CN103135600A - Control system of heliostat - Google Patents
Control system of heliostat Download PDFInfo
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- CN103135600A CN103135600A CN 201110380695 CN201110380695A CN103135600A CN 103135600 A CN103135600 A CN 103135600A CN 201110380695 CN201110380695 CN 201110380695 CN 201110380695 A CN201110380695 A CN 201110380695A CN 103135600 A CN103135600 A CN 103135600A
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- 239000000428 dust Substances 0.000 claims abstract description 8
- 238000000034 method Methods 0.000 abstract description 10
- 230000008569 process Effects 0.000 abstract description 8
- 238000010248 power generation Methods 0.000 abstract description 5
- 230000008901 benefit Effects 0.000 abstract description 4
- 238000003912 environmental pollution Methods 0.000 abstract description 3
- 238000005286 illumination Methods 0.000 abstract description 3
- 238000006243 chemical reaction Methods 0.000 abstract description 2
- 238000012546 transfer Methods 0.000 abstract description 2
- 239000002803 fossil fuel Substances 0.000 abstract 1
- 230000017525 heat dissipation Effects 0.000 abstract 1
- 238000012545 processing Methods 0.000 description 5
- 238000012544 monitoring process Methods 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 238000011161 development Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 241001424688 Enceliopsis Species 0.000 description 2
- 230000002457 bidirectional effect Effects 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 230000003749 cleanliness Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- 230000005855 radiation Effects 0.000 description 1
- 230000001172 regenerating effect Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 210000003051 thermoreceptor Anatomy 0.000 description 1
- 108091008689 thermoreceptors Proteins 0.000 description 1
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Abstract
The invention relates to a control system of a heliostat. The control system of the heliostat comprises a sun position sensor, the output end of the sun position sensor is connected with a control system, the signal control output end of the control system is connected with a first double-shaft drive motor and a second double-shaft drive motor, and the first double-shaft drive motor and the second double-shaft drive motor are connected with the heliostat to drive the heliostat to deflect. The control system of the heliostat further includes a wind speed and direction sensor and an illumination sensor, the input ends of the wind speed and direction sensor and the illumination sensor are connected with the control system, and the signal control output end of the control system is connected with a dust and snow removal device which is arranged on the heliostat. The control system of the heliostat has the advantages of a large scale, a short heat transfer distance, a little heat loss, a large concentration ratio and the like, the refection of rays of the sun by the heliostat can be completed at one time during an energy concentration process, the heat dissipation area of a heat receiver is relatively small, and the photo-thermal conversion efficiency is high. Compared with conventional fossil fuel power generation, solar power generation has a broader prospect when the cost of the comprehensive treatment of environmental pollution is taken into consideration.
Description
Technical field
The present invention relates to a kind of heliostat control system.
Background technology
Along with the development of human social economy, also in continuous growth, the environmental pollution that the shortage problem that occurs in the face of natural energy resources and burning coal cause makes the mankind will face the dual-pressure that natural resources and enviroment pollutes to the mankind to the utilization factor of the energy.So, how could head it off? the relevant person has proposed to utilize the sunshine energy, and solar energy is a kind of regenerative resource of inexhaustible, environmental protection and economy.Extensive development sun power market can reduce cost of electricity-generating, is conducive to realize the harmonious development of energy and environment.
In solar light-heat power-generation the high temperature generation technology have light concentrating times high, can reach the advantage that higher temperature is conducive to steam or thermal power generation, but along with the demand of universal mankind's power consumption of electrical network increases, and the sunray energy flux density is low, radiation also has intermittence, the meeting Shortcomings, want better to utilize sun power need adopt the modes such as real-time follow-up, focusing to realize higher utilization in utilizing process.Technical taking can accomplish better sunshine to be carried out real-time follow-up and utilization to the control of heliostat, reaches better effect.。
Summary of the invention
In order to overcome above-mentioned the deficiencies in the prior art, the object of the present invention is to provide a kind of heliostat control system, has advantages of the full-automatic sun of accurately following the tracks of, utilize simultaneously concave mirror optically focused principle, on solar light focusing to a fixing heat collecting receiver, in order to produce high temperature, produce superheated vapor or high-temperature gas, the generating of driving generator, thus sun power is converted to electric energy.
To achieve these goals, the technical solution used in the present invention is:
A kind of heliostat control system, comprise sun position sensor 1, the output of sun position sensor 1 is connected to control system 4, the control signal output of control system 4 is connected to the first Two axle drive motor 5 and the second Two axle drive motor 6, the first Two axle drive motor 5 and the second Two axle drive motor 6 are connected to heliostat 7, drive heliostat 7 deflections.
Also comprise wind speed wind direction sensor 2 and illuminance sensor 3, the input of wind speed wind direction sensor 2 and illuminance sensor 3 all is connected to control system 4, and the control signal output of control system 4 is connected to the dedusting snow-removing device 8 that is arranged on heliostat 7.
Whether described dedusting snow-removing device 8 detects heliostat 7 surfaces by infrared sensor dust or accumulated snow.
described control system 4 is used for position of sun misalignment angle and the azimuth elevation signal of the 1 comprehensive monitoring of analyzing and processing sun position sensor, according to the programmable control module in control system 4, it is carried out analyzing and processing, and give the first Two axle drive motor 5 with the command transfer of processing, make it drive heliostat 7 and change the orientation, the second Two axle drive motor 6 also drives corresponding each piece concave mirror rotation simultaneously, all the time be gathered on same focus after making concave mirror according to its reflection of the different solar incident angle that collects, reach sun collecting energy large, precision is high, the advantages such as solar facula is large, the solar thermal energy temperature that makes heat collector gather is high, thereby more effectively utilize solar electrical energy generation, described sun position sensor 1 can omnibearing collection position of sun deviation signal, carry out signal by specific circuit and process and to be transferred to control system and can to feed back to the position of sun misalignment angle, and then drive the accurate tracking that the first Two axle drive motor 5 is realized the sun, wind speed and direction in described wind speed wind direction sensor 2 Real-Time Monitoring environment, notice master control system when wind speed reaches setting value, make the reflective concave surface mirror of heliostat and composition be automatically brought to horizontal level by the Two axle drive motor, make windage minimum, thus protection heliostat 7, described illuminance sensor 3 can monitoring of environmental intensity of illumination, whether control system compares with the parameter of setting after receiving signal, can judge evening on daytime or overcast and rainy, then control according to this Two axle drive motor and work, thereby reduce energy loss, described snow removing dust arrester 8 adopts independently, and sensor and physical construction combine, can automatically detect dust and the accumulated snow on heliostat 7 surfaces, and testing result is delivered to master control system, in the situation that the master control system Rule of judgment allows to utilize the mechanical hook-up dust removal operation that removes the snow.
In described control system, programmable module is to utilize bidirectional variable radius-of-curvature method, the sunray incident angle that can process different light beams is fixed on same focus its reflection angle all the time, calculate by geometry, when the sunlight on inciding minute surface is focused at focus ideally, R
1Should satisfy following formula:
Finding the solution (1) formula can obtain corresponding to difference
The best R of value
1Value.Equally, in the situation that fixed-focus have:
From (1) and (2) formula as can be known, in the solar motion process, guarantee that catoptron focuses at the focus place all the time will adjust with the variation of solar incident angle R constantly
1And R
2Size, and R
1And R
2Variation tendency be to work as R
1R during increase
2Reduce, vice versa.
Described master control system adopts the mode of double-axis tracking to control the operation of the heliostat to automatically follow sun, tracking error can be reduced to minimum;
Wind speed and direction in described wind speed wind direction sensor Real-Time Monitoring environment, notice master control system when wind speed reaches setting value;
Utilize the heliostat group of the independently tracked sun, on solar light focusing to a fixing heat collector receiver, in order to produce high temperature, produce superheated vapor or high-temperature gas, drive the generator generating, thereby sun power is converted to electric energy.
In a word, this system has that scale is large, heat transmits that distance is short, thermal losses is few, optically focused is than the characteristics such as large, once complete by the heliostat sunlight reflection in the concentration of energy process, and thermoreceptor area of dissipation less, photo-thermal conversion efficiency is higher.The cost of comprehensive regulation environmental pollution is compared with conventional fossil energy generating, and the solar electrical energy generation prospect is more wide.
Description of drawings
Fig. 1 is structured flowchart of the present invention.
Fig. 2 is bidirectional variable radius-of-curvature method schematic diagram.
Embodiment
Describe embodiments of the present invention in detail below in conjunction with drawings and Examples.
The present invention includes sun position sensor 1, control system 4, wind speed wind direction sensor 2, illuminance sensor 3, snow removing dust arrester 8, the first Two axle drive motor 5, the second Two axle drive motor 6,7 eight ingredients of heliostat with reference to Fig. 1.
photo-thermal energy acquisition in the solar light-heat power-generation process is according to sun position sensor 1, wind speed wind direction sensor 2, illuminance sensor 3 gathers the solar azimuth drift angle by tracking, the situations such as amblent air temperature variation are carried out the real-time follow-up collection signal to the sun, the signal that collects is transferred to control system 4, control system 4 is controlled programmable module by it it is carried out analyzing and processing, control system 4 is passed through order to the first Two axle drive motor 5 and the second Two axle drive motor 6 with the situation of analyzing and processing, make it drive the deflection of heliostat 7 and concave mirror, controlling reflection ray by change heliostat 7 deflection angles is gathered on same focus, control system can also detect the cleanliness on heliostat surface simultaneously, removing 8 pairs of dust arresters heliostat 7 surfaces by snow removing processes.
The above; only embodiments of the invention; be not that the present invention is imposed any restrictions, every any simple modification, change and equivalent structure of above embodiment being done according to the technology of the present invention essence changes, and all still belongs in the protection domain of technical solution of the present invention.
Claims (3)
1. heliostat control system, comprise sun position sensor (1), it is characterized in that: the output of sun position sensor (1) is connected to control system (4), the control signal output of control system (4) is connected to the first Two axle drive motor (5) and the second Two axle drive motor (6), the first Two axle drive motor (5) and the second Two axle drive motor (6) are connected to heliostat (7), drive heliostat (7) deflection.
2. heliostat control system according to claim 1, it is characterized in that: also comprise wind speed wind direction sensor (2) and illuminance sensor (3), the input of wind speed wind direction sensor (2) and illuminance sensor (3) all is connected to control system (4), and the control signal output of control system (4) is connected to the dedusting snow-removing device (8) that is arranged on heliostat (7).
3. heliostat control system according to claim 2 is characterized in that: whether described dedusting snow-removing device (8) detects heliostat (7) surface by infrared sensor dust or accumulated snow.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110380695 CN103135600A (en) | 2011-11-25 | 2011-11-25 | Control system of heliostat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110380695 CN103135600A (en) | 2011-11-25 | 2011-11-25 | Control system of heliostat |
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| CN103135600A true CN103135600A (en) | 2013-06-05 |
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| CN 201110380695 Pending CN103135600A (en) | 2011-11-25 | 2011-11-25 | Control system of heliostat |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103713648A (en) * | 2013-12-25 | 2014-04-09 | 青海中控太阳能发电有限公司 | Heliostat control method |
| CN107834149A (en) * | 2017-10-27 | 2018-03-23 | 合肥因艾信息科技有限公司 | A kind of adaptive parabola antenna snow removal system of wind speed and direction |
| WO2018153233A1 (en) * | 2017-02-24 | 2018-08-30 | 江苏中信博新能源科技股份有限公司 | Concentrated solar power generation system and power generation method |
| CN110467299A (en) * | 2019-08-28 | 2019-11-19 | 王旭 | Smart city roof hydroelectric integration processing unit |
-
2011
- 2011-11-25 CN CN 201110380695 patent/CN103135600A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103713648A (en) * | 2013-12-25 | 2014-04-09 | 青海中控太阳能发电有限公司 | Heliostat control method |
| CN103713648B (en) * | 2013-12-25 | 2016-09-28 | 青海中控太阳能发电有限公司 | A kind of heliostat control method |
| WO2018153233A1 (en) * | 2017-02-24 | 2018-08-30 | 江苏中信博新能源科技股份有限公司 | Concentrated solar power generation system and power generation method |
| CN107834149A (en) * | 2017-10-27 | 2018-03-23 | 合肥因艾信息科技有限公司 | A kind of adaptive parabola antenna snow removal system of wind speed and direction |
| CN110467299A (en) * | 2019-08-28 | 2019-11-19 | 王旭 | Smart city roof hydroelectric integration processing unit |
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Application publication date: 20130605 |