CN106642749B - A kind of trough type solar heat-collector and its position sensor based on grid optoelectronic induction effect - Google Patents
A kind of trough type solar heat-collector and its position sensor based on grid optoelectronic induction effect Download PDFInfo
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- CN106642749B CN106642749B CN201710022907.1A CN201710022907A CN106642749B CN 106642749 B CN106642749 B CN 106642749B CN 201710022907 A CN201710022907 A CN 201710022907A CN 106642749 B CN106642749 B CN 106642749B
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- grid
- optoelectronic induction
- collector
- hot spot
- solar heat
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S50/00—Arrangements for controlling solar heat collectors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S50/00—Arrangements for controlling solar heat collectors
- F24S50/20—Arrangements for controlling solar heat collectors for tracking
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/40—Solar thermal energy, e.g. solar towers
- Y02E10/47—Mountings or tracking
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Photometry And Measurement Of Optical Pulse Characteristics (AREA)
Abstract
The invention belongs to position sensor technical fields, more particularly to a kind of trough type solar heat-collector position sensor based on grid optoelectronic induction effect, including two-sided grid photoelectric sensor, current/voltage amplifier, data acquisition and procession device, microcontroller and external plug, the two-sided grid photoelectric sensor is connect by the microcontroller with the current/voltage amplifier, and the current/voltage amplifier is connect by the data acquisition and procession device with the external plug.Compared with the existing technology, the present invention is based on grid optoelectronic induction effects, the direct real-time hot spot distribution character of focal plane measures and back analysis, and compare and analyze calculating with theoretical hot spot, calculate real time position deviation, the tracking strategy for obtaining heat collector avoids influence of the extraneous factor to tracking accuracy, improves systematic tracking accuracy.
Description
Technical field
The invention belongs to position sensor technical field more particularly to a kind of slot types based on grid optoelectronic induction effect too
Positive energy heat collector and its position sensor.
Background technology
Currently, the position sensing of slot light collection heat collector, main includes turning using obliquity sensor, using pulse or motor
Momentum is the methods of accumulative.The position sensor can provide control signal for the tracing control of groove type heat collector transmission system.Its
In the angle of inclination of heat collector is measured based on the obliquity sensor of capacitive technologies, and simultaneously by position of sun to mesh
Mark angle is calculated, and by the difference of current location and target angle compare and determine the direction of motion and the movement of driver
Amount, to realize tracking of the concentrator to the sun, obliquity sensor used in this method by system periphery electromagnetic environmental impact compared with
Greatly, therefore heat collector tracking accuracy can be influenced.Based on the accumulative heat collector tracking mode of pulse and amount of motor rotation, then exist
The problems such as electricity memory loss, accumulated error, tracking accuracy is not high.
In view of this, it is necessory to provide a kind of trough type solar heat-collector based on grid optoelectronic induction effect and its position
Sensor is set, grid optoelectronic induction effect is based on, the direct real-time hot spot distribution character of focal plane measures and inverting point
Analysis, and calculating is compared and analyzed with theoretical hot spot, real time position deviation is calculated, the tracking strategy of heat collector is obtained, avoids
Influence of the extraneous factor to tracking accuracy improves systematic tracking accuracy.
Invention content
It is an object of the present invention to：In view of the deficiencies of the prior art, it proposes a kind of based on grid optoelectronic induction effect
The trough type solar heat-collector position sensor answered is based on grid optoelectronic induction effect, the direct real-time hot spot of focal plane point
Cloth characteristic measures and back analysis, and compares and analyzes calculating with theoretical hot spot, calculates real time position deviation, is collected
The tracking strategy of hot device avoids influence of the extraneous factor to tracking accuracy, improves systematic tracking accuracy.
In order to achieve the above object, the present invention adopts the following technical scheme that：
A kind of trough type solar heat-collector position sensor based on grid optoelectronic induction effect, including two-sided grid photoelectricity
Inductor, current/voltage amplifier, data acquisition and procession device, microcontroller and external plug, the two-sided grid light inductance
Device is answered to be connect with the current/voltage amplifier by the microcontroller, the current/voltage amplifier passes through the data
Acquisition is connect with processor with the external plug.
As the present invention is based on a kind of improvement of the trough type solar heat-collector position sensor of grid optoelectronic induction effect,
The two-sided grid photoelectric sensor includes upper layer optoelectronic induction face, lower layer's optoelectronic induction face and is set to the upper layer light inductance
Answer the insulated thermal insulating layer between face and lower layer's optoelectronic induction face, upper layer optoelectronic induction face and lower layer's optoelectronic induction
Face is arranged by several grid points, and each grid point is independently by microcontroller connecting wire beam and described micro-
Controller is connected with the current/voltage amplifier, and voltage and current array signal is provided for the data acquisition and procession device.
As the present invention is based on a kind of improvement of the trough type solar heat-collector position sensor of grid optoelectronic induction effect,
The grid point at the point midway of the two-sided grid photoelectric sensor is zero-bit grid, centered on the zero-bit grid
Width be D grid region form hot spot core space, the both sides of the hot spot core space be respectively formed left hot spot epitaxial region and
Right hot spot epitaxial region.
As the present invention is based on a kind of improvement of the trough type solar heat-collector position sensor of grid optoelectronic induction effect,
The width of the left hot spot epitaxial region and the right hot spot epitaxial region is all higher than D.
As the present invention is based on a kind of improvement of the trough type solar heat-collector position sensor of grid optoelectronic induction effect,
The model C8051FO2O of the microcontroller.
As the present invention is based on a kind of improvement of the trough type solar heat-collector position sensor of grid optoelectronic induction effect,
The material of the insulated thermal insulating layer is ceramic fibre, glass fibre, asbestos or rock wool.
Compared with the existing technology, in the present invention, two-sided grid photoelectric sensor induction is incident upon the light intensity on its surface, and leads to
It crosses photoelectric effect and is converted into electric current (voltage) signal, the current and voltage signals from each grid point are transferred to current/voltage and put
Big device, and hot spot distribution situation is obtained by the processing of data acquisition and procession device and inverting, it is distributed according to the hot spot for calculating gained
The deviation of feature and the lower hot spot distribution characteristics of accurate tracking, calculates the direction of motion and motion compensation quantity of transmission system, and defeated
Go out to control model to drive apparatus, driving heat collector to target location.That is, the present invention is real-time by direct focal plane
Hot spot distribution character measures and back analysis, and compares and analyzes calculating with theoretical hot spot, calculates real time position deviation,
The tracking strategy for obtaining heat collector avoids influence of the extraneous factor to tracking accuracy, improves systematic tracking accuracy.
It is another object of the present invention to provide a kind of trough type solar heat-collector based on grid optoelectronic induction effect,
Including slot-type optical collector main body and the position sensor being installed in the slot-type optical collector main body, the position sensor is this
The invention trough type solar heat-collector position sensor based on grid optoelectronic induction effect, and the two-sided grid light
Electric inductor is installed on the focal plane of the slot-type optical collector main body and is put down with the plane of the opening of the slot-type optical collector main body
Row.
As the present invention is based on a kind of improvement of the trough type solar heat-collector of grid optoelectronic induction effect, the two-sided grid
The upper layer optoelectronic induction of lattice photoelectric sensor faces outwardly, and lower layer's optoelectronic induction of the two-sided grid photoelectric sensor is facing towards institute
State the reflecting surface of slot-type optical collector main body.
As the present invention is based on a kind of improvement of the trough type solar heat-collector of grid optoelectronic induction effect, the zero-bit grid
The installation site of lattice is overlapped with the axis of the slot-type optical collector main body, and the hot spot core space is also associated with endothermic tube.
The heat collector of the present invention, can be to avoid extraneous factor to tracking as a result of position sensor of the present invention
The influence of precision improves systematic tracking accuracy, improves the accuracy of concentrator tracking, and reduces angle measurement class sensor
The problems such as being caused tracking accuracy not high by external environmental interference and signal fluctuation.
Description of the drawings
Fig. 1 is the structural schematic diagram of the embodiment of the present invention 1.
Fig. 2 is the structure principle chart of two-sided grid photoelectric sensor in the embodiment of the present invention 1.
Fig. 3 is the vertical view of the schematic diagram of two-sided grid photoelectric sensor in the embodiment of the present invention 1.
Fig. 4 is the structural schematic diagram of the embodiment of the present invention 2.
Specific implementation mode
The present invention and advantage are described in further detail below with reference to specific embodiment, still, this hair
Bright specific implementation mode is not limited to this.
Embodiment 1
As shown in Figure 1 to Figure 3, a kind of trough type solar heat-collector based on grid optoelectronic induction effect provided by the invention
Position sensor, including two-sided grid photoelectric sensor 1, current/voltage amplifier 4, data acquisition and procession device 3, microcontroller
Device 5 and external plug 2, two-sided grid photoelectric sensor 1 are connect by microcontroller 5 with current/voltage amplifier 4, electric current/electricity
Pressure amplifier 4 is connect by data acquisition and procession device 3 with external plug 2.
Two-sided grid photoelectric sensor 1 incudes the light intensity for being incident upon its surface, and is converted into electric current (electricity by photoelectric effect
Pressure) signal, the current and voltage signals from each grid point 11 are transferred to current/voltage amplifier 4, and by data acquisition with
The processing of processor 3 and inverting acquisition hot spot distribution situation, control strategy is provided for drive system.External plug 2 acquires for data
The jointing that signal transmission is carried out with processing module 3 and driving control system, is designed according to communication protocol and mode.Number
According to the model TMS320 of acquisition and processing module 3.
Two-sided grid photoelectric sensor 1 includes upper layer optoelectronic induction face 6, lower layer's optoelectronic induction face 9 and is set to upper layer light
Insulated thermal insulating layer 7 between electric induction face 6 and lower layer's optoelectronic induction face 9, i.e., two-sided grid photoelectric sensor 1 have sandwich knot
Structure, insulated thermal insulating layer 7 can be interfered to avoid the electric current (voltage) between two layers, upper layer optoelectronic induction face 6 and lower layer's optoelectronic induction face 9
It is arranged by several grid points 11, each grid point 11 can incude the light intensity of irradiation on it, and be converted to electric current (electricity
Pressure) signal, each grid point 11 is independently by microcontroller connecting wire beam 8 and microcontroller 5 and current/voltage amplifier
4 are connected, and voltage and current array signal is provided for data acquisition and procession device 3.Upper layer optoelectronic induction face 6, lower layer's optoelectronic induction face 9
It is shaped like narrow grid type optoelectronic induction material (such as polypyrrole, polyphenylene sulfide, polyaniline, polythiophene), upper layer optoelectronic induction face 6
It is directly facing the sun, solar irradiation situation under the conditions of test is non-concentrating, 9 reflection towards slot-type optical collector of lower layer's optoelectronic induction face
Face emits distribution characteristics of the light on different location to concentrator by grid photoelectric sensor 1 and tests.Each grid point
11 width is required according to measuring accuracy and processing technology is determined, and reduces raster width, can promote the discretization of hot spot
Quantity, and improving measurement accuracy.
Grid point at the point midway of two-sided grid photoelectric sensor 1 is zero-bit grid 10, in being with zero-bit grid 10
The grid region that the width of the heart is D forms hot spot core space 13, and the both sides of hot spot core space 13 are respectively formed left hot spot epitaxial region
12 and right hot spot epitaxial region 14.Left hot spot epitaxial region 12 and right hot spot epitaxial region 14 are for judging that actual facula deviates core space 13
Calculating check area.
The width of left hot spot epitaxial region 12 and right hot spot epitaxial region 14 is all higher than D, to meet two-sided grid photoelectric sensor 1
Capture to hot spot and the judgement to beam pattern and position.
The model C8051FO2O of microcontroller.The microcontroller of the model has the following advantages：64 I/O mouthfuls, high speed,
Pipeline organization, at full speed, the system debug interface of non-intrusion type, 88 channel ADC, band PGA and analog multichannel switch, two 12
Position DAC has programmable data update mode, and the external data memory interface in addressable 64K byte addresses space, 5 logical
16 be locator, has programmable counter/Timer Array of 5 capture/comparison modules, and it is fixed to be provided with house dog
When device, VDD monitors and temperature sensor.
The material of insulated thermal insulating layer 7 is ceramic fibre, glass fibre, asbestos or rock wool.
The current signal of acquisition is amplified by current/voltage amplifier 4, passes to data acquisition and procession device 3, data
Acquisition calculates the current distribution of each grid point 11 on two-sided grid photoelectric sensor 1 with processor 3, and passes through integral
It calculates, the hot spot on two-sided 1 surface of grid photoelectric sensor is distributed and carries out inverting with position, analyze current hot spot and current theory
The difference in distribution and hot spot core space 13 of hot spot can flow accounting etc., and pursuit movement strategy is provided for transmission system.The present invention is straight
It connected hot spot distributional analysis and obtains heat collector tracking strategy, and improved the accuracy of concentrator tracking, and reduce angle survey
The problems such as amount class sensor is caused tracking accuracy not high and signal fluctuation by external environmental interference.
Embodiment 2
Present embodiments provide a kind of trough type solar heat-collector based on grid optoelectronic induction effect, including slot light collection
Device main body 17 and the position sensor being installed in slot-type optical collector main body 17, position sensor are the present invention based on grid light
The trough type solar heat-collector position sensor of electric induction effect, and two-sided grid photoelectric sensor 1 is installed on slot light collection
It is on the focal plane of device main body 17 and parallel with the plane of the opening of slot-type optical collector main body 17 18.
The upper layer optoelectronic induction face 6 of two-sided grid photoelectric sensor 1 outwardly, faces the sun, obtains real-time surface sun spoke
According to amount, the solar irradiation for testing current tilt angle bottom incline can assess current solar irradiation situation,
And the reference criterion with the 9 hot spot distributional analysis of lower layer's optoelectronic induction face is formulated as heat collector tracking strategy, parameter can be used
Can be checked and being corrected in the concentrator flare distribution characteristics that lower layer's optoelectronic induction face 9 obtains calculates, improves
Sensor accuracy.It is also possible to according to the power of lateral surface inductor overall signal, judgement is when light condenser position and target position
Offset direction when deviateing farther out is set, judges the gap and moving direction of current heat collector tracing positional and target location.It is two-sided
Reflecting surface of the lower layer's optoelectronic induction face 9 of grid photoelectric sensor 1 towards slot-type optical collector main body 17.Lower layer's optoelectronic induction face 9
Concentrator reflection light is intercepted and captured, the reflection light of the reflecting surface from slot-type optical collector main body 17, slot-type optical collector main body are received
The reflection light of 17 reflecting surface forms hot spot, the electricity of each grid point 11 in lower layer's optoelectronic induction face 9 in lower layer's optoelectronic induction face 9
Stream voltage signal has directly reacted the light intensity situation at the node, and data acquisition and procession device 3, which receives, comes from lower layer's optoelectronic induction
The current and voltage signals of 9 discretization of face can be worked as light distribution situation and position on front focal plane with inverting, and combine current reason
By the feature of hot spot, the gap of heat collector current location and ideal position is calculated, and tracking actuating signal is sent out to transmission system,
Heat collector is adjusted to rotate to target location.
The installation site of zero-bit grid 10 is overlapped with the axis of slot-type optical collector main body 17, and hot spot core space 13 is also associated with
Endothermic tube 15.
Under photoelectric action, each grid point 11 realizes that electric current (voltage) exports, and passes through electric current (voltage) amplifier
It is conveyed to data acquisition and procession device 3, data acquisition and procession device 3 obtains electric current (voltage) signal of 11 position of each grid, and
The hot spot distribution characteristics being finally inversed by focal plane, it is special according to the hot spot distribution characteristics and the lower hot spot distribution of accurate tracking that calculate gained
The deviation of sign, calculates the direction of motion and motion compensation quantity of transmission system, and exports control model to drive apparatus, driving collection
Hot device is to target location.
The heat collector of the present invention, can be to avoid extraneous factor to tracking accuracy as a result of the position sensor of the present invention
Influence, improve systematic tracking accuracy, improve the accuracy of concentrator tracking, and reduce angle measurement class sensor by outer
Boundary's environmental disturbances and the problems such as cause tracking accuracy not high and signal fluctuation.
According to the disclosure and teachings of the above specification, those skilled in the art in the invention can also be to above-mentioned embodiment party
Formula carries out change and modification appropriate.Therefore, the invention is not limited in specific implementation modes disclosed and described above, to this
Some modifications and changes of invention should also be as falling into the scope of the claims of the present invention.In addition, although this specification
In used some specific terms, these terms are merely for convenience of description, does not limit the present invention in any way.
Claims (8)
1. a kind of trough type solar heat-collector position sensor based on grid optoelectronic induction effect, which is characterized in that including double
Face grid photoelectric sensor, current/voltage amplifier, data acquisition and procession device, microcontroller and external plug, it is described two-sided
Grid photoelectric sensor is connect by the microcontroller with the current/voltage amplifier, and the current/voltage amplifier is logical
The data acquisition and procession device is crossed to connect with the external plug；The two-sided grid photoelectric sensor includes upper layer light inductance
Answer face, lower layer's optoelectronic induction face and the insulation that is set between upper layer optoelectronic induction face and lower layer's optoelectronic induction face every
Thermosphere, upper layer optoelectronic induction face are arranged with lower layer's optoelectronic induction face by several grid points, each described
Grid point is connected independently by microcontroller connecting wire beam and the microcontroller with the current/voltage amplifier, is
The data acquisition and procession device provides voltage and current array signal.
2. the trough type solar heat-collector position sensor according to claim 1 based on grid optoelectronic induction effect,
It is characterized in that, the grid point at the point midway of the two-sided grid photoelectric sensor is zero-bit grid, with the zero-bit
The grid region that width centered on grid is D forms hot spot core space, and the both sides of the hot spot core space are respectively formed left light
Spot epitaxial region and right hot spot epitaxial region.
3. the trough type solar heat-collector position sensor according to claim 2 based on grid optoelectronic induction effect,
It is characterized in that, the width of the left hot spot epitaxial region and the right hot spot epitaxial region is all higher than D.
4. the trough type solar heat-collector position sensor according to claim 1 based on grid optoelectronic induction effect,
It is characterized in that, the model C8051FO2O of the microcontroller.
5. the trough type solar heat-collector position sensor according to claim 1 based on grid optoelectronic induction effect,
It is characterized in that, the material of the insulated thermal insulating layer is ceramic fibre, glass fibre, asbestos or rock wool.
6. a kind of trough type solar heat-collector based on grid optoelectronic induction effect, which is characterized in that including slot-type optical collector master
Body and the position sensor being installed in the slot-type optical collector main body, the position sensor are any one of claim 1 to 5
The trough type solar heat-collector position sensor based on grid optoelectronic induction effect, and the two-sided grid light inductance
Device is answered to be installed on the focal plane of the slot-type optical collector main body and parallel with the plane of the opening of slot-type optical collector main body.
7. the trough type solar heat-collector according to claim 6 based on grid optoelectronic induction effect, which is characterized in that institute
The upper layer optoelectronic induction for stating two-sided grid photoelectric sensor faces outwardly, lower layer's optoelectronic induction of the two-sided grid photoelectric sensor
Facing towards the reflecting surface of the slot-type optical collector main body.
8. the trough type solar heat-collector according to claim 6 based on grid optoelectronic induction effect, which is characterized in that institute
The grid point stated at the point midway of two-sided grid photoelectric sensor is zero-bit grid, centered on the zero-bit grid
The grid region that width is D forms hot spot core space, the installation site of the zero-bit grid and the slot-type optical collector main body
Axis overlaps, and the hot spot core space is also associated with endothermic tube.
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| CN201710022907.1A CN106642749B (en) | 2017-01-12 | 2017-01-12 | A kind of trough type solar heat-collector and its position sensor based on grid optoelectronic induction effect |
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| CN113298762B (en) * | 2021-05-07 | 2022-08-02 | 威海世高光电子有限公司 | flare detection method |
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| CN2205525Y (en) * | 1994-02-25 | 1995-08-16 | 北京有色金属研究总院 | Automatic tracing device for solar energy collector |
| CN1335471A (en) * | 2000-07-26 | 2002-02-13 | 青岛大学 | Automatic sun tracking method for heat collector in solar water heater |
| ES2404671B1 (en) * | 2011-10-18 | 2014-04-07 | Soltec Energías Renovables, S.L. | ORIENTATION METHOD FOR NON-VERTICAL ROTARY AXIS SOLAR COLLECTORS. |
| CN102968130A (en) * | 2012-11-22 | 2013-03-13 | 宁夏光合能源科技有限公司 | Opened/closed-loop control heliostat with real-time reflected light spot position adjusting function |
| CN206504490U (en) * | 2017-01-12 | 2017-09-19 | 广东五星太阳能股份有限公司 | A kind of trough type solar heat-collector and its position sensor based on grid optoelectronic induction effect |
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