CN203338021U - Generating set coordination and control system - Google Patents
Generating set coordination and control system Download PDFInfo
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- CN203338021U CN203338021U CN2013204297535U CN201320429753U CN203338021U CN 203338021 U CN203338021 U CN 203338021U CN 2013204297535 U CN2013204297535 U CN 2013204297535U CN 201320429753 U CN201320429753 U CN 201320429753U CN 203338021 U CN203338021 U CN 203338021U
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Abstract
The utility model discloses a generating set coordination and control system, which comprises a coordination and control module, a plurality of local control modules, a feed-forward control module and a fuzzy control module, wherein the coordination and control module is used for comparing a load capacity segmented standard value with a load, transmitting the power, a pressure set value, the actual power and a pressure value to the local control modules, and transmits deviation data to the feed-forward control module; the local control modules are used for generating coordination and control signals and transmitting the coordination and control signals to the fuzzy control module; the feed-forward control module is used for carrying out feed-forward algorithm processing on the deviation data so as to generate a feed-forward instruction; and the fuzzy control module is used for carrying out weight processing on the coordination and control signals, and outputting a final control instruction in the form of weight. The generating set coordination and control system solves a problem of quick response to network load requirements and a problem of ensuring the safety and stable running of a generating set and suppressing various interference factors in the load changing process.
Description
Technical field
The utility model relates to mechanical control field, specifically, relates to a kind of generator group coordination and control system.
Background technology
The workload demand of electrical network is subject to the impact of the factors such as industrial and agricultural production, social life, weather conditions very large, yet the randomness of above-mentioned factor is very strong, (for example: summer temperature raises, and air conditioner load rises rapidly, strengthens network load; The volume of the flow of passengers is huge during spring transportation, the power load of transportation department is increased sharply, strengthen network load etc.), the economic storage problem of at present large capacity electric energy is solved again effectively simultaneously, this just means that genset not only will have good performance near definite load point, more will adapt to the demand of varying load on a large scale.
At present, in the situation that a large amount of accesses of scale new forms of energy electric power, large unit thermal power generation unit processed has been born more quick load-responsive and has been changed, and guarantees the task of power grid energy supply and demand mobile equilibrium.For the thermal electric module unit, the caused combustion conditions variation of the wide variation of load, heat transfer property variation, steam flow and parameter variation etc. certainly will make a significant impact the dynamic and static characteristic of unit; Simultaneously, the ON/OFF that various utility appliance produce with load variations, the operation such as rise/stop and also can cause larger interference to the normal operation of unit.
Therefore, how to solve the quick response to the network load demand, guarantee safety, the stable operation of unit in quick varying load process and the adverse effect that suppresses various disturbing factors in the varying load process, just become technical matters urgently to be resolved hurrily.
The utility model content
Technical problem to be solved in the utility model is to provide a kind of generator group coordination and control system, to solve the quick response to the network load demand, guarantee safety, the stable operation of unit in quick varying load process and the problem that suppresses the adverse effect of various disturbing factors in the varying load process.
For solving the problems of the technologies described above, the utility model provides a kind of generator group coordination and control system, it is characterized in that, comprising: coordinating control module, a plurality of Partial controll module, feedforward control module and fuzzy control model; Wherein,
Described coordinating control module, load for the described genset of Real-Time Monitoring, and compare with the described load monitored according to the inner predefined load segmentation criteria value of described coordinating control module, generate the comparison result data, according to these comparison result data by the power of described genset, pressure given value and real power, force value is sent to the described Partial controll module corresponding with different load amount piecewise interval, and for the power by described genset, pressure given value and real power, the deviation data of force value and the corresponding control signal generated are sent to described feedforward control module,
Described Partial controll module, carry out the control algorithm processing for power, pressure given value and the real power, the force value that receive the described genset that described coordinating control module sends, generates to coordinate control signal and be sent to described fuzzy control model;
Described feedforward control module, be used for receiving the control signal of described coordinating control module transmission and power, pressure given value and the real power of described genset, the deviation data of force value, according to described control signal, this deviation data carried out to feedforward arithmetic processing generation feedforward instruction and be sent to described genset;
Described fuzzy control model, the described coordination control signal sent for receiving the described Partial controll module corresponding with different load amount piecewise interval, carry out the weights processing, with the final steering order of weights formal output, be sent in described genset and coordinate to control.
Further, wherein, described coordinating control module, be further used for the described load piecewise interval corresponding according to described comparison result data, the described output weights that the numerical value of 0 to 1 is weights are take in generation, and are 1 corresponding to the weighted sum of the described output weights of the described load piecewise interval of difference.
Further, wherein, described load piecewise interval, further carry out dynamically adjusting for 50%, the 70% and 90% load piecewise interval of dividing as load segmentation criteria value according to described genset rated load amount or according to the situation of described genset the load piecewise interval of dividing.
Further, wherein, described Partial controll module, be further high load capacity Partial controll module, middle load Partial controll module and underload Partial controll module; Wherein,
Described high load capacity Partial controll module, couple mutually with described coordinating control module and fuzzy control model, for the load point place in described rated load amount 90% and be greater than in the load piecewise interval of this rated load amount 90% and coordinate to control; In the load piecewise interval of described rated load amount 70% to 90%, with described middle load Partial controll module, jointly coordinate to control;
Described middle load Partial controll module, couple mutually with described coordinating control module and fuzzy control model, for the load point place in described rated load amount 70%, coordinates to control; In the load piecewise interval of described rated load amount 70% to 90%, with described high load capacity Partial controll module, jointly coordinate to control; In the load piecewise interval of described rated load amount 50% to 70%, with described underload Partial controll module, jointly coordinate to control;
Described underload Partial controll module, couple mutually with described coordinating control module and fuzzy control model, for the load point place in described rated load amount 50% and be less than in the load piecewise interval of this rated load amount 50% and coordinate to control; In the load piecewise interval of described rated load amount 50% to 70%, with described middle load Partial controll module, jointly coordinate to control.
Further, wherein, described final steering order, further control the adjustment of main steam control valve aperture, main steam pressure adjustment and the output power adjustment of described genset.
Compared with prior art, a kind of generator group coordination and control system described in the utility model has reached following effect:
1) adopt the genset of technical solutions of the utility model directly to increase or to reduce fuel quantity by the mode of dynamic Feedforward, significantly change the energy input level of unit, thereby effectively realize the quick response to the network load demand, dynamic Feedforward has good noiseproof feature simultaneously, can suppress various disturbing factors in the varying load process, avoid interference the adverse effect of generation;
2) adopt the genset of technical solutions of the utility model can realize that multi-controller effectively integrates, choose optimal controller for different operating modes, and can realize the natural transition between controller, thereby effectively guaranteed safety, the stable operation of unit in quick varying load process, accelerated dynamic response Reducing overshoot simultaneously;
3) technical scheme described in the utility model, can also be for various controller and control system, practical, and version is simple, to control parameter directly perceived, and very strong operability is arranged.
The accompanying drawing explanation
Accompanying drawing described herein is used to provide further understanding of the present utility model, forms a part of the present utility model, and schematic description and description of the present utility model, for explaining the utility model, does not form improper restriction of the present utility model.In the accompanying drawings:
The structured flowchart that Fig. 1 is the generator group coordination and control system described in the utility model embodiment mono-;
The preferred structure block diagram that Fig. 2 is the generator group coordination and control system described in the utility model embodiment mono-;
Fig. 3 is the generator group coordination control method process flow diagram described in the utility model embodiment bis-.
Embodiment
Censure specific components as used some vocabulary in the middle of instructions and claim.Those skilled in the art should understand, and hardware manufacturer may be called same assembly with different nouns.This specification and claims are not used as distinguishing the mode of assembly with the difference of title, but the difference on function is used as the criterion of distinguishing with assembly.As " comprising " mentioned in the middle of instructions and claim in the whole text is an open language, therefore should be construed to " comprise but be not limited to "." roughly " refer in acceptable error range, those skilled in the art can solve the technical problem in the certain error scope, substantially reach described technique effect.In addition, " couple " word and comprise any indirectly electric property coupling means that directly reach at this.Therefore, if describe a first device in literary composition, be coupled to one second device, represent that described first device can directly be electrically coupled to described the second device, or indirectly be electrically coupled to described the second device by other devices or the means that couple.The instructions subsequent descriptions is for implementing better embodiment of the present utility model, and right described description is to illustrate that rule of the present utility model is purpose, not in order to limit scope of the present utility model.Protection domain of the present utility model is as the criterion when looking the claims person of defining.
Below in conjunction with accompanying drawing, the utility model is described in further detail, but not as to restriction of the present utility model.
Embodiment mono-
As shown in Figure 1, be the described a kind of generator group coordination and control system of the utility model embodiment mono-, it is characterized in that, comprising: coordinating control module 101, a plurality of Partial controll module 102, feedforward control module 103 and fuzzy control model 104; Wherein,
Described coordinating control module 101, respectively with described a plurality of Partial controll modules 102, feedforward control module 103 and genset couple mutually, load for the described genset of Real-Time Monitoring, and compare according to the inner predefined load segmentation criteria value of described coordinating control module 101 and the described load monitored, generate the comparison result data, according to these comparison result data by the power of described genset, pressure given value and real power, force value is sent to the described Partial controll module 102 corresponding with different load amount piecewise interval, and for the power by described genset, pressure given value and real power, the deviation data of force value and the corresponding control signal generated are sent to described feedforward control module 103.
Described Partial controll module 102, with described coordinating control module 101 and fuzzy control model 104, couple mutually, carry out the control algorithm processing for power, pressure given value and the real power, the force value that receive the described genset that described coordinating control module 101 sends, generate and coordinate control signal and be sent to described fuzzy control model 104.
Described feedforward control module 103, with described coordinating control module 101, couple mutually, be used for receiving the control signal of described coordinating control module 101 transmissions and power, pressure given value and the real power of described genset, the deviation data of force value, according to described control signal, this deviation data carried out to feedforward arithmetic processing generation feedforward instruction and be sent to described genset.
Described fuzzy control model 104, with described a plurality of Partial controll modules 102 and genset, couple mutually respectively, the described coordination control signal sent for receiving the described Partial controll module corresponding with different load amount piecewise interval 102, carry out the weights processing, with the final steering order of weights formal output, be sent in described genset and coordinate to control.
Further, described coordinating control module 101 can be central processing unit, single-chip microcomputer or process chip or the terminal that has arbitrarily good processing capacity.The inner predefined described load segmentation criteria value of described coordinating control module 101 can be obtained by fuzzy membership function, furthermore, according to described genset rated load amount 50%, 70% and 90% as load segmentation criteria value, thereby with this standard value, described load is divided into to different piecewise intervals, preferably, described load piecewise interval is divided into high, medium and low three sections.Described coordinating control module 101 is according to described load piecewise interval, to produce [0,1] numerical value between is the weights described output weights of (closed interval comprises 0 and 1 value), and is 1 corresponding to the weighted sum of the described output weights of the described load piecewise interval of difference.Described coordinating control module 101 utilizes fuzzy membership function can realize effectively integrating of a plurality of described Partial controll modules 102, can adopt 102 pairs of controlled devices of described Partial controll module of the most applicable current working to implement effectively to control for different operating modes, can realize again natural transition, unperturbed switching between a plurality of described Partial controll modules 102.
Further, described Partial controll module 102 can be central processing unit, single-chip microcomputer or the process chip that has arbitrarily good processing capacity, the quantity of described Partial controll module 102 specifically will be arranged according to described load piecewise interval, as preferably, as shown in Figure 2, described Partial controll module 101 be three (for convenience of description, to three described Partial controll modules difference labels), be further high load capacity Partial controll module 1011, middle load Partial controll module 1012 and underload Partial controll module 1013; Wherein,
Described high load capacity Partial controll module 1011, couple mutually with described coordinating control module 101 and fuzzy control model 104, for the load point place in described rated load amount 90% and be greater than in the load piecewise interval of this rated load amount 90% and coordinate to control; In the load piecewise interval of described rated load amount 70% to 90%, with described middle load Partial controll module 1012, jointly coordinate to control;
Described middle load Partial controll module 1012, couple mutually with described coordinating control module 101 and fuzzy control model 104, for the load point place in described rated load amount 70%, coordinates to control; In the load piecewise interval of described rated load amount 70% to 90%, with described high load capacity Partial controll module 1011, jointly coordinate to control; In the load piecewise interval of described rated load amount 50% to 70%, with described underload Partial controll module 1013, jointly coordinate to control;
Described underload Partial controll module 1013, couple mutually with described coordinating control module 101 and fuzzy control model 104, for the load point place in described rated load amount 50% and be less than in the load piecewise interval of this rated load amount 50% and coordinate to control; In the load piecewise interval of described rated load amount 50% to 70%, with described middle load Partial controll module 1012, jointly coordinate to control.
Further, the load value of above-mentioned interval division can dynamically be adjusted according to the unit situation.
Further, described feedforward control module 103 is the control modules with dynamic Feedforward characteristic, it can be specifically control chip, described feedforward control module 103 can directly increase according to the variation of load the fuel quantity that (or minimizing) enters boiler, change greatly the energy input level of unit, accelerate the energy equilibrium process of unit, when the assurance load is followed fast, main steam pressure is relatively stable.
Further, the described coordination control signal that the described Partial controll module that described fuzzy control model 104 is corresponding by different load amount piecewise interval sends is carried out weights and is processed the described final steering order produced, further control the adjustment of main steam control valve aperture, main steam pressure adjustment and the output power adjustment of described genset, described final steering order still means in the mode of weights, and its weighted sum and described output weights are consistent, and weighted sum is 1.
Embodiment bis-
As shown in Figure 3, be the described a kind of generator group coordination control method of the utility model embodiment bis-, comprising:
Further, for step 301, described load segmentation criteria value can be obtained by fuzzy membership function, specifically according to described genset rated load amount 50%, 70% and 90% as load segmentation criteria value, thereby with this standard value, described load is divided into to different piecewise intervals, preferably, described load piecewise interval is divided into high, medium and low three sections.Described coordinating control module 101 is according to described load piecewise interval, to produce [0,1] numerical value between is the weights described output weights of (closed interval comprises 0 and 1 value), and is 1 corresponding to the weighted sum of the described output weights of the described load piecewise interval of difference.
Adopt described fuzzy membership function by described load segmentation, can realize effectively integrating a plurality of controllers, can adopt the controller of applicable current working to implement effectively to control to controlled device for different operating modes, can realize again natural transition, unperturbed switching between a plurality of controllers.
Specifically, in step 301, described coordination control signal is classified according to described load piecewise interval, is further divided into high load capacity and coordinates control signal, middle load coordinated control signal and underload coordination control signal; Wherein,
Described high load capacity is coordinated control signal, at the load point place of described rated load amount 90% and the load piecewise interval that is greater than this rated load amount 90% coordinates control; In the load piecewise interval of described rated load amount 70% to 90%, with described middle load coordinated control signal, jointly coordinate to control;
Described middle load coordinated control signal, coordinate at the load point place of described rated load amount 70% to control; Coordinating control signal with described high load capacity in the load piecewise interval of described rated load amount 70% to 90% coordinates to control jointly; Coordinating control signal with described underload in the load piecewise interval of described rated load amount 50% to 70% coordinates to control jointly;
Described underload is coordinated control signal, at the load point place of described rated load amount 50% and be less than in the load piecewise interval of this rated load amount 50% and coordinate control; In the load piecewise interval of described rated load amount 50% to 70%, with described middle load coordinated control signal, jointly coordinate to control.
Further, for step 302, adopt described feedforward control can directly increase according to the variation of load the fuel quantity that (or minimizing) enters boiler, change greatly the energy input level of unit, accelerate the energy equilibrium process of unit, when the assurance load is followed fast, main steam pressure is relatively stable.
Further, described final steering order, specifically control the adjustment of main steam control valve aperture, main steam pressure adjustment and the output power adjustment of described genset.
Compared with prior art, a kind of generator group coordination and control system described in the utility model has reached following effect:
1) adopt the genset of technical solutions of the utility model directly to increase or to reduce fuel quantity by the mode of dynamic Feedforward, significantly change the energy input level of unit, thereby effectively realize the quick response to the network load demand, dynamic Feedforward has good noiseproof feature simultaneously, can suppress various disturbing factors in the varying load process, avoid interference the adverse effect of generation;
2) adopt the genset of technical solutions of the utility model can realize that multi-controller effectively integrates, choose optimal controller for different operating modes, and can realize the natural transition between controller, thereby effectively guarantee safety, the stable operation of unit in quick varying load process;
3) technical scheme described in the utility model, can also be for various controller and control system, practical, and version is simple, to control parameter directly perceived, and very strong operability is arranged.
Above-mentioned explanation illustrates and has described some preferred embodiments of the present utility model, but as previously mentioned, be to be understood that the utility model is not limited to the disclosed form of this paper, should not regard the eliminating to other embodiment as, and can be used for various other combinations, modification and environment, and can, in utility model contemplated scope described herein, by technology or the knowledge of above-mentioned instruction or association area, be changed.And the change that those skilled in the art carry out and variation do not break away from spirit and scope of the present utility model, all should be in the protection domain of the utility model claims.
Claims (5)
1. a generator group coordination and control system, is characterized in that, comprising: coordinating control module, a plurality of Partial controll module, feedforward control module and fuzzy control model; Wherein,
Described coordinating control module, load for the described genset of Real-Time Monitoring, and compare with the described load monitored according to the inner predefined load segmentation criteria value of described coordinating control module, generate the comparison result data, according to these comparison result data by the power of described genset, pressure given value and real power, force value is sent to the described Partial controll module corresponding with different load amount piecewise interval, and for the power by described genset, pressure given value and real power, the deviation data of force value and the corresponding control signal generated are sent to described feedforward control module,
Described Partial controll module, carry out the control algorithm processing for power, pressure given value and the real power, the force value that receive the described genset that described coordinating control module sends, generates to coordinate control signal and be sent to described fuzzy control model;
Described feedforward control module, be used for receiving the control signal of described coordinating control module transmission and power, pressure given value and the real power of described genset, the deviation data of force value, according to described control signal, this deviation data carried out to feedforward arithmetic processing generation feedforward instruction and be sent to described genset;
Described fuzzy control model, the described coordination control signal sent for receiving the described Partial controll module corresponding with different load amount piecewise interval, carry out the weights processing, with the final steering order of weights formal output, be sent in described genset and coordinate to control.
2. generator group coordination and control system as claimed in claim 1, it is characterized in that, described coordinating control module, be further used for the described load piecewise interval corresponding according to described comparison result data, the output weights that the numerical value of 0 to 1 is weights are take in generation, and are 1 corresponding to the weighted sum of the described output weights of the described load piecewise interval of difference.
3. generator group coordination and control system as claimed in claim 2, it is characterized in that, described load piecewise interval, further carry out dynamically adjusting for 50%, the 70% and 90% load piecewise interval of dividing as load segmentation criteria value according to described genset rated load amount or according to the situation of described genset the load piecewise interval of dividing.
4. generator group coordination and control system as claimed in claim 3, is characterized in that, described Partial controll module is further high load capacity Partial controll module, middle load Partial controll module and underload Partial controll module; Wherein,
Described high load capacity Partial controll module, couple mutually with described coordinating control module and fuzzy control model, for the load point place in described rated load amount 90% and be greater than in the load piecewise interval of this rated load amount 90% and coordinate to control; In the load piecewise interval of described rated load amount 70% to 90%, with described middle load Partial controll module, jointly coordinate to control;
Described middle load Partial controll module, couple mutually with described coordinating control module and fuzzy control model, for the load point place in described rated load amount 70%, coordinates to control; In the load piecewise interval of described rated load amount 70% to 90%, with described high load capacity Partial controll module, jointly coordinate to control; In the load piecewise interval of described rated load amount 50% to 70%, with described underload Partial controll module, jointly coordinate to control;
Described underload Partial controll module, couple mutually with described coordinating control module and fuzzy control model, for the load point place in described rated load amount 50% and be less than in the load piecewise interval of this rated load amount 50% and coordinate to control; In the load piecewise interval of described rated load amount 50% to 70%, with described middle load Partial controll module, jointly coordinate to control.
5. generator group coordination and control system as claimed in claim 1, is characterized in that, described final steering order is further controlled the adjustment of main steam control valve aperture, main steam pressure adjustment and the output power adjustment of described genset.
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| CN2013204297535U CN203338021U (en) | 2013-07-18 | 2013-07-18 | Generating set coordination and control system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103425047A (en) * | 2013-07-18 | 2013-12-04 | 中国大唐集团科学技术研究院有限公司 | Power unit coordination control system and method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103425047A (en) * | 2013-07-18 | 2013-12-04 | 中国大唐集团科学技术研究院有限公司 | Power unit coordination control system and method |
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