CN204189015U - Unit is from start-stop control system - Google Patents
Unit is from start-stop control system Download PDFInfo
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- CN204189015U CN204189015U CN201420702619.2U CN201420702619U CN204189015U CN 204189015 U CN204189015 U CN 204189015U CN 201420702619 U CN201420702619 U CN 201420702619U CN 204189015 U CN204189015 U CN 204189015U
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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]
Abstract
The utility model embodiment provides a kind of unit from start-stop control system, this system comprises: function group acquisition means, for setting the default plantwide control target that will perform power plant, preset plantwide control target to be completed by multiple device systems co-controlling, send the enabled instruction starting a designated equipment system in multiple device systems in turn to each subfunction group acquisition means; Each subfunction group acquisition means sends call instruction according to the enabled instruction received to the device drives end started needed for designated equipment system, and the triggering timing module corresponding with designated equipment system starts timing, when the timing of the timing module in function group acquisition means reaches the preset duration of designated equipment system, this timing module Trigger Function group acquisition means sends enabled instruction to the subfunction group acquisition means starting next device systems; Each device drives end starts the equipment in designated equipment system according to the call instruction received.The program improves the determinacy of unit from start-stop control system start-up course.
Description
Technical field
The utility model relates to GPA control technology field, and particularly a kind of unit is from start-stop control system.
Background technology
Drag in a genset at Gas-steam Combined Cycle two, system architecture is comparatively complicated, operations staff needs in the face of two gas turbine, two waste heat boilers, three generators, a steam turbine and associated satellite systems, run responsibility weight, treatment difficulty is large, especially, in machine set system startup, stopped process, operation requirements is higher.
Along with the continuous maturation of DCS system development and improving constantly of local control unit control accuracy, the requirement of generating plant to control system also improves constantly.Unit becomes from start-stop control system (Automatic Plant Start-up andShutdown System is called for short APS) the representative index weighing power plant aut omation degree.
In prior art, APS design diagram as shown in Figure 1, and at GC layer, assume responsibility for the selection of level of factory system control model and the judgement of control overflow, its control objectives is plantwide control requirement.At SGC layer, assume responsibility for system-level control model and judge and control procedure realization, is unique calling function of factory system for use in carrying.The on off control of unit all devices system realizes by SGC layer, intervenes without the need to running.In driving stage, only switch, the start stop operation of finishing equipment, only comprise the relay protective scheme of equipment, and other all control overflow complete by SGC layer.In the actual mechanical process of operations staff, the unique channel of its operating equipment is realized by SGC exactly.So both ensure that the diversity of unit operation, convenient operation adjusts the order of unit operational outfit at any time according to actual conditions, have the reliability and security that can ensure system cloud gray model.
But at present, drag the design of GC layer in the APS of a genset generally to follow following principle for Gas-steam Combined Cycle two, as shown in Figure 2:
(1) locate unit starting ability, determine the Starting mode on basis;
(2) take sequence flow as control objectives, single-threaded, simple mode, terminates the interface signal as each sequentially-operating using SGC process;
(3) using device action result as process action benchmark mode.
Known by the typical design flow figure shown in above-mentioned Fig. 2, the mentality of designing of prior art is at SGC, GC design level, all using the measuring point feedback signal of device systems, control subsystem as the complete mark of this step of system sequence, therefore very big to the measuring point dependence of equipment on the spot, and the mission that the measuring point imparting equipment is on the spot very strong, once point layout, mounting process existing problems, there is very large uncertainty by making the start-up course of APS.
Utility model content
The utility model embodiment provides a kind of unit from start-stop control system, to improve the determinacy of unit from start-stop control system start-up course.This system comprises: function group acquisition means, multiple subfunction group acquisition means and multiple device drives end, wherein, described function group acquisition means, for setting the default plantwide control target that will perform power plant, described default plantwide control target is completed by multiple device systems co-controlling, sends the enabled instruction starting a designated equipment system in described multiple device systems in turn to each subfunction group acquisition means; Each subfunction group acquisition means, for sending call instruction according to the enabled instruction received to the device drives end started needed for described designated equipment system, and the triggering timing module corresponding with described designated equipment system starts timing; Described function group acquisition means, comprise: multiple timing module, the corresponding timing module of each device systems in described multiple device systems, each timing module is used for starting timing when subfunction group acquisition means starts the device systems corresponding with this timing module, reach the preset duration of the device systems of described correspondence, this timing module Trigger Function group acquisition means sends enabled instruction to the subfunction group acquisition means starting next device systems; Each device drives end, for starting the equipment in described designated equipment system according to the call instruction received.
In one embodiment, the preset duration of each timing module timing is that subfunction group acquisition means invocation facility drive end starts the summation setting duration in the device systems corresponding with this timing module needed for each equipment.
In one embodiment, each timing module, specifically for carrying out timing when device drives end start-up temperature opertaing device.
In one embodiment, described function group acquisition means, also for when receiving a subfunction group acquisition means and starting the complete signal of a designated equipment system, sends enabled instruction to the subfunction group acquisition means starting next device systems.
In the utility model embodiment, after the default plantwide control target that will be performed power plant by setting in function group acquisition means, the enabled instruction starting a designated equipment system in described multiple device systems is sent in turn to each subfunction group acquisition means, subfunction group acquisition means sends call instruction according to the enabled instruction received to the device drives end started needed for described designated equipment system again, and the triggering timing module corresponding with designated equipment system starts timing, when the timing of the timing module arranged in function group acquisition means reaches the preset duration of designated equipment system, this timing module Trigger Function group acquisition means sends enabled instruction to the subfunction group acquisition means starting next device systems, achieving function group acquisition means can according to the trigger pip of timing module, the enabled instruction starting a designated equipment system in described multiple device systems is sent in turn to each subfunction group acquisition means, namely achieve using the timing of timing module as device systems, the complete signal of this step of control subsystem sequence, with prior art, with device systems, the measuring point feedback signal of control subsystem is compared as the mark that this step of system sequence is complete, reduce the measuring point dependence to equipment on the spot, thus improve the determinacy of unit from start-stop control system start-up course.
Accompanying drawing explanation
Accompanying drawing described herein is used to provide further understanding of the present utility model, forms a application's part, does not form restriction of the present utility model.In the accompanying drawings:
Fig. 1 be in prior art unit from the structural representation of start-stop control system;
Fig. 2 be in prior art unit from the design flow diagram of start-stop control system;
Fig. 3 is that a kind of unit of providing of the utility model embodiment is from start-stop control system;
Fig. 4 is the Booting sequence figure of a kind of function group acquisition means that the utility model embodiment provides;
Fig. 5 is the Booting sequence figure of a kind of subfunction group acquisition means that the utility model embodiment provides.
Embodiment
For making the purpose of this utility model, technical scheme and advantage clearly understand, below in conjunction with embodiment and accompanying drawing, the utility model is described in further details.At this, exemplary embodiment of the present utility model and illustrating for explaining the utility model, but not as to restriction of the present utility model.
In the utility model embodiment, provide a kind of unit from start-stop control system, as shown in Figure 3, this system comprises: function group acquisition means (i.e. GC layer) 301, multiple subfunction group acquisition means 302 (i.e. SGC layer) and multiple device drives end 303, wherein
Described function group acquisition means 301, for setting the default plantwide control target that will perform power plant, described default plantwide control target is completed by multiple device systems co-controlling, sends the enabled instruction starting a designated equipment system in described multiple device systems in turn to each subfunction group acquisition means;
Each subfunction group acquisition means 302, for sending call instruction according to the enabled instruction received to the device drives end started needed for described designated equipment system, and the triggering timing module corresponding with described designated equipment system starts timing;
Described function group acquisition means 301, comprising:
Multiple timing module 304, the corresponding timing module of each device systems in described multiple device systems, each timing module is used for starting timing when subfunction group acquisition means starts the device systems corresponding with this timing module, reach the preset duration of the device systems of described correspondence, this timing module Trigger Function group acquisition means sends enabled instruction to the subfunction group acquisition means starting next device systems;
Each device drives end 303, for starting the equipment in described designated equipment system according to the call instruction received.
Known as shown in Figure 3, in the utility model embodiment, after the default plantwide control target that will be performed power plant by setting in function group acquisition means, the enabled instruction starting a designated equipment system in described multiple device systems is sent in turn to each subfunction group acquisition means, subfunction group acquisition means sends call instruction according to the enabled instruction received to the device drives end started needed for described designated equipment system again, and the triggering timing module corresponding with designated equipment system starts timing, when the timing of the timing module arranged in function group acquisition means reaches the preset duration of designated equipment system, this timing module Trigger Function group acquisition means sends enabled instruction to the subfunction group acquisition means starting next device systems, achieving function group acquisition means can according to the trigger pip of timing module, the enabled instruction starting a designated equipment system in described multiple device systems is sent in turn to each subfunction group acquisition means, namely achieve using the timing of timing module as device systems, the complete signal of this step of control subsystem sequence, with prior art, with device systems, the measuring point feedback signal of control subsystem is compared as the mark that this step of system sequence is complete, reduce the measuring point dependence to equipment on the spot, thus improve the determinacy of unit from start-stop control system start-up course.
During concrete enforcement, above-mentioned functions group acquisition means (i.e. GC layer) achieves can according to the trigger pip of timing module, the enabled instruction of a designated equipment system in described multiple device systems is started in turn to the transmission of each subfunction group acquisition means (i.e. SGC layer), reach with opened loop control thinking to realize the controlling functions of unit from start-stop control system, concrete, the function group acquisition means of above-mentioned unit in start-stop control system, can also when receiving a subfunction group acquisition means and starting the complete signal of a designated equipment system, enabled instruction is sent to the subfunction group acquisition means starting next device systems.Such as, as shown in Figure 4, in the start-up course of GC layer, after GC layer sends the enabled instruction of startup first device systems to a SGC layer, SGC layer starts to call the device drives end needed for startup first device systems, and trigger the timing module (this timing module can be timer) corresponding with first device systems and start timing, when timing module timing reaches preset duration corresponding to first device systems, or SGC layer call device drives end needed for startup first device systems complete time, trigger the SGC layer transmission enabled instruction of GC layer to startup second device systems, the SGC layer starting second device systems starts to call the device drives end needed for startup second device systems, and trigger the timing module corresponding with second device systems and start timing, when timing module timing reaches preset duration corresponding to second device systems, or SGC layer call device drives end needed for startup second device systems complete time, trigger the SGC layer transmission enabled instruction of GC layer to startup the 3rd device systems, operate successively, until GC layer sends enabled instruction for each device systems completed in multiple device systems of default plantwide control target to SGC layer, to complete the startup of GC layer.
During concrete enforcement, the preset duration of each timing module timing is that subfunction group acquisition means invocation facility drive end starts the summation setting duration in the device systems corresponding with this timing module needed for each equipment, concrete, the process of each equipment in the device systems corresponding with this timing module is started as shown in Figure 5 for subfunction group acquisition means invocation facility drive end, when SGC layer first the device drives end called needed for starting outfit system carrys out starting outfit 1, triggering timing module starts timing, when equipment 1 starts complete, the timing of timing module reaches the setting duration calling first device drives end and come needed for starting outfit 1, equipment 1 starts complete signal to be triggered second device drives end that SGC layer calls needed for starting outfit system and carrys out starting outfit 2, and triggering timing module starts to carry out timing to calling the setting duration that second device drives end come needed for starting outfit 2, equipment 2 starts complete signal to be triggered the 3rd the device drives end that SGC layer calls needed for starting outfit system and carrys out starting outfit 3, operate successively, until SGC layer invocation facility drive end carrys out all devices in starting outfit system.During concrete enforcement, the setting duration that invocation facility drive end comes needed for starting outfit can be arranged according to the characteristic of equipment.
During concrete enforcement, for the equipment on the spot needing control temperature, there is larger inaccuracy in the sign being characterized in temperature point on the spot of temperature, in order to realize the control coming control temperature type or related system exactly better with opened loop control thought, in the present embodiment, above-mentioned timing module is mainly for carrying out timing when device drives end start-up temperature opertaing device.
In the utility model embodiment, after the default plantwide control target that will be performed power plant by setting in function group acquisition means, the enabled instruction starting a designated equipment system in described multiple device systems is sent in turn to each subfunction group acquisition means, subfunction group acquisition means sends call instruction according to the enabled instruction received to the device drives end started needed for described designated equipment system again, and the triggering timing module corresponding with designated equipment system starts timing, when the timing of the timing module arranged in function group acquisition means reaches the preset duration of designated equipment system, this timing module Trigger Function group acquisition means sends enabled instruction to the subfunction group acquisition means starting next device systems, achieving function group acquisition means can according to the trigger pip of timing module, the enabled instruction starting a designated equipment system in described multiple device systems is sent in turn to each subfunction group acquisition means, namely achieve using the timing of timing module as device systems, the complete signal of this step of control subsystem sequence, with prior art, with device systems, the measuring point feedback signal of control subsystem is compared as the mark that this step of system sequence is complete, reduce the measuring point dependence to equipment on the spot, thus improve the determinacy of unit from start-stop control system start-up course.
The foregoing is only preferred embodiment of the present utility model, be not limited to the utility model, for a person skilled in the art, the utility model embodiment can have various modifications and variations.All within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (4)
1. unit is from a start-stop control system, it is characterized in that, comprising: function group acquisition means, multiple subfunction group acquisition means and multiple device drives end, wherein,
Described function group acquisition means, for setting the default plantwide control target that will perform power plant, described default plantwide control target is completed by multiple device systems co-controlling, sends the enabled instruction starting a designated equipment system in described multiple device systems in turn to each subfunction group acquisition means;
Each subfunction group acquisition means, for sending call instruction according to the enabled instruction received to the device drives end started needed for described designated equipment system, and the triggering timing module corresponding with described designated equipment system starts timing;
Described function group acquisition means, comprising:
Multiple timing module, the corresponding timing module of each device systems in described multiple device systems, each timing module is used for starting timing when subfunction group acquisition means starts the device systems corresponding with this timing module, reach the preset duration of the device systems of described correspondence, this timing module Trigger Function group acquisition means sends enabled instruction to the subfunction group acquisition means starting next device systems;
Each device drives end, for starting the equipment in described designated equipment system according to the call instruction received.
2. unit as claimed in claim 1 is from start-stop control system, it is characterized in that, the preset duration of each timing module timing is that subfunction group acquisition means invocation facility drive end starts the summation setting duration in the device systems corresponding with this timing module needed for each equipment.
3. unit as claimed in claim 1 or 2 is from start-stop control system, it is characterized in that,
Each timing module, specifically for carrying out timing when device drives end start-up temperature opertaing device.
4. unit as claimed in claim 1 or 2 is from start-stop control system, it is characterized in that, described function group acquisition means, also for when receiving a subfunction group acquisition means and starting the complete signal of a designated equipment system, send enabled instruction to the subfunction group acquisition means starting next device systems.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420702619.2U CN204189015U (en) | 2014-11-20 | 2014-11-20 | Unit is from start-stop control system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201420702619.2U CN204189015U (en) | 2014-11-20 | 2014-11-20 | Unit is from start-stop control system |
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| CN204189015U true CN204189015U (en) | 2015-03-04 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105676801A (en) * | 2014-11-20 | 2016-06-15 | 国家电网公司 | Automatic plant startup and shutdown system |
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2014
- 2014-11-20 CN CN201420702619.2U patent/CN204189015U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105676801A (en) * | 2014-11-20 | 2016-06-15 | 国家电网公司 | Automatic plant startup and shutdown system |
| CN105676801B (en) * | 2014-11-20 | 2019-04-05 | 国家电网公司 | Unit is from start-stop control system |
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