CN203101994U - Automatic plant-level load and voltage integrated control system - Google Patents
Automatic plant-level load and voltage integrated control system Download PDFInfo
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- CN203101994U CN203101994U CN201320145678XU CN201320145678U CN203101994U CN 203101994 U CN203101994 U CN 203101994U CN 201320145678X U CN201320145678X U CN 201320145678XU CN 201320145678 U CN201320145678 U CN 201320145678U CN 203101994 U CN203101994 U CN 203101994U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Abstract
The utility model discloses an automatic plant-level load and voltage integrated control system, belonging to the technical field of the power generation automatic control of a thermal plant. The integrated automatic control system consists of a data collecting part, a monitoring part, a control part and a communication network. The system can simultaneously carry out the optimized allocation on a plant-level load and the automatic control on a voltage. The system can be seamlessly embedded to an original dispersion control system and a magnetic adjusting system of a thermal power plant, dispatches a command and the information uploaded to a dispatching center and carries out the data interaction through a remote terminal and an input/output module; and a data collection and optimized allocation control program is realized through a plurality of input/output modules and a set of programmable logic controllers which are mutually redundant. The power supply, communication and controller of the system are configured in a dual-redundancy way. The plant load control and the automatic control of the plant-level voltage are integrated by the integrated control system, so that the field, the investment, the installation and debugging time and the operation and maintenance expense can be saved. A control strategy is simple and easy to understand, the online calculated quantity is small, good economical performance can be maintained, and the requirements of different working conditions can be met.
Description
Technical field
The utility model belongs to cogeneration plant generating automatic control technology field.Be particularly related to a kind of level of factory load and the integrated automatic control system of voltage.
Background technology
At present, (be called for short: LDC) (be called for short: AVC) be the system of two cover independent operatings, every cover system all has independently data acquisition system (DAS), communication system, industrial control computer and monitoring and control configuration software to level of factory load distribution system of thermal power plant with level of factory voltage automatic control system.Though LDC is different with the AVC function, but the data of gathering have very most of overlapping, as analog quantity numerical value such as each set generator end active power of thermal power plant, reactive power, busbar voltages, switching value such as set state, control system switching and for example, this two cover system all need be accepted the dispatching of power netwoks instruction simultaneously.Obviously, two cover independent operating LDC and AVC have caused the repeated configuration of equipment, have wasted resource, have increased investment; Two overlap independently system simultaneously, have also increased the cost of operation maintenance in the future, so the present invention designs a kind of thermal power plant level of factory load and the integrated automatic control system of voltage (is called for short: AGVC).
The utility model content
The purpose of this utility model is the deficiency at existing LDC and AVC hardware repeated configuration and the existence of load optimized distribution algorithm, a kind of level of factory load and the integrated automatic control system of voltage are proposed, it is characterized in that this integrated automatic control system is made up of data acquisition, supervision, control and communication network four parts; System architecture is:
Described control section is made up of first controller 1, second controller 2 of mutual redundancy, is the PLC programmable logic controller (PLC).
Described data acquisition system (DAS) is made up of first input/output module 7, second input/output module 8, the 3rd input/output module 9 and third party's communication module 10, all comprise A/D (mould/number) conversion and D/A (D/A) conversion, the analog quantity of inputting modular unit collection is converted to digital quantity, output module output digital quantity; Above-mentioned input/output module all has the light-coupled isolation protection.
Described communication network is made up of two switches and netting twine, optical fiber, and wherein switch is light mouth, electricity mouthful mixing; When apart from less than 75 meters, make electricity consumption mouth and netting twine; Greater than 75 meters, then use optical fiber and Guang Kou.
Described monitor portion is made of remote terminal, industrial computer and the monitoring and control configuration software that is installed on the industrial computer.
2 outputs of described second opc server are connected with printer 11.
Described first opc server 1, second opc server 2 be redundancy mutually.
The described first netting twine group 1, the second netting twine group 2 be redundancy mutually.
Described first switch 1, second switch 2 be redundancy mutually.
Described third party's communication module is the communications protocol modular converter, comprises A/D mould/number conversion and D/A D/A switch, and the analog quantity of inputting modular unit collection is converted to digital quantity, output module output digital quantity; To use field bus protocol always and be converted to CAN bus protocol in the rack, and support MODBUS, common field bus communication agreement such as PROFIBUS is to improve the compatibility of AGVC system.
The beneficial effects of the utility model are that this integral control system can be finished Automatic Optimal distribution of level of factory load and level of factory voltage automatic control function simultaneously, have realized the integrated control of level of factory load/voltage, have saved investment and maintenance cost.
Description of drawings
Fig. 1 is the integrated automatic control system structured flowchart of level of factory load/voltage.
Fig. 2 is the switch board structural representation.
Embodiment
The utility model proposes the integrated automatic control system of a kind of thermal power plant's level of factory load/voltage.The present invention will be further described below in conjunction with drawings and Examples.
In Fig. 1 Fig. 2, this integrated automatic control system is made up of data acquisition, supervision, control and communication network four parts; System architecture is:
The first mutually redundant opc server 1 and second opc server 2, the first unit OPC client-N unit OPC client are connected (N be full factory put into operation unit sum) by the first netting twine group 1, the second netting twine group 2 with first switch 1, second switches 2 respectively, and second opc server 2 is exported and is connected with printer 11.In switch board 13, first controller, 1 second controller 2 links to each other with first switch 1, second switch 2 by the first netting twine group 1, the second netting twine group 2 respectively, first controller 1, second controller 2 are connected with a CAN bus 1, the 2nd CAN bus 2 respectively, interconnect by redundancy communication cable 3 between first controller 1 and second controller 2; First kind input/output module 7, the second class input/output module 8, the 3rd class input/ output module 9 and 10 whiles of third party's communication module also connect on a CAN bus 1, the 2nd CAN bus 2.In switch board 13 bottoms, two redundant each other cover power modules are installed, voltage table all is installed on each power module, reometer and indicating operating status the LED display lamp; Two cover power module outlets are opened to correlation module via sky by backward dioded and are powered.First kind input/output module 7 is connected with remote terminal 6 by hardwire respectively with the second class input/output module 8, and remote terminal 6 connects by communication cable 4 grid dispatching center.Remote terminal 6 transmits unit information (104 stipulations) by communication cable 4 to grid dispatching center 12, also accepts dispatch command simultaneously.In order to guarantee the reliability of dispatch command and teletransmission information, remote terminal 6 carries out data interaction by hardwire 5 and AGVC system.
Described control section is made up of first controller 1, second controller 2 of mutual redundancy, is the PLC programmable logic controller (PLC), realizes computing, logic control and communication function; Being responsible for carrying out the optimized distribution algorithm, is the control core module.
Described data acquisition system (DAS) is made up of first kind input/output module 7, the second class input/output module 8, the 3rd class input/output module 9 and third party's communication module 10, all comprise A/D(mould/number) conversion and D/A(D/A) conversion, the analog quantity of inputting modular unit collection is converted to digital quantity, output module output digital quantity; Above-mentioned input/output module all has the light-coupled isolation protection, and each module connects a CAN bus 1, the 2nd CAN bus 2 of mutual redundancy respectively, communicates by letter with controller by the CAN bus.
Described communication network is made up of with redundant mutually netting twine, optical fiber two redundant mutually switches, and communications protocol is an ICP/IP protocol, and wherein switch is light mouth, electricity mouthful mixing; When apart from less than 75 meters, make electricity consumption mouth and netting twine; Greater than 75 meters, then use optical fiber and Guang Kou.
Described monitor portion is made of remote terminal, control machine and the monitoring and control configuration software that is installed on the industrial computer, monitoring software comprises Man Machine Interface, the operator is by Man Machine Interface on-site supervision operating mode and send steering order, the personnel that configuration software allows to have certain authority check the state of variable in the controller, revise dress Logical Configuration down, steering logic is debugged.
When there is the non-windows system monitoring software in full factory, in the time of can't using the OPC communication modes, can carry out data interaction with the AGVC system by the field bus protocol (MODBUS, ProfiBUS etc.) of third party's communication module 10 supports.Third party's communication module has improved the compatibility of AGVC system.
The utility model has been saved the place with LDC and the AVC chemical control system system that combines together, investment, and Installation and Debugging time and operation and maintenance expenses are used.The level of factory load is adjusted optimized distribution simultaneously, and level of factory voltage automatic control system can be to total length active power, and the reactive power on-line optimization distributes.This control strategy is easily understood, and on-line calculation is little, has kept the total length better economic, can satisfy the requirement of various working.
Claims (10)
1. a level of factory is loaded and the integrated automatic control system of voltage, it is characterized in that this integrated automatic control system is made up of data acquisition, supervision, control and communication network four parts; System architecture is:
First opc server (1), second opc server (2), the first unit OPC client-N unit OPC client connect with first switch (1), second switch (2) by the first netting twine group (1), the second netting twine group (2) respectively; First controller (1) second controller (2) links to each other with first switch (1), second switch (2) by the first netting twine group (1), the second netting twine group (2) respectively, first controller (1), second controller (2) are connected with a CAN bus (1), the 2nd CAN bus (2) respectively, interconnect by communication cable (3) between first controller (1) and second controller (2); First kind input/output module (7), the second class input/output module (8), the 3rd class input/output module (9) and third party's communication module (10) while also connect on a CAN bus (1), the 2nd CAN bus (2); First input/output module (7) is connected with remote terminal (6) by data line (5) respectively with second input/output module (8), and remote terminal (6) connects by communication cable (4) grid dispatching center (12).
2. according to described a kind of level of factory load of claim 1 and the integrated automatic control system of voltage, it is characterized in that, described control section is made up of first controller (1), second controller (2) of mutual redundancy, be the PLC programmable logic controller (PLC), realize computing, logic control and communication function.
3. according to described a kind of level of factory load of claim 1 and the integrated automatic control system of voltage, it is characterized in that, described data acquisition system (DAS) is made up of first kind input/output module (7), the second class input/output module (8), the 3rd class input/output module (9) and third party's communication module (10), all comprise A/D(mould/number) conversion and D/A(D/A) conversion, the analog quantity of inputting modular unit collection is converted to digital quantity, output module output digital quantity; Above-mentioned input/output module all has the light-coupled isolation protection.
4. according to described a kind of level of factory load of claim 1 and the integrated automatic control system of voltage, it is characterized in that described communication network is made up of two switches and netting twine, optical fiber, communications protocol is an ICP/IP protocol, and wherein switch is light mouth, electricity mouthful mixing; When apart from less than 75 meters, make electricity consumption mouth and netting twine; Greater than 75 meters, then use optical fiber and Guang Kou.
5. according to described a kind of level of factory load of claim 1 and the integrated automatic control system of voltage, it is characterized in that described monitor portion is made of remote terminal, control machine and the monitoring and control configuration software that is installed on the industrial computer.
6. according to described a kind of level of factory load of claim 1 and the integrated automatic control system of voltage, it is characterized in that described second opc server (2) output is connected with printer (11).
7. according to described a kind of level of factory load of claim 1 and the integrated automatic control system of voltage, it is characterized in that described first opc server (1), second opc server (2) are redundant mutually.
8. according to described a kind of level of factory load of claim 1 and the integrated automatic control system of voltage, it is characterized in that described first netting twine (1), second netting twine (2) are redundant mutually.
9. according to described a kind of level of factory load of claim 1 and the integrated automatic control system of voltage, it is characterized in that described first switch (1), second switch (2) are redundant mutually.
10. according to described a kind of level of factory load of claim 1 and the integrated automatic control system of voltage, it is characterized in that, described third party's communication module is the communications protocol modular converter, comprise A/D mould/number conversion and D/A D/A switch, the analog quantity of inputting modular unit collection is converted to digital quantity, output module output digital quantity; To use field bus protocol always and be converted to CAN bus protocol in the rack, to improve the compatibility of AGVC system.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320145678XU CN203101994U (en) | 2013-03-27 | 2013-03-27 | Automatic plant-level load and voltage integrated control system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201320145678XU CN203101994U (en) | 2013-03-27 | 2013-03-27 | Automatic plant-level load and voltage integrated control system |
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| CN203101994U true CN203101994U (en) | 2013-07-31 |
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| CN201320145678XU Expired - Lifetime CN203101994U (en) | 2013-03-27 | 2013-03-27 | Automatic plant-level load and voltage integrated control system |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104122869A (en) * | 2014-07-25 | 2014-10-29 | 华北电力大学（保定） | Integrated external connection optimization control system and method |
| CN104656638A (en) * | 2015-02-13 | 2015-05-27 | 西安热工研究院有限公司 | Real-time diagnosis device and method for thermal power plant equipment cavitation |
| CN106200569A (en) * | 2015-05-26 | 2016-12-07 | 株式会社日立制作所 | Plant monitoring control system and access management method |
| CN107395771A (en) * | 2017-09-07 | 2017-11-24 | 中海油气(泰州)石化有限公司 | Full redundancy balancing the load production process data acquisition system |
| CN107817758A (en) * | 2017-11-08 | 2018-03-20 | 江苏驷博电气有限公司 | A kind of programmable logic control system |
| CN109739280A (en) * | 2019-01-08 | 2019-05-10 | 北京首航艾启威节能技术股份有限公司 | A kind of Novel electric tracing control system and method |
-
2013
- 2013-03-27 CN CN201320145678XU patent/CN203101994U/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104122869A (en) * | 2014-07-25 | 2014-10-29 | 华北电力大学（保定） | Integrated external connection optimization control system and method |
| CN104656638A (en) * | 2015-02-13 | 2015-05-27 | 西安热工研究院有限公司 | Real-time diagnosis device and method for thermal power plant equipment cavitation |
| CN104656638B (en) * | 2015-02-13 | 2017-10-27 | 西安热工研究院有限公司 | A kind of Power Plant Equipment cavitation erosion real time diagnostic device and method |
| CN106200569A (en) * | 2015-05-26 | 2016-12-07 | 株式会社日立制作所 | Plant monitoring control system and access management method |
| CN106200569B (en) * | 2015-05-26 | 2019-03-15 | 株式会社日立制作所 | Plant monitoring control system and access management method |
| CN107395771A (en) * | 2017-09-07 | 2017-11-24 | 中海油气(泰州)石化有限公司 | Full redundancy balancing the load production process data acquisition system |
| CN107817758A (en) * | 2017-11-08 | 2018-03-20 | 江苏驷博电气有限公司 | A kind of programmable logic control system |
| CN109739280A (en) * | 2019-01-08 | 2019-05-10 | 北京首航艾启威节能技术股份有限公司 | A kind of Novel electric tracing control system and method |
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Granted publication date: 20130731 |
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