUANGZHOU LRLND INDUSTRIAL TECH. Co.,Ltd. Co-patentee after: SHAJIAO C POWER STATION OF GUANGDONG YUDEAN GROUP Co.,Ltd. Address before: 510080 water Donggang 8, Dongfeng East Road, Yuexiu District, Guangzhou, Guangdong. Co-patentee before: HANGZHOU WENNENG TECHNOLOGY Co.,Ltd. Patentee before: ELECTRIC POWER RESEARCH INSTITUTE OF GUANGDONG POWER GRID Corp. Co-patentee before: GUANGZHOU LRLND INDUSTRIAL TECH. Co.,Ltd. Co-patentee before: SHAJIAO C POWER STATION OF GUANGDONG YUDEAN GROUP Co.,Ltd. |
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Address after: 510000 room 501-503, annex building, Huaye building, No.1-3, Chumo new street, Xihua Road, Yuexiu District, Guangzhou City, Guangdong Province Co-patentee after: HANGZHOU WENNENG TECHNOLOGY Co.,Ltd. Patentee after: GUANGDONG DIANKEYUAN ENERGY TECHNOLOGY Co.,Ltd. Co-patentee after: GUANGZHOU LRLND INDUSTRIAL TECH. Co.,Ltd. Co-patentee after: SHAJIAO C POWER STATION OF GUANGDONG YUDEAN GROUP Co.,Ltd. Address before: 510630, No. 146-150, No. fifth, Whampoa Avenue, Tianhe District, Guangdong, Guangzhou Co-patentee before: HANGZHOU WENNENG TECHNOLOGY Co.,Ltd. Patentee before: GUANGDONG DIANKEYUAN ENERGY TECHNOLOGY Co.,Ltd. Co-patentee before: GUANGZHOU LRLND INDUSTRIAL TECH. Co.,Ltd. Co-patentee before: SHAJIAO C POWER STATION OF GUANGDONG YUDEAN GROUP Co.,Ltd. |
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| TR01 | Transfer of patent right |
Effective date of registration: 20200506 Address after: 510000 room 501-503, annex building, Huaye building, No.1-3, Chumo new street, Xihua Road, Yuexiu District, Guangzhou City, Guangdong Province Co-patentee after: Shajiao C Power Plant of Guangdong Energy Group Co.,Ltd. Patentee after: GUANGDONG DIANKEYUAN ENERGY TECHNOLOGY Co.,Ltd. Co-patentee after: HANGZHOU WENNENG TECHNOLOGY Co.,Ltd. Address before: 510000 room 501-503, annex building, Huaye building, No.1-3, Chumo new street, Xihua Road, Yuexiu District, Guangzhou City, Guangdong Province Co-patentee before: HANGZHOU WENNENG TECHNOLOGY Co.,Ltd. Patentee before: GUANGDONG DIANKEYUAN ENERGY TECHNOLOGY Co.,Ltd. Co-patentee before: GUANGZHOU LRLND INDUSTRIAL TECH. Co.,Ltd. Co-patentee before: Shajiao C Power Plant of Guangdong Energy Group Co.,Ltd. |
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| CB03 | Change of inventor or designer information |
Inventor after: Shen Yueliang Inventor after: Tang Yijun Inventor after: Li Zhuangyang Inventor after: Huang Junfeng Inventor after: Su Lechun Inventor after: You Haihui Inventor after: Ma Zengyi Inventor before: Shen Yueliang Inventor before: Tang Yijun Inventor before: Li Zhuangyang Inventor before: Huang Junfeng Inventor before: Su Lechun Inventor before: You Haihui Inventor before: Ma Zengyi |
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Effective date of registration: 20200702 Address after: 510080 Dongfeng East Road, Dongfeng, Guangdong, Guangzhou, Zhejiang Province, No. 8 Co-patentee after: HANGZHOU WENNENG TECHNOLOGY Co.,Ltd. Patentee after: ELECTRIC POWER RESEARCH INSTITUTE OF GUANGDONG POWER GRID Co.,Ltd. Co-patentee after: Shajiao C Power Plant of Guangdong Energy Group Co.,Ltd. Address before: 510000 room 501-503, annex building, Huaye building, No.1-3, Chumo new street, Xihua Road, Yuexiu District, Guangzhou City, Guangdong Province Co-patentee before: Shajiao C Power Plant of Guangdong Energy Group Co.,Ltd. Patentee before: GUANGDONG DIANKEYUAN ENERGY TECHNOLOGY Co.,Ltd. Co-patentee before: HANGZHOU WENNENG TECHNOLOGY Co.,Ltd. |
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