CN103019220B - For the heliostat zone control system of tower type solar thermo-power station - Google Patents
For the heliostat zone control system of tower type solar thermo-power station Download PDFInfo
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- CN103019220B CN103019220B CN201210589985.7A CN201210589985A CN103019220B CN 103019220 B CN103019220 B CN 103019220B CN 201210589985 A CN201210589985 A CN 201210589985A CN 103019220 B CN103019220 B CN 103019220B
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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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- 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 invention discloses a kind of heliostat zone control system for tower type solar thermo-power station, for carrying out zonal control to the heliostat device in the mirror field of tower type solar thermo-power station, comprising main control computer, district's control machine and heliostat controller; Wherein, main control computer is used for heliostat devices all in control and management mirror field; District's control machine has one at least, the heliostat controller that control machine in each district is all under controlling place subregion according to the control command that main control computer sends; Heliostat controller has one at least, and every platform heliostat device configures a heliostat controller, and the control command that heliostat controller sends according to district's control machine controls heliostat device.The invention provides a kind of for carrying out the control system controlled in real time to the heliostat of One's name is legion in extensive tower power station mirror field, flexible structure, reliability is high, is conducive to the propagation and employment of tower power station.
Description
Technical field
The present invention relates to a kind of zone control system, particularly for the heliostat zone control system of tower type solar thermo-power station.
Background technology
Solar energy thermal-power-generating technology (English name Concentrating Solar Power, be called for short CSP) utilize large-area minute surface to reflex on heat collector by solar radiation energy, heat collector converts solar radiant energy to heat energy, and is generated electricity by thermodynamic cycle process.As the important way that sun power generates electricity on a large scale, solar energy thermal-power-generating has a series of obvious advantage.First, the carbon emission amount of its Life cycle is very low, only has 18g/kWh according to foreign study.In addition, this technology cost in existing solar energy generation technology is minimum, is easier to realize rapidly extensive industrialization.In addition, solar energy thermal-power-generating also has very strong with existing thermal power station and the compatibility advantage of network system.
Solar energy thermal-power-generating technology mainly contains following four kinds: the generating of trough type solar power generation, tower type solar energy thermal power generation, disc type solar energy heat and Fresnel solar energy thermal-power-generating.
Tower-type solar thermal power generating system adopts multiple plane mirror to carry out converge sunlight, and these plane mirrors are called heliostat.Many heliostats distributions are around tower, form huge heliostat field, sunshine is reflexed on receiver simultaneously, receiver is arranged on high tower, its collection area is very large, also it can be regarded as a huge imaging light-concentrating solar heat-collection device, so tower type solar heat collector focusing ratio is very high, receiver operation temperature can reach more than thousand degree.Compare other three kinds of photo-thermal power generation technology above-mentioned, tower type solar energy thermal power generation does not need long-distance pipe transmission system, and heat-energy losses reduces, and system effectiveness is high, is convenient to store heat simultaneously.Tower actuating medium available air, water or water vapor and fused salt etc.
Heliostat device is the vitals of tower type solar energy thermal power generation technology, is made up of structures such as heliostat minute surface, drive unit, control module and supports, for by sunshine reflect focalization to heat absorption tower heat collector.For making solar radiation energy concentrate on central point on heat collector, require that heliostat possesses high reflectance and high settled date precision, this needs control system of heliostat and realizes following the tracks of the settled date of heliostat carrying out high-precision monitor and forecast.Such as, application number is 200920149305.3, name is called in the Chinese patent application of " a kind of automatic control system of heliostat " and discloses a kind of automatic control system of heliostat, comprise host computer and be attached thereto and the PLC programmable controller controlled by it, controlling heliostat and carry out double-axle rotation and movement in pitch orientation and azimuth direction.
At present, to build or the generating capacity in built extensive tower type solar energy thermal power generation power station has reached more than 10MW level all.Such as, the Spain PS20 power station of coming into operation for 2009 has the generating capacity of 20MW, and equip 1,255 heliostats, the minute surface area of each heliostat reaches 120 square metres.And the U.S. at the maximum in the world tower power station ISEGS designed installed capacity built up to 392MW, take up an area 14.6 square kilometres, by installation nearly 173,000 heliostat, sunlight focused on about solar column of 137 meters high.
In these extensive tower power station, accurately to control every platform heliostat, needs carry out a large amount of real-time Communication for Power and calculating to the tracking mode of every platform heliostat and data, such as the real-time information such as settled date tracking mode, aiming spot, electrical fault information of every platform heliostat.Only have the accurate control of the heliostat simultaneously realized these One's name is legions, ensure real-time and the accuracy of whole system, just can guarantee the long-time steady operation of tower power station, this just proposes very high requirement to control system of heliostat.But corresponding, this also can raise the cost of control system of heliostat.
Meanwhile, the Jing Chang of extensive tower power station designs and arranges also increasingly sophisticated, and some tower power station even can adopt multi-tower structure, also requires the control system of heliostat supporting similar labyrinth.
Ensureing, on the basis that control system of heliostat basic function is achieved, how to reduce costs and become one, photo-thermal power generation field problem in the urgent need to address.
Summary of the invention
The object of the invention is the some shortcomings part for current tower photo-thermal power station heliostat tracking control technology, a kind of low cost, reliable, efficient tower photo-thermal power station heliostat zone control system are provided.
To achieve these goals, the invention provides a kind of heliostat zone control system for tower type solar thermo-power station, for carrying out zonal control to the heliostat device 5 in the mirror field of tower type solar thermo-power station, comprise main control computer 1, district's control machine 3 and heliostat controller 4; Wherein,
Described main control computer 1 is for heliostat devices 5 all in control and management mirror field;
Described district's control machine 3 has one at least, the heliostat controller 4 that control machine 3 in each district is all under controlling place subregion according to the control command that described main control computer 1 sends;
Described heliostat controller 4 has one at least, and every platform heliostat device 5 configures a heliostat controller 4, and the control command that heliostat controller 4 sends according to described district control machine 3 controls heliostat device 5.
In technique scheme, also comprise data and store 2; Described data store 2 for recording and store the data message about heliostat device 5.
In technique scheme, described main control computer 1 comprises heliostat tracing control module, heliostat administration module, partition management module and system management module etc.; Wherein,
Described heliostat tracing control module, for controlling following the tracks of day of heliostat device 5, can be supported automatically to control and Non-follow control;
Described heliostat administration module is used for managing separately heliostat device 5, comprises time synchronized, is playbacked by heliostat device 5 and clean the attended operation of heliostat device 5;
Described partition management module is used for managing heliostat subregion, can carry out unified management to all heliostat devices 5 in a subregion simultaneously;
Described system management module is used for managing at interior Dynamic System system information and user right.
In technique scheme, described district's control machine 3 comprises heliostat tracing control module, heliostat administration module; Wherein,
What described heliostat tracing control module stores had heliostat devices 5 all in the subregion of place comprises longitude and latitude geographic factor, heat collector target location tracking parameter, the operation result of heliostat device 5 is calculated in real time according to the astronomical formula of sun operation, corresponding control command is sent to described heliostat controller 4, then by described heliostat controller 4 control heliostat device 5 complete the settled date follow the tracks of action;
Described heliostat administration module is used for carrying out unified management to the heliostat device 5 in the subregion of control machine 3 place, district.
In technique scheme, described heliostat controller 4 comprises control module, network communication interface, control chip on the spot; Wherein,
Described control module is on the spot used for directly carrying out Non-follow control to heliostat device 5;
Described network communication interface is used for controlling machine 3 with described district and communicates;
Described control chip, for receiving the control command from district's control machine 3, controls driving and tracking that heliostat device 5 realizes heliostat.
In technique scheme, position is close and the multiple stage heliostat device 5 that tracking parameter is consistent forms a subregion, controls machine 3 and controls, be convenient to carry out unified management by a district.
In technique scheme, the radial direction being the center of circle is in same row and the consistent multiple heliostat devices 5 of horizontal direction controling parameters form a subregion with the heat absorption tower in tower type solar thermo-power station.
In technique scheme, the concentric circles circular arc being the center of circle is in same a line and the consistent multiple heliostat devices 5 of controling parameters in pitch orientation form a subregion with the heat absorption tower in tower type solar thermo-power station.
The invention has the advantages that:
The present invention adopts the multilayer control structure of master control and district's control, by heliostat and relevant software and hardware structure organic whole, the high precision tracking control and management to reaching several thousand heliostats can be realized, test through reality, efficiently, stable, reliable, easy to use, have accumulated valuable technical foundation for realizing extensive power plant construction.
In addition, the Jing Chang that the present invention can adapt to have any amount heliostat neatly controls and single tower multitower light field structure, brings good elasticity to heliostat control, heliostat network topology and light field design.
Accompanying drawing explanation
Fig. 1 is heliostat zone control system of the present invention structural representation in one embodiment;
Fig. 2 is the single tower mirror field schematic diagram by sectored deployment's subregion in an embodiment;
Fig. 3 is the main control computer control flow chart in an embodiment.
Drawing explanation
1 main control computer 2 data store 3 district's control machines
4 heliostat controller 5 heliostat devices 6 absorb heat tower
7 heliostat unit 8 one row heliostat unit
Embodiment
Now describe the present invention by reference to the accompanying drawings.
Fig. 1 is tower power station heliostat zone control system of the present invention structural representation in one embodiment.This zone control system is used for controlling each heliostat in the heliostat mirror field of tower power station.As shown in the figure, this zone control system comprises main control computer 1, district's control machine 3, data memory module 2 and heliostat controller 4, and wherein, described main control computer 1 has one, for heliostat devices 5 all in control and management mirror field; All heliostats in described heliostat mirror field are divided into several subregions, and district's control machine 3 is for controlling the heliostat controller 4 in one of them subregion; Described heliostat controller 4 is for controlling heliostat device 5, and every platform heliostat device 5 configures a heliostat controller 4; Described data memory module 2 is for storing the data relevant with all heliostat devices 5.Described main control computer 1 is connected on each district control machine 3, and described district's control machine 3 is then connected to the heliostat controller 4 that each heliostat device 5 in this subregion configures.Described data memory module 2 is directly connected with main control computer 1.
Below the modules in zone control system is described further.
Main control computer 1 is for heliostat devices 5 all in control and management mirror field.Main control computer 1 comprises heliostat tracing control module, heliostat administration module, partition management module and system management module etc.Wherein, described heliostat tracing control module was followed the tracks of for the settled date controlling heliostat device 5, user can use all in main control computer 1 order mirror field or of specifying to start to follow the tracks of or terminate to follow the tracks of to multiple stage heliostat device 5, and user also can carry out remote manual control to a certain heliostat device 5.Usually, heliostat tracing control module carries out controlling with the form of subregion tracing control, namely heliostat tracing control module is by district's control machine 3, make the heliostat device 5 of some subregions start to follow the tracks of or terminate to follow the tracks of simultaneously, and in tracing process, have the same target location tracking parameter identical with having some.Described heliostat administration module, for carrying out the daily management except the settled date follows the tracks of to heliostat device 5, comprises time synchronized, is playbacked by heliostat device 5 and clean the attended operation etc. of heliostat device 5.The heliostat device 5 that described partition management module is used for controlling district's control machine 3 a lower subregion carries out unified management, such as, can while a synchronous subregion under the current time of all heliostat devices 5.Described system management module manages the Dynamic System such as system information and user right.
Control machine 3 in district's is for heliostat devices 5 all in the subregion of control machine 3 place, control and management district.Similar with main control computer 1, district's control machine 3 comprises heliostat tracing control module, heliostat administration module etc.Wherein, described heliostat tracing control module stores has the tracking parameter such as longitude and latitude geographic factor, heat collector target location of heliostat devices 5 all in the subregion of place, the astronomical formula run according to the sun again calculates the operation result of heliostat device 5 in real time, corresponding control command is sent to heliostat controller 4, then by heliostat controller 4 control heliostat device 5 complete the settled date follow the tracks of action.This function is placed on the calculated amount that the benefit that control machine 3 in district's realizes is to have shared main control computer 1, also falls and lacked Internet traffic, can not system bottleneck be formed; And each district's control machine 3 can have different heat collector target locations, the multiple different structures such as single tower of energy flexible adaptation tower power station Jing Chang or multitower.Described heliostat administration module is used for carrying out unified management to heliostat device 5 in the subregion of control machine 3 place, district.
Heliostat controller 4 realizes settled date tracking for directly controlling heliostat device 5.Heliostat controller 4 comprises control module, network communication interface, control chip on the spot.Wherein, described control module is on the spot used for directly carrying out Non-follow control to heliostat device 5; Described network communication interface is used for controlling machine 3 with district and communicates; Described control chip, for receiving the control command from district's control machine 3, controls driving and tracking that heliostat device 5 realizes heliostat.
The data relevant with all heliostat devices 5 that data memory module 2 stores comprise duty and the operation note of heliostat.These data can be used for the working condition of adding up heliostat in a period of time, the operational use time of such as heliostat, for Jing Chang management provides Informational support.In other embodiments, described zone control system also can not comprise described data memory module.
Described zone control system is mainly used in controlling heliostat device 5, for the ease of understanding, is described further below to heliostat device 5.
Heliostat device 5 is followed the tracks of for realizing the settled date.In the present embodiment, heliostat device 5 adopts the mode of level and the pitching double-axis tracking sun.Described settled date tracing process is realized by the driving mechanism on heliostat device 5.The driving mechanism of heliostat device 5 comprises horizontal motor and pitching motor.Wherein, described horizontal motor moves in the horizontal direction for driving heliostat device 5, described pitching motor moves in pitch orientation for driving heliostat device 5, thus makes heliostat device 5 possess accurate level and pitch attitude to follow the tracks of the sun.There is being embodied as of the heliostat device 5 of above-mentioned functions conventionally known to one of skill in the art, be not described further herein.
In zone control system, how carrying out subregion to the heliostat in mirror field can have an impact to the effect of heliostat control, efficiency.Illustrate how subregion is carried out to Jing Chang below in conjunction with different situations, thus make zone control system of the present invention adapt to different Jing Chang layouts.
When design and establishing tower photo-thermal power station heliostat mirror field, with the tower that absorbs heat for the center of circle, in mirror field, heliostat can adopt sectored deployment's partitioned mode or concentric circles layout partitioned mode.
As shown in Figure 2, in one embodiment, single tower Jing Chang adopts sectored deployment's partitioned mode, i.e. each row heliostat longitudinal arrangement, on the radius that the tower 6 that is arranged in absorb heat is the center of circle.As shown in the figure, 7 is the combination of a heliostat controller 4 and a heliostat device 5, referred to as heliostat unit; 8 is the such heliostat unit of row, has 8; This row heliostat unit 7 is close in position, and controling parameters is in the horizontal direction consistent, they can be divided into a district, controls machine 3 and controls, be convenient to carry out unified management by a district.
In the embodiment of another single tower Jing Chang, the situation of concentric circles layout partitioned mode is contrary with sectored deployment partitioned mode, and every a line heliostat unit 7 is transversely arranged, on the concentric circles circular arc that the tower 6 that is arranged in absorb heat is the center of circle.Similarly, this row heliostat unit 7 is close in position, and controling parameters is in the pitch direction consistent, they can be divided into a district, controls machine 3 and controls, be convenient to carry out unified management by a district.
In the embodiment of a multitower Jing Chang, have multiple heat absorption tower 6 in mirror field, each heat absorption tower 6 configures multiple stage heliostat unit 7, and sunshine transmitting focusing absorbs heat on the heat collector of tower 6 to place by heliostat unit 7.In this case, all heliostat unit 7 under a heat absorption tower 6 can be divided into a district or multi-region, heliostat unit 7 in the same district heliostat unit 7 be subordinated in same heat absorption tower 6, district is controlled machine 3 by a district and is controlled, and is convenient to carry out unified management.
Be more than the description to heliostat zone control system of the present invention, below in conjunction with this system, for work order, the major control flow process of zone control system be described.Work order refer to control heliostat device 5 enter follow the tracks of sun state and by solar light focusing to heat absorption tower 6 heat collector on order.
As shown in Figure 3, the heliostat device 5 that zone control system of the present invention can help user to realize using main control computer 1 to control a subregion carries out work.
Step 101, user can select some subregions on main control computer 1, press play button; Main control computer 1 sends the district control machine 3 of work order to selected subregion;
After step 102, district's control machine 3 receive work order, the target location of all heliostat devices 5 under first calculating this subregion, then target location and work order are sent to heliostat controller 4;
Step 103, heliostat controller 4 first use the target location received to calculate level and the luffing parameter of heliostat device 5 needs, then send corresponding motion command to the horizontal motor on heliostat device 5 and pitching motor;
Step 104, heliostat device 5 are followed the tracks of the sun by order and are realized focusing on.
It should be noted last that, above embodiment is only in order to illustrate technical scheme of the present invention and unrestricted.Although with reference to embodiment to invention has been detailed description, those of ordinary skill in the art is to be understood that, modify to technical scheme of the present invention or equivalent replacement, do not depart from the spirit and scope of technical solution of the present invention, it all should be encompassed in the middle of right of the present invention.
Claims (7)
1. the heliostat zone control system for tower type solar thermo-power station, for carrying out zonal control to the heliostat device (5) in the mirror field of tower type solar thermo-power station, comprise main control computer (1), district's control machine (3) and heliostat controller (4); Wherein,
Described main control computer (1) is for heliostat devices (5) all in control and management mirror field;
Described district's control machine (3) has one at least, the heliostat controller (4) that each district control machine (3) is all under controlling place subregion according to the control command that described main control computer (1) sends;
Described heliostat controller (4) has one at least, every platform heliostat device (5) configuration heliostat controller (4), the control command that heliostat controller (4) sends according to described district control machine (3) controls heliostat device (5); It is characterized in that,
Position is close and the multiple stage heliostat device (5) that tracking parameter is a consistent composition subregion, controls machine (3) and controls, be convenient to carry out unified management by a district.
2. the heliostat zone control system for tower type solar thermo-power station according to claim 1, is characterized in that, also comprises data and stores (2); Described data store (2) for the data message recorded and store about heliostat device (5).
3. the heliostat zone control system for tower type solar thermo-power station according to claim 1 and 2, it is characterized in that, described main control computer (1) comprises heliostat tracing control module, heliostat administration module, partition management module and system management module etc.; Wherein,
Described heliostat tracing control module, for controlling following the tracks of day of heliostat device (5), can be supported automatically to control and Non-follow control;
Described heliostat administration module is used for managing separately heliostat device (5), comprises time synchronized, by the attended operation of heliostat device (5) playback and cleaning heliostat device (5);
Described partition management module is used for managing heliostat subregion, can carry out unified management to all heliostat devices (5) in a subregion simultaneously;
Described system management module is used for managing at interior Dynamic System system information and user right.
4. the heliostat zone control system for tower type solar thermo-power station according to claim 1 and 2, is characterized in that, described district's control machine (3) comprises heliostat tracing control module, heliostat administration module; Wherein,
What described heliostat tracing control module stores had heliostat devices (5) all in the subregion of place comprises longitude and latitude geographic factor, heat collector target location tracking parameter, the operation result of heliostat device (5) is calculated in real time according to the astronomical formula of sun operation, corresponding control command is sent to described heliostat controller (4), then complete settled date tracking action by described heliostat controller (4) control heliostat device (5);
Described heliostat administration module is used for carrying out unified management to the heliostat device (5) in the subregion of control machine (3) place, district.
5. the heliostat zone control system for tower type solar thermo-power station according to claim 1 and 2, is characterized in that, described heliostat controller (4) comprises control module, network communication interface, control chip on the spot; Wherein,
Described control module is on the spot used for directly carrying out Non-follow control to heliostat device (5);
Described network communication interface is used for controlling machine (3) with described district and communicates;
Described control chip is used for receiving the control command from district's control machine (3), controls driving and tracking that heliostat device (5) realizes heliostat.
6. the heliostat zone control system for tower type solar thermo-power station according to claim 1 and 2, it is characterized in that, the radial direction being the center of circle with the heat absorption tower in tower type solar thermo-power station is in same row and horizontal direction controling parameters consistent multiple heliostat devices (5) composition a subregion.
7. the heliostat zone control system for tower type solar thermo-power station according to claim 1 and 2, it is characterized in that, the concentric circles circular arc being the center of circle is in same a line and consistent multiple heliostat devices (5) composition subregion of controling parameters in pitch orientation with the heat absorption tower in tower type solar thermo-power station.
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| CN106124065A (en) * | 2016-08-09 | 2016-11-16 | 首航节能光热技术股份有限公司 | Thermal tower type heat extractor plugging based on infrared measurement of temperature detection reply control system |
| CN110007640B (en) * | 2018-12-07 | 2020-11-03 | 杭州朗泽安防技术有限公司 | Grading control system and control device for commodity safety |
| CN111076433A (en) * | 2019-12-31 | 2020-04-28 | 西派格工业智能装备(南通)有限公司 | Heliostat control system for solar thermal power station |
| CN112764417B (en) * | 2020-12-24 | 2023-03-31 | 浙江可胜技术股份有限公司 | Mirror field control system and method based on cleaning vehicle |
| CN114111067B (en) * | 2021-11-26 | 2022-09-16 | 北京聚树核科技有限公司 | Mirror field deviation rectifying method and device for tower type molten salt photo-thermal power generation system |
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