CN103676848A - Factory control system and factory control method for gas and steam combined cycle sets - Google Patents
Factory control system and factory control method for gas and steam combined cycle sets Download PDFInfo
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- CN103676848A CN103676848A CN201310611310.2A CN201310611310A CN103676848A CN 103676848 A CN103676848 A CN 103676848A CN 201310611310 A CN201310611310 A CN 201310611310A CN 103676848 A CN103676848 A CN 103676848A
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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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/16—Combined cycle power plant [CCPP], or combined cycle gas turbine [CCGT]
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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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
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Abstract
The invention discloses a factory control system and a factory control method for gas and steam combined cycle sets. The factory control system comprises at least one unit set control device, an auxiliary facility control device and a master control device. Each unit set control device realizes a control effect by a distributed control system and comprises a gas turbine control device, a steam turbine control device, a waste heat boiler control device and a factory electric facility control device, various auxiliary facilities are controlled via a distributed control system of the auxiliary facility control device, and the unit set control devices are connected with the auxiliary facility control device by the master control device. The factory control system and the factory control method have the advantages that the engineering manufacturing cost can be greatly reduced, the automation level of the sets can be improved, and operating personnel training workloads and operating and maintenance workloads can be reduced.
Description
Technical field
The present invention relates to control system of power plant field, particularly a kind of combustion and steam Combined Cycle Unit full factory control system and method.
Background technology
Along with the adjustment of national energy policy and the further raising of energy-conserving and environment-protective requirement, large-scale combustion and steam Combined Cycle Unit is applied more and more at home.And the selection of combustion and steam Combined Cycle Unit Control System Software, hardware will directly affect the cost of whole engineering; Whether the structure of control system is reasonable, also will determine the level of control of unit, affects the operational effect of unit.
In prior art, the monoblock main building equipment of combustion and steam Combined Cycle Unit adopts distributed monitoring control system to control, and branch works adopts programmable logic controller (PLC) PLC to control, the electric electrical control management system ECMS that arranges.A plurality of coexistence of systems of full factory, software, hardware are of a great variety, and standby redundancy is of a great variety; A plurality of control system agreements are different, and extent of information sharing is not high each other; Operations staff need to be familiar with multiple hardwares, grasps the operation of multiple softwares, and training amount is large; Because multiple software and hardware coexists, the operations staff who needs is many, and operation maintenance workload is large.Thereby the variety of problems such as cause the full factory of combustion and steam Combined Cycle Unit control system complex structure, reliability is low, level of integrated system is low, maintenance and operation is difficult.
Summary of the invention
Based on this, for above-mentioned control system complex structure, the problem such as reliability is low, level of integrated system is low, maintenance and operation is difficult, the present invention proposes a kind of combustion and steam Combined Cycle Unit full factory control system and method.
The present invention proposes the full factory of a kind of combustion and steam Combined Cycle Unit control system, and its technical scheme is as follows:
The full factory of a kind of combustion and steam Combined Cycle Unit control system, comprise the unit control device that at least one adopts scattered control system to control, this unit control device comprises combustion machine control device in parallel, turbine control device, waste heat boiler control device and the electric plant control unit of station-service; Also comprise the various utility appliance control device of controlling by scattered control system, and the master control device of linkage unit machine set control device and utility appliance control device.
As combustion machine control device, turbine control device, waste heat boiler control device and the electric plant control unit of station-service etc., utilize the scattered control system with same hardware and software to connect to form unit control system the various control device under unit control device; By each control device under utility appliance control device, utilization has same hardware with unit control system and software scattered control system connects to form accessory control system; Unit control system and accessory control system are coupled together, and Bing Yong operator station carries out master control, thereby forms an integrated full factory control system.
Below its further technical scheme is described:
Preferably, also comprise unit control network and utility appliance control network, combustion machine control device, turbine control device, waste heat boiler control device and the electric plant control unit of station-service are connected in parallel on unit control network, and various utility appliance control device are connected in parallel on other utility appliance and control on network.Can form respectively relatively independent unit control system and accessory control system like this, for each monoblock arranges independent control system, the maintenance if this unit need to stop, just can not affect the normal operation of other units and system; The independent setting of accessory control system can make utility appliance not affect the operation of monoblock.
Preferably, unit control device is all connected with corresponding operator station, engineer station and historical station with utility appliance control device.For each unit control device and utility appliance control device attended operation person station, engineer station are can handled easily and maintenance, make to be independent of each other between unit unit, the service data of each system can be preserved in historical station.
Preferably, also comprise switch, and the public control device being connected by switch with at least one unit control device.By switch, public control device is connected with at least one unit control device, the operator station of a plurality of unit control devices can operate control to public control device, and it is convenient to control.
Preferably, utility appliance control device comprises public control device.Directly public control device and utility appliance control device are set together, utilize the operator station of utility appliance control device to operate control, do not affect unit control device.
Preferably, master control device comprises data server and operator station.Unit control system and accessory control system are connected on level of factory Control System NetWork, in the master control device being connected with level of factory Control System NetWork, setting operation person station can operate each monoblock of full factory, when the comparison in equipment of Dang Quan factory reliably and operating personnel's control ability is very strong, the operator station that can connect on level of factory Control System NetWork realizes the control to full plant, the quantity that reduces operating personnel, has improved automatization level; Real-time data base is set can be controlled on network and realize the function that operation optimization is instructed at level of factory, and the service data of real-time data base Ke Duiquan factory is carried out analytical calculation, and actual operation is instructed.
The present invention also proposes the full factory of a kind of combustion and steam Combined Cycle Unit control method, comprises the steps:
Combustion machine control device, turbine control device, waste heat boiler control device and electrical equipment control device in each unit control device respectively with monoblock in the electric equipment connection communication of combustion machine system, steam turbine system, afterheat boiler system and station-service; Each control device in utility appliance control device and corresponding each utility appliance connecting communication;
Each control device in unit control device is by scattered control system connecting communication, and each control device in utility appliance control device is by scattered control system connecting communication;
Each unit control device and utility appliance control device and master control device connecting communication.
Below its further technical scheme is described:
Preferably, unit control device and public control device connecting communication.The two can connect connecting communication by switchboard direct, also can carry out indirect communication by master control device.
Preferably, unit control device and utility appliance control device all with corresponding operator station, engineer station and historical station connecting communication.
Preferably, unit control device and utility appliance control device all with data server and the operator station connecting communication of master control device.
The present invention has advantages of following outstanding:
1, full factory Control System Software, hardware unification, adopt general configuration tool and diagnostic tool, reduced the workload of repair and maintenance, can simplify the training to operation, maintainer, reduced training amount;
2, full factory Control System Software, hardware are unified, and have reduced the kind of standby redundancy, have reduced control system cost;
3, reduce hardwire and the communication interface of each system part, simplified system architecture.For example unit is in the implementation process of start and stop function, and because a lot of logics and coherent signal could finally be determined between limber up period, and now control system hardware and cable have all installed, increase hardwire signal very difficult.Adopt after integrated control system, information shared resources, this class problem just can be well solved;
4, improved whole factory automation level, some monitoring of full factory, reduces operations staff, reduces operation and maintenance cost.Universal operator station picture integrating full plant information, quantity of information is abundant, in the situation that logic automaticity is higher, by 1 operator, can monitor whole unit, can greatly reduce unit operation personnel's quantity;
5, full factory's warning message and SOE information can centralized displaying, and the time tag of all opertaing devices is consistent, when there is accident, can call quickly and accurately and report to the police and SOE data are carried out crash analysis.
Accompanying drawing explanation
Fig. 1 is the full factory of combustion and steam Combined Cycle Unit control system schematic diagram in the embodiment of the present invention;
Fig. 2 is the full factory of combustion and steam Combined Cycle Unit control system schematic diagram in the embodiment of the present invention.
Description of reference numerals:
100-unit control system, 110-monoblock, 120-unit control device, 130-unit control network, (140,240)-operator station, engineer station and historical station, 200-accessory control system, 210-utility appliance, 220-utility appliance control device, 230-utility appliance is controlled network, 250-common control system, 252-shared device, 254-public control device, 256-public control network, 258-switch, 300-level of factory Control System NetWork, 400-master control device, 410-data server, 420-operator station.
Embodiment
Below in conjunction with accompanying drawing, embodiments of the invention are elaborated.
As shown in Figure 1 and Figure 2, the present invention proposes the full factory of a kind of combustion and steam Combined Cycle Unit control system, comprise the unit control device 120 that at least one adopts scattered control system to control, this unit control device 120 comprises combustion machine control device in parallel, turbine control device, waste heat boiler control device and the electric plant control unit of station-service; Also comprise the various utility appliance control device 220 of controlling by scattered control system, and the master control device 400 of linkage unit machine set control device 120 and utility appliance control device 220.
As combustion machine control device, turbine control device, waste heat boiler control device and the electric plant control unit of station-service etc., utilize the scattered control system with same hardware and software to connect to form unit control system 100 the various control device under unit control device 120; By each control device under utility appliance control device 220, utilization connects to form accessory control system 200 with the scattered control system that unit control system 100 has same hardware and software; Unit control system 100 and accessory control system 200 are coupled together, and carry out master control with the operator station 420 of master control device 400, thereby form an integrated full factory control system.
This control system also comprises unit control network 130 and utility appliance control network 230(can be cable or twisted-pair feeder or optical fiber etc. are connected to form), combustion machine control device, turbine control device, waste heat boiler control device and the electric plant control unit of station-service in unit control device 120 etc. are connected in parallel on unit control network 130, form relatively independent unit control system 100; Various utility appliance control device 220 are connected in parallel on other utility appliance and control on network 230, form relatively independent accessory control system 200.Each monoblock arranges independent DCS control system, and the maintenance if this unit need to stop just can not affect the normal operation of other units and system; The independent setting of accessory control system 200 can make utility appliance 210 not affect the operation of monoblock 110.
In this control system, turbine control device comprises again Turbo-generator Set control device, steam turbine digital electro-hydraulic control device, steam turbine engine off control system; and boiler circuit control device, bypath system control device, vacuum system control device etc.; these control device all adopt distributed monitoring control system to control the various corresponding equipment of monoblock 110, and each control device is by adopting identical DCS hardware to realize control.Combustion machine control device is generally carried by combustion machine system, as identical with monoblock DCS in its hardware, just can directly form integral system, as different, can pass through communication interface (as OPC communication interface) and be connected with monoblock DCS.Unit control device 120 also comprises circulating cooling water controller, recirculated water medicine adding controller, and the electric plant control unit of station-service etc.Above-mentioned various control device is connected on unit control network 130 by DCS, forming unit unit control system 100.The electric plant control unit of station-service is here the control system arranging separately in conventional art, directly included in now in unit control device 120, because the electrical equipment of combustion and steam Combined Cycle Unit is less, the electric plant control unit of station-service is set separately and wastes very much and make full factory control system complex structure, can be better in unit control device so include in, only need to be when design cell machine set control device 120, the equipment such as reserved good relevant I/O point and controller.
In like manner, utility appliance control device 220 comprises water plant control device, water purification station control device, Boiler water Feeding System control device, waste water processing station control device, air compressor control device, hydrogen generation station control device, starts the equal controllers such as boiler controlling device, they are controlled on network 230 in utility appliance by DCS parallel join, form accessory control system 200.Each control device in utility appliance control device 220 adopts software, the hardware identical with unit control device 120, controls, to facilitate the control system that forms total plant solution to facilitate them to unify to connect.
In unit control system 100 and accessory control system 200, unit control device 120 is connected with each self-corresponding operator station, engineer station and historical station (140,240) respectively with utility appliance control device 220.For each unit control device 120 and utility appliance control device 220 setting operation persons stations, engineer station are can handled easily and maintenance, make to be independent of each other between unit unit, the service data that each system can be preserved in historical station is set.
In addition, in one case, as shown in Figure 1, this control system also comprises switch 258, and the public control device 254 being connected by switch 258 with at least one unit control device 120, this public control device 254 is connected with shared device 252, and the various control device in public control device 254 are connected on public control network 256, forms common control system 250.By switch 258, utility device control system 250 is connected with at least one unit control device 120, can utilizes the operator station of a plurality of unit control devices 120 to operate control to public control device 254, it is independent convenient to control; In another case, as shown in Figure 2, utility appliance control device 220 comprises public control device 254.Directly public control device 254 and utility appliance control device 220 are set together, utilize the operator station of utility appliance control device 220 to operate control, do not affect the normal operation of unit control device 120, also can simplified control system, reduce software and hardware.Public control device 254 comprises voltage regulating station control device, stove water medicine adding controller, air conditioning control device, public electrical control gear etc., they or by DCS, be parallel to public control network 256 and form independently common control system 250, or be set together and be parallel to utility appliance and control a part that forms accessory control system 200 on network 230 with utility appliance control device 220.
The present invention also proposes the full factory of a kind of combustion and steam Combined Cycle Unit control method, comprises the steps:
Combustion machine control device, turbine control device, waste heat boiler control device and electrical equipment control device in unit control device 120 respectively with monoblock 110 in the electric equipment connection communication of combustion machine system, steam turbine system, afterheat boiler system and station-service; Each control device in utility appliance control device 220 and corresponding each utility appliance 210 connecting communications.Each control device and corresponding controlled device connecting communication, go out detection data transmission in real time and control command transmission can be got off;
Each control device in unit control device 120 is by scattered control system connecting communication, and each control device in utility appliance control device 220 is by scattered control system connecting communication.The control device of each equipment in monoblock 110 is connected on unit control network 130 and is formed a unit control system 100 by DCS, and unit control device 120 is to unit control network 130 receiving control informations and send monitor data; The control device of each utility appliance 210 is also connected on utility appliance control network 230 and is formed an accessory control system 200 by DCS, and each utility appliance control device 220 is controlled network 230 with utility appliance and mutually transmitted data and information.Unit control device 120 and utility appliance control device 220 are all by controlling network and corresponding operator station, engineer station and historical station (140,240) connecting communication, operator station, engineer station by separately carry out policer operation to each control device, record the service data of each control device by history station separately.
Wherein, unit control device 120 and public control device 254 connecting communications.When public control device 254 independently arranges, the two can pass through the direct connecting communication of mutual machine 258; When public control device 254 is arranged in utility appliance control device 220, also can to it, by level of factory Control System NetWork 300, carry out junctional intercellular communication by master control device 400.
Unit machine set control device 120 and utility appliance control device 220 and master control device 400 connecting communications.Unit machine set control device 120 and utility appliance control device 220 all the control network by are separately connected to level of factory Control System NetWork 300, then by level of factory Control System NetWork 300 data server 410He operator station 420 connecting communications with master control device 400.Unit unit control system 100 and accessory control system 200 are connected on level of factory Control System NetWork 300 by DCS, make unit control device 120 and utility appliance control device 220 and level of factory Control System NetWork 300 connecting communications, then monitor by the master control device 400Dui Ciquan factory control system with level of factory Control System NetWork 300 connecting communications.The service data that data server 410 is collected each control device is carried out analytical calculation, and actual motion state is instructed.
The present invention, by software, the hardware of unified full factory control system, has reduced the workload of repair and maintenance, has reduced training amount; Reduce the kind of standby redundancy, reduced control system cost; Reduce hardwire and the communication interface of each system part, simplified system architecture; Improved whole factory automation level, some monitoring of full factory, reduces operations staff, reduces operation and maintenance cost; Shi Quan factory warning message and SOE information can centralized displaying, are convenient to carry out crash analysis.
The above embodiment has only expressed the specific 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.
Claims (10)
1. the full factory of a combustion and steam Combined Cycle Unit control system, it is characterized in that, comprise the unit control device that at least one adopts scattered control system to control, described unit control device comprises combustion machine control device, turbine control device, waste heat boiler control device and the electric plant control unit of station-service; Also comprise the various utility appliance control device of controlling by scattered control system, and the master control device that connects described unit control device and utility appliance control device.
2. the full factory of combustion and steam Combined Cycle Unit according to claim 1 control system, it is characterized in that, also comprise unit control network and utility appliance control network, described combustion machine control device, turbine control device and the electric plant control unit of station-service are connected in parallel on unit control network, and various described utility appliance control device are connected in parallel on other utility appliance and control on network.
3. the full factory of combustion and steam Combined Cycle Unit according to claim 1 control system, is characterized in that, described unit control device is all connected with corresponding operator station, engineer station and historical station with utility appliance control device.
4. the full factory of combustion and steam Combined Cycle Unit according to claim 3 control system, is characterized in that, also comprises switch, and the public control device being connected by switch with unit control device described at least one.
5. the full factory of combustion and steam Combined Cycle Unit according to claim 3 control system, is characterized in that, described utility appliance control device comprises public control device.
6. according to the full factory of the combustion and steam Combined Cycle Unit control system described in claim 1-5 any one, it is characterized in that, described master control device comprises data server and operator station.
7. the full factory of a combustion and steam Combined Cycle Unit control method, is characterized in that, comprises the steps:
Combustion machine control device, turbine control device, waste heat boiler control device and electrical equipment control device in unit control device respectively with monoblock in the electric equipment connection communication of combustion machine system, steam turbine system, afterheat boiler system and station-service; Each control device in utility appliance control device and corresponding each utility appliance connecting communication;
Each control device in unit control device is by scattered control system connecting communication, and each control device in utility appliance control device is by scattered control system connecting communication;
Each unit control device and utility appliance control device and master control device connecting communication.
8. the full factory of combustion and steam Combined Cycle Unit according to claim 7 control method, is characterized in that, described unit control device and public control device connecting communication.
9. the full factory of combustion and steam Combined Cycle Unit according to claim 7 control method, is characterized in that, described unit control device and utility appliance control device all with corresponding operator station, engineer station and historical station connecting communication.
10. the full factory of combustion and steam Combined Cycle Unit according to claim 7 control method, is characterized in that, described unit control device and utility appliance control device all with data server and the operator station connecting communication of master control device.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107102545A (en) * | 2017-05-03 | 2017-08-29 | 浙江大学 | A kind of load optimal distribution of Combined Cycle Unit stopping process and remaining tolerance modified computing method and system |
| CN110825050A (en) * | 2019-11-14 | 2020-02-21 | 南京国电南自维美德自动化有限公司 | Automatic start-stop control system and control method for F-grade gas-steam combined cycle system |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107102545A (en) * | 2017-05-03 | 2017-08-29 | 浙江大学 | A kind of load optimal distribution of Combined Cycle Unit stopping process and remaining tolerance modified computing method and system |
| CN107102545B (en) * | 2017-05-03 | 2021-03-23 | 浙江大学 | Load optimization distribution and residual gas amount correction calculation method and system for shutdown process of combined cycle unit |
| CN110825050A (en) * | 2019-11-14 | 2020-02-21 | 南京国电南自维美德自动化有限公司 | Automatic start-stop control system and control method for F-grade gas-steam combined cycle system |
| CN110825050B (en) * | 2019-11-14 | 2021-03-02 | 南京国电南自维美德自动化有限公司 | Automatic start-stop control system and control method for F-grade gas-steam combined cycle system |
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