CN107368101A - A kind of heliostat device and method of work based on solar tracking sensor - Google Patents
A kind of heliostat device and method of work based on solar tracking sensor Download PDFInfo
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- CN107368101A CN107368101A CN201710538703.3A CN201710538703A CN107368101A CN 107368101 A CN107368101 A CN 107368101A CN 201710538703 A CN201710538703 A CN 201710538703A CN 107368101 A CN107368101 A CN 107368101A
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- tracking sensor
- solar tracking
- heliostat
- elevation angle
- gear
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D3/00—Control of position or direction
- G05D3/12—Control of position or direction using feedback
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- Control Of Position Or Direction (AREA)
Abstract
The invention discloses a kind of heliostat device and method of work based on solar tracking sensor, belong to solar energy heating technical field.Device includes solar tracking sensor, day support, gear assembly, spin elevation angle type heliostat, spin axis and controller, spin axis alignment light target, gear assembly is arranged on spin axis, passes through gearratio 2:1 relation, conversion of the spin elevation angle type heliostat normal vector to sun vector is realized, is then directed at the sun by solar tracking sensor, it is achieved thereby that not needing the heliostat closed-loop control of angular encoder and position of sun algorithm, enormously simplify control system；In Practical Project, it ensure that the precision of spin axis alignment light target, and gear assembly, to the installation accuracy between day support and solar tracking sensor three after, other installation accuracies can be reduced suitably, the requirement of installation accuracy is reduced to a certain extent, the place such as solar energy thermal-power-generating, solar furnace thermal-arrest, natural lighting suitable for large-scale use heliostat.
Description
Technical field
The invention belongs to solar energy heating technical field, more particularly to a kind of heliostat device based on solar tracking sensor and
Method of work.
Background technology
In tower type solar thermo-power station, heliostat is broadly divided into two classes by structure type, and one is azimuth-elevation type, its side
Position axle is now widely used in tower thermo-power station both domestic and external perpendicular to ground, elevation axis level in ground；Another is spin
Elevation angle type, spin axis is towards light target, elevation axis and spin axis right angle setting, due to unstable and installation the not side of operation center of gravity
Just, it is not widely used in tower thermo-power station now, but the elevation angle type heliostat optical property that spins is stronger than azimuth-elevation type, after
Development space it is very big.
There is hundreds of heliostat in mirror field, traditional control method was calculated too according to time and position of sun algorithm
Positive position vector, or sensor measurement position of sun vector, then according to exact position residing for heliostat and light target target, pass through public affairs
Formula calculates heliostat normal vector, and so as to be converted into the anglec of rotation of two axles, the anglec of rotation is controlled by encoder.It is specific to calculate
Method may be referred to Chen Yingtian professor article Non-imaging focusing heliostat (Solar Energy magazines,
71 phase page 155 in 2001).This control by algorithm and encoder is unavoidably because of the various errors such as alignment error, machine error
The numerical value for making to bring algorithm calculating into is not inconsistent with actual value, so as to control mistake occur, and often to the hardware requirement of controller
It is higher.
The present invention is innovated in mechanical structure, by the relation of gearratio, realizes spin elevation angle type heliostat normal direction
The conversion of sun vector is measured, is then directed at the sun by solar tracking sensor, it is achieved thereby that not needing angular encoder and too
The heliostat closed-loop control of positive position algorithm, enormously simplify control system；In Practical Project, it ensure that spin axis to quasi-optical
The precision of target, and gear assembly, to the installation accuracy between day support and solar tracking sensor three after, other installation accuracies can
It is appropriate to reduce, the requirement of installation accuracy is reduced to a certain extent.
The content of the invention
The purpose of the present invention is to propose to a kind of heliostat device and method of work based on solar tracking sensor, solves at present
System needs the problem of heliostat closed-loop control of angular encoder and position of sun algorithm, there is provided one simple and easy to be
System.
A kind of heliostat device based on solar tracking sensor, including solar tracking sensor, angular transition component, spin elevation angle type
Heliostat and controller, solar tracking sensor pass through the elevation angle axis connection of angular transition component and spin elevation angle type heliostat, angle
Transition components make that the rotary speed of solar tracking sensor is twice of elevation angle axle rotary speed and direction of rotation is identical.
The angular transition component is gear assembly, in addition to day support, and solar tracking sensor is fixed on on day support,
Sensor to Japanese side to perpendicular to plane on day support；To day support with being fixed to day support shaft gear, with to day support
The rotation of shaft gear and rotate；Spin elevation angle type heliostat and elevation angle shaft gear are relatively fixed, with the rotation of elevation angle shaft gear
Rotation；Gear assembly wall is fixed on spin axis；Gear assembly includes elevation angle shaft gear, counter gear, to day support shaft gear
With gear assembly wall；Elevation angle shaft gear, counter gear are identical with to day support shaft module, are separately mounted to gear assembly wall
On, elevation angle shaft gear and counter gear reference diameter are equal, are the half of counter gear to day support shaft gear compound graduation circle, face upward
Angle shaft gear engages with counter gear, gearratio 1:1, counter gear engages with to day support shaft gear, gearratio 2:1.
Device initially installs matching relationship：Spin axis is directed at light target, solar tracking sensor and spin elevation angle type heliostat
Normal vector all with spin axis diameter parallel.
The high-precision alignment light target of spin axis does not change over.
The solar tracking sensor can be directed at the sun in high precision, and the energy effective Feedback sun is with respect to the side of solar tracking sensor
Position, facilitate the rotation of controller control heliostat respective direction；The heliostat rotation can be by the stepping electricity of micro-stepping angle
Machine or big subtrahend than direct current generator power is provided, motor makes heliostat in both direction to rotate at a slow speed.
A kind of method of work of the heliostat device based on solar tracking sensor, light is reflexed in heliostat device by sunshine
On target during normal work, controller constantly receives the signal of solar tracking sensor at a certain time interval, and the signal contains
The sun rotation of control spin elevation angle type heliostat both direction, constantly adjusts the sun with respect to the azimuth information of solar tracking sensor
With respect to the orientation of solar tracking sensor, the sun is set to be ultimately at the surface of solar tracking sensor, the solar tracking sensor alignment sun, reflection
Sunshine is to light target.
The beneficial effects of the invention are as follows：The present apparatus introduces solar tracking sensor, cleverly by mechanical transmission structure on the settled date
Mirror tracking is converted into the tracking sun, realizes the heliostat closed-loop control for not needing angular encoder and position of sun algorithm, greatly
Simplify control system greatly；And in actual installation, if the precision of spin axis alignment light target is ensure that, and gear train
Part, to the installation accuracy between day support and solar tracking sensor three after, as perpendicularity of spin axis and elevation axis etc. other peace
Dress precision can be reduced suitably, have no effect on tracking accuracy；And the gear assembly of the present apparatus, to day support and solar tracking sensor portion
Divide compact, achievable high-precision volume production, so as to also be easily guaranteed that its precision high with whole heliostat device separation degree.
Brief description of the drawings
Fig. 1 is apparatus of the present invention overall structure diagram；
Fig. 2 is apparatus of the present invention detailed structure schematic diagram；
Fig. 3 is that apparatus of the present invention install cooperation schematic diagram；
Fig. 4 is apparatus of the present invention operation schematic diagram；
Label in apparatus of the present invention figure：Solar tracking sensor is 1, is 2 to day support, is 3 to day support shaft gear, reverse tooth
Take turns as 4, elevation angle shaft gear is 5, gear assembly wall 6, spin axis 7, and spin elevation angle type heliostat is 8, controller 9, the sun
For 10, light target 11.
Embodiment
The present invention proposes a kind of heliostat device based on solar tracking sensor, it is characterised in that the device is that possess automatically
The sun is tracked by the device of sun luminous directional reflectance function, is improved on spin elevation angle type heliostat, utilizes gear assembly
Heliostat normal direction is converted into solar direction, recycles solar tracking sensor to complete to follow the trail of day；It is achieved thereby that angle is not needed
The heliostat closed-loop control of encoder and position of sun algorithm, enormously simplify control system；
The heliostat device based on solar tracking sensor includes solar tracking sensor, day support, gear assembly, spin is faced upward
Angle-style heliostat and controller, wherein, gear assembly includes elevation angle shaft gear, counter gear, to day support shaft gear and gear
Component walls；This 3 modules are identical, are separately mounted on gear assembly wall, and elevation angle shaft gear and counter gear reference circle are straight
Footpath is equal, and to the half that day support shaft gear compound graduation circle is counter gear, elevation angle shaft gear engages with counter gear, gearratio 1:
1, counter gear engages with to day support shaft gear, gearratio 2:1；
Solar tracking sensor be fixed on on day support, ensure sensor to Japanese side to perpendicular to plane on day support；
To day support with being fixed to day support shaft gear, rotated with the rotation to day support shaft gear；Spin elevation angle type heliostat and
Elevation angle shaft gear is relatively fixed, and is rotated with the rotation of elevation angle shaft gear；Gear assembly wall is fixed on spin axis；Device is initial
Installation matching relationship be, spin axis alignment light target, solar tracking sensor and spin elevation angle type heliostat normal vector all with spin
Axle diameter parallel；
The method of work very simple of heliostat device based on solar tracking sensor, reflects sunshine in heliostat device
When on to light target, i.e., during normal work, controller constantly receives the signal of solar tracking sensor, the letter at a certain time interval
Number azimuth information of the sun with respect to solar tracking sensor is contained, so as to control the rotation of spin elevation angle type heliostat both direction,
So as to constantly adjust orientation of the sun with respect to solar tracking sensor, it is therefore an objective to the sun is ultimately at the surface of solar tracking sensor,
That is the solar tracking sensor alignment sun, so as to finally realize reflected sunlight to the function of light target；
Gear assembly can also be that internal-external gear combination, internal gear is the half that internal gear is outer tooth diameter, you can is realized
Twice of angular adjustment, gearratio 2:1；
Gear assembly can also be timing belt substitute, toothed belt transmission wheel respectively with to day support and spin the elevation angle type settled date
Mirror is fixed, and two synchronous pulley diameters are than 1:2, the transmission of 2 to 1 gearratios is realized by synchronous band connection.
The high-precision alignment light target of the spin axis must be kept not change over, and ensure gear assembly, to day
Installation accuracy between support and solar tracking sensor three；
Gear in the gear assembly could alternatively be other more accurate drive mechanisms, ensure to realize to day support
Rotary speed be and direction of rotation is identical twice of elevation angle axle rotary speed.
The solar tracking sensor needs the ability with the high accuracy alignment sun, and the energy effective Feedback sun is with respect to solar tracking
The orientation of sensor, facilitate the rotation of controller control heliostat respective direction；The heliostat rotation can be by micro-stepping angle
The stepper motor of degree or big subtrahend than direct current generator power is provided, the requirement to motor is to make heliostat in both direction
Quite to rotate at a slow speed, to ensure control accuracy.
Embodiments of the present invention are described further below in conjunction with the accompanying drawings.
In Fig. 1, gear assembly wall 6 is fixed on spin axis 7, and spin elevation angle type heliostat 8 and elevation angle shaft gear 5 are relatively solid
It is fixed, rotated with the rotation of elevation angle shaft gear 5；Controller 9 is determined by the signal control spin elevation angle type received to day sensor
The rotation of the both direction of solar eyepiece 8, so that being directed at the sun to day sensor 1, finally realize the function of heliostat；
In Fig. 2, elevation angle shaft gear 5, counter gear 4 and day support shaft gear 3 is separately mounted on gear assembly wall 6,
Elevation angle shaft gear 5 is equal with the reference diameter of counter gear 4, the half to the reference circle of day support shaft gear 3 for counter gear 4,
Elevation angle shaft gear 5 engages with counter gear 4, gearratio 1:1, counter gear 4 engages with to day support shaft gear 3, gearratio 2:
1；Solar tracking sensor 1 is fixed on on day support 2, ensure solar tracking sensor 1 to Japanese side to perpendicular to being put down on day support 2
Face；To day support 2 with being fixed to day support shaft gear 3, rotated with the rotation to day support shaft gear 2；
In Fig. 3, illustrate device and matching relationship be initially installed, spin axis 7 is directed at light target 11, solar tracking sensor 1 and from
The normal vector of elevation angle type heliostat 8 is revolved all with the diameter parallel of spin axis 7, and straight dashed line represents normal vector, continuous circular line frame table in figure
Show partial enlargement；
In Fig. 4, in the moving process of the sun 10, spin axis 7 is directed at light target 11 all the time, and due to gear drive relation,
When being directed at the sun 10 to day sensor 1, the spin normal vector of elevation angle type heliostat 8 divides the normal vector of the sun 10 and light target equally all the time
11 normal vectors, most sunshine is reflexed on light target 11 at last, and straight dashed line is normal vector in figure.
The beneficial effects of the invention are as follows：The present apparatus introduces solar tracking sensor, cleverly by mechanical transmission structure on the settled date
Mirror tracking is converted into the tracking sun, realizes the heliostat closed-loop control for not needing angular encoder and position of sun algorithm, greatly
Simplify control system greatly；And in actual installation, if the precision of spin axis alignment light target is ensure that, and gear train
Part, to the installation accuracy between day support and solar tracking sensor three after, as perpendicularity of spin axis and elevation axis etc. other peace
Dress precision can be reduced suitably, have no effect on tracking accuracy；And the gear assembly of the present apparatus, to day support and solar tracking sensor portion
Divide compact, achievable high-precision volume production, so as to also be easily guaranteed that its precision high with whole heliostat device separation degree.
It is last it is to be noted that：The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations.To the greatest extent
The present invention is described in detail with reference to the foregoing embodiments for pipe, it will be understood by those within the art that：It is still
Technical scheme described in foregoing embodiments can be modified, or which part technical characteristic is equally replaced
Change；And these modifications or replacement, the essence of appropriate technical solution is departed from the essence of various embodiments of the present invention technical scheme
God and scope.
Claims (6)
1. a kind of heliostat device based on solar tracking sensor, including solar tracking sensor, angular transition component, spin elevation angle type are determined
Solar eyepiece and controller, it is characterised in that the elevation axis that solar tracking sensor passes through angular transition component and spin elevation angle type heliostat
Connection, angular transition component make twice and the direction of rotation phase that the rotary speed of solar tracking sensor is elevation angle axle rotary speed
Together.
2. the heliostat device based on solar tracking sensor according to claim 1, it is characterised in that the angular transition component
For gear assembly, in addition to day support, solar tracking sensor is fixed on on day support, sensor to Japanese side to perpendicular to right
Plane on day support；To day support with being fixed to day support shaft gear, rotated with the rotation to day support shaft gear；Spin is faced upward
Angle-style heliostat and elevation angle shaft gear are relatively fixed, and are rotated with the rotation of elevation angle shaft gear；Gear assembly wall is fixed on spin
On axle；Gear assembly includes elevation angle shaft gear, counter gear, to day support shaft gear and gear assembly wall；It is elevation angle shaft gear, anti-
Rotating disk is identical with to day support shaft module, is separately mounted on gear assembly wall, elevation angle shaft gear and counter gear point
Degree circular diameter is equal, and to the half that day support shaft gear compound graduation circle is counter gear, elevation angle shaft gear is engaged with counter gear, passed
Dynamic ratio 1:1, counter gear engages with to day support shaft gear, gearratio 2:1.
3. the heliostat device based on solar tracking sensor according to claim 2, it is characterised in that device initially installs cooperation
Relation is：The normal vector of spin axis alignment light target, solar tracking sensor and the elevation angle type heliostat that spins all is put down with spin axis axis
OK.
4. the heliostat device based on solar tracking sensor according to Claims 2 or 3, it is characterised in that the spin axis is high
The alignment light target of precision does not change over.
5. the heliostat device based on solar tracking sensor according to claim 1, it is characterised in that the solar tracking sensor can
The high accuracy alignment sun, and the energy effective Feedback sun facilitates controller to control heliostat phase with respect to the orientation of solar tracking sensor
Answer the rotation in direction；Heliostat rotation can by micro-stepping angle stepper motor or big subtrahend than direct current generator provide
Power, motor make heliostat in both direction to rotate at a slow speed.
6. a kind of method of work of the heliostat device based on solar tracking sensor, it is characterised in that should be based on solar tracking sensor
Heliostat device reflexes to sunshine on light target during normal work in heliostat device as described in claim 1-5, control
Device constantly receives the signal of solar tracking sensor at a certain time interval, and the signal contains side of the sun with respect to solar tracking sensor
Position information, the rotation of control spin elevation angle type heliostat both direction, the sun is constantly adjusted with respect to the orientation of solar tracking sensor, is made
The sun is ultimately at the surface of solar tracking sensor, the solar tracking sensor alignment sun, reflected sunlight to light target.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710538703.3A CN107368101B (en) | 2017-07-04 | 2017-07-04 | Heliostat device based on sun tracking sensor and working method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710538703.3A CN107368101B (en) | 2017-07-04 | 2017-07-04 | Heliostat device based on sun tracking sensor and working method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107368101A true CN107368101A (en) | 2017-11-21 |
| CN107368101B CN107368101B (en) | 2020-07-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710538703.3A Expired - Fee Related CN107368101B (en) | 2017-07-04 | 2017-07-04 | Heliostat device based on sun tracking sensor and working method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107943103A (en) * | 2017-12-14 | 2018-04-20 | 夸父追日科技（武汉）有限公司 | A kind of mechanical sensor heliostat |
| CN109857154A (en) * | 2019-02-28 | 2019-06-07 | 东南大学 | Reflecting mirror sun tracing method and device in a kind of Fresnel solar-thermal generating system |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7115851B2 (en) * | 2004-08-30 | 2006-10-03 | Yaoming Zhang | Heliostat device |
| CN101236287A (en) * | 2008-02-26 | 2008-08-06 | 苏建国 | Heliostat device |
| WO2011072449A1 (en) * | 2009-12-17 | 2011-06-23 | Wang Chengwei | Heliostat device |
| CN103062931A (en) * | 2013-02-25 | 2013-04-24 | 常州市亚美电气制造有限公司 | Tower type solar heliostat bevel gear light angle switching control device |
-
2017
- 2017-07-04 CN CN201710538703.3A patent/CN107368101B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7115851B2 (en) * | 2004-08-30 | 2006-10-03 | Yaoming Zhang | Heliostat device |
| CN101236287A (en) * | 2008-02-26 | 2008-08-06 | 苏建国 | Heliostat device |
| WO2011072449A1 (en) * | 2009-12-17 | 2011-06-23 | Wang Chengwei | Heliostat device |
| CN103062931A (en) * | 2013-02-25 | 2013-04-24 | 常州市亚美电气制造有限公司 | Tower type solar heliostat bevel gear light angle switching control device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107943103A (en) * | 2017-12-14 | 2018-04-20 | 夸父追日科技（武汉）有限公司 | A kind of mechanical sensor heliostat |
| CN109857154A (en) * | 2019-02-28 | 2019-06-07 | 东南大学 | Reflecting mirror sun tracing method and device in a kind of Fresnel solar-thermal generating system |
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| Publication number | Publication date |
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| CN107368101B (en) | 2020-07-14 |
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