CN103471265B - Sunlight directional reflection control device based on time-sharing competition mechanism and control method thereof - Google Patents
Sunlight directional reflection control device based on time-sharing competition mechanism and control method thereof Download PDFInfo
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- CN103471265B CN103471265B CN201310361245.2A CN201310361245A CN103471265B CN 103471265 B CN103471265 B CN 103471265B CN 201310361245 A CN201310361245 A CN 201310361245A CN 103471265 B CN103471265 B CN 103471265B
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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
- 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
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Abstract
The invention discloses a sunlight directional reflection control device based on a time-sharing competition mechanism and a control method thereof. The sunlight directional reflection control device comprises a reflecting mirror (5), sensor modules (4), a reflecting mirror fixing bracket (7), a tracking action module (8) and a support module (9), wherein two sensor modules (4) are provided and are symmetrically fixed on the reflecting mirror fixing bracket (7); the reflecting mirror (5) is arranged at the middle position of the reflecting mirror fixing bracket (7); the output ends of the sensor modules (4) are connected with the input end of the tracking action module (8); the support module (9) is connected with the reflecting mirror fixing bracket (7) through the tracking action module (8), and is used for supporting the entire device; each sensor module (4) consists of a plurality of sensors (4.1) and a shell (4.2); the sensors (4.1) are arranged on the outer side of the shell (4.2). The device has the advantages of low difficulty in installing, using flexibility, easiness in controlling, fixed reflection accuracy and no accumulation error; when the device is moved or the position is adjusted, the directional reflection of sunlight is not influenced.
Description
Technical field
The present invention relates to the sunlight directional reflection control device based on timesharing competition mechanism and control method.
Background technology
Along with world energy sources crisis is further serious; solar light-heat power-generation more and more comes into one's own; its generation mode is mainly divided into dish-style, slot type and tower three kinds; as compared to the hot generation mode of slot type and disc type solar energy, tower type solar energy thermal power generation has the technical advantages such as concentration degree is high, concentration magnification is high, capacity extensions cost is low.Tower type solar generating is by organizing heliostat and the sunlight of different directions incidence reflexes in fixing tower heat collector by tracking system more, then is electric energy by the thermal power transfer of collection.The efficiency that sunlight is reflexed to heat collector by sunlight orienting reflex device directly affects the generating efficiency of tower type solar electricity generation system.
Current tower type solar generating orienting reflex device has multiple control modes, and wherein adopt close-loop control mode more, whether so-called close-loop control mode is the direction by detecting light reflection is required direction, controls tracking means motion.As application number 200620084631.7 " from the motion tracking orienting reflex solar boiler " announced, it is compared by the position of detection of reflected angular and required reflection, controls tracking system and follows the trail of; " automatically controlling orienting reflex solar energy collecting and photothermal conversion device " that application number 00134939.2 is announced, it is the direction controlling tracking system by detection of reflected light, although the device orienting reflex precision of these close-loop control modes is high, but the installation site of reflection unit and sensor is fixing, once the position of device or sensor changes, cannot complete reflection, this is concerning large-scale tower power plant, equipment installation difficulty is large, and installation cost is high.
And for example application number 201110041874.8 " a kind of heliostat tracking means for tower type solar energy thermal power generation station " announced, controls tracking structure by the signal of the reverberation being fixed on the camera group shooting on tower-type heat collector and realizes reflection; " heliostat tracing control device at tower type solar energy thermal power generation station " that application number 201120041047.4 is announced also is that the reverberation direction signal that the video camera by being fixed on heat collector photographs controls adjustment tracking means realization reflection; " sun tracker equipment and system " that application number 201080042011.6 is announced, then by being arranged on the imaging device following the trail of mechanism center, the mode obtaining reverberation direction whether identical with target direction has controlled tracking.Adopt the device of this kind of close-loop control mode, its imaging/camera head is positioned on heat collector or reflection unit, and structure is not by the impact of sensor, and tracking accuracy is high, but this apparatus control system is complicated, and control program will calculate each imaging device, and amount of calculation is large.
In addition, also have in existing control mode and adopt open loop program controlled mode, so-called open loop programme-control is the angle utilizing program computation each moment sun every day, calculate the angle of speculum again, control tracking means and complete reflection, or the position of the sun is detected by sensor, calculate the orientation at place when reflective mirror reflects light to fixed position again, control tracking system and complete tracking, but these two kinds of mode calculation of complex, to the given fixing control program of the reflection unit of different installation site, and the former easily produces cumulative errors, cause reflection low precision or reflect unsuccessfully.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, there is provided a kind of installation difficulty little, use flexibly, control simply based on sunlight directional reflection control device and the control method of timesharing competition mechanism, its reflection precision is fixed, produce without cumulative errors, when device move or position adjustment time, its orienting reflex to sunlight can not be affected.
The object of the invention is to be achieved through the following technical solutions: based on the sunlight directional reflection control device of timesharing competition mechanism, it comprises target signal source, speculum, sensor assembly, speculum fixed support, follow the tracks of action module and supporting module, sensor assembly is two, two sensor assembly symmetries be fixed on speculum fixed support, speculum is fixed on the support bracket fastened centre position of speculum, the signal output part of sensor assembly is connected with the control signal input following the tracks of action module, control the tracking action following the tracks of action module, supporting module connects speculum fixed support by following the tracks of action module, support whole device, target signal source for launch echo signal and receive speculum reflection incident sunlight.Described sensor assembly is made up of one or more sensor and housing, and one or more sensor is installed on hull outside respectively.
Sensor on described sensor assembly (4) is sunlight sensor or echo signal sensor, and sunlight sensor is arranged on one of them sensor assembly, and echo signal sensor setting is on another sensor assembly.Sunlight sensor is identical with echo signal sensor construction, and sunlight sensor is for detecting the angle of incident sunlight and speculum normal, and echo signal sensor is for detecting the angle of echo signal and speculum normal.
Described echo signal comprises microwave and radio wave.Described speculum is level crossing.
Described control signal is angle signal, and the tracking action following the tracks of action module is controlled by the size of angle signal: 1. when angle signal is large, and the tracking action following the tracks of action module is large; 2. when the angle signal hour of input, the tracking action following the tracks of action module is little; 3. when sunlight sensor is identical with the angle signal that echo signal sensor exports or differ be less than setting value time, follow the tracks of action module quit work.
Based on the sunlight directional reflection control method of timesharing competition mechanism, it comprises the steps:
The first step: judge the signal source of its correspondence and the angle of speculum normal respectively by sunlight sensor or echo signal sensor, and export control signal according to angle signal, control to follow the tracks of action module to the motion of this signal source and the angle of angle proportion relation;
Second step: the angle being judged another signal source and normal by another sensor assembly, same output control signal, control to follow the tracks of action module to the motion of this signal source and the angle of the proportional relation of angle signal, the angle that two sensors module controls to follow the tracks of action module motion is identical with proportionate relationship formed by angle signal;
3rd step: action described in the circulation first step successively and second step, until when the angle signal that exports of two sensor assemblies is identical or difference is less than setting value, follows the tracks of action module and quit work.
The invention has the beneficial effects as follows:
(1) sensor assembly is arranged on and follows the tracks of on action module, and sensor assembly is followed and followed the tracks of action module motion, adds flexibility and the uniformity of device;
(2) follow the tracks of action module alternately to be controlled by sunlight sensor and echo signal sensor, tracking action module is made to drive speculum alternately to sunlight signal source and echo signal source movement, realize the working method of timesharing competition, and then simplify control program, calculate simple;
(3) sensor setting is on tracking action module, and adopt the real-time detection mode of open loop, orienting reflex precision is fixed, and avoids the generation of accumulated error, and reflection precision is high;
(4) can install optional position in heliostat field, when device move or position adjustment time, do not affect its orienting reflex to sunlight.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is the sensor assembly of cube structure;
Fig. 3 is the sensor assembly of multiedge cylinder structure;
Fig. 4 is the tracking action module of rotary luffing structure;
Fig. 5 is the tracking action module of parallel two axle construction;
Fig. 6 is the tracking action module of parallel multi-shaft structure;
In figure, 1-incident sunlight, 2-target signal source, 3-echo signal, 4-sensor assembly, 4.1-sensor, 4.2-housing, the housing of 4.2a-cube structure, the housing of 4.2b-multiedge cylinder structure, 5-speculum, 6-incident sunlight signal source, 7-speculum fixed support, 8-follows the tracks of action module, 8a1-pitching unit, 8a2-rotary unit, 8b1-central supported unit, the parallel two axle tracking axis of 8b2-, 8c1-parallel multi-shaft tracking axis, 9-supporting module.
Detailed description of the invention
Below in conjunction with drawings and Examples, technical scheme of the present invention is described in further detail, but protection scope of the present invention is not limited to the following stated.
As shown in Figure 1, based on the sunlight directional reflection control device of timesharing competition mechanism, it comprises target signal source 2, speculum 5, sensor assembly 4, speculum fixed support 7, follow the tracks of action module 8 and supporting module 9, sensor assembly 4 is two, two sensor assembly 4 symmetries be fixed on speculum fixed support 7, speculum 5 is fixed on the centre position of speculum fixed support 7, the signal output part of sensor assembly 4 is connected with the control signal input following the tracks of action module 8, alternately control the tracking action following the tracks of action module 8, realize the working method of following the tracks of action module 8 timesharing, tracking action module 8 is made to drive speculum 5 to move alternately to incident sunlight signal source 6 and target signal source 2, realize competition, repeatedly after periodic duty, incident sunlight 1 orienting reflex is to the position of target signal source 2 the most at last.Supporting module 9 connects speculum fixed support 7 by following the tracks of action module 8, supports whole device, and target signal source 2 is for launching echo signal 3 and receiving the incident sunlight 1 that speculum 5 reflects.Described sensor assembly 4 is made up of one or more sensor 4.1 and housing 4.2, and one or more sensor 4.1 is installed on outside housing 4.2 respectively.
Sensor 4.1 on described sensor assembly 4 is sunlight sensor or echo signal sensor, and sunlight sensor is arranged on one of them sensor assembly 4, and echo signal sensor setting is on another sensor assembly 4.Sunlight sensor is identical with echo signal sensor construction, functional similarity, sunlight sensor is for detecting the angle of incident sunlight 1 and speculum 5 normal, and export corresponding angle signal to tracking action module 8, echo signal sensor for detecting the angle of echo signal 3 and speculum 5 normal, and exports corresponding angle signal to tracking action module 8.
Work alone under following the tracks of the control of the angle signal that action module 8 is exported at sunlight sensor and echo signal sensor respectively by the mode of time-sharing work, and the tracking action following the tracks of action module 8 is controlled by the size of angle signal: 1. when angle signal is large, the tracking action following the tracks of action module 8 is large, 2. when the angle signal hour of input, the tracking action following the tracks of action module 8 is little, 3. when sunlight sensor detects the angle signal of incident sunlight 1 and speculum 5 normal, control circuit controls to follow the tracks of the angle of action module 8 to incident sunlight 1 direction motion correspondence, when echo signal sensor detects the angle signal of echo signal 3 and speculum 5 normal, control circuit controls to follow the tracks of the angle of action module 8 to echo signal 3 direction motion correspondence, repeatedly after periodic duty, when sunlight sensor is identical with the angle signal that echo signal sensor exports or differ be less than setting value time, follow the tracks of action module 8 to quit work, realize the position of incident sunlight 1 orienting reflex to target signal source 2.
Described echo signal 3 comprises microwave and radio wave.Described speculum 5 is level crossing, can improve the reflection efficiency of incident sunlight orienting reflex device.
The functional realiey of sensor assembly is illustrated below in conjunction with embodiment:
[embodiment 1] is illustrated in figure 2 the sensor assembly of cube structure, it comprises the housing 4.2a of sensor 4.1 and cube structure, sensor 4.1 is distributed on four sides of the housing 4.2a of cube structure, sensor 4.1 is sunlight sensor or echo signal sensor, due to sunlight sensor or echo signal sensor construction identical, judge that the principle of signal is identical, therefore be further elaborated for sunlight sensor.Two relative sunlight sensors before and after in figure are divided into one group, and relative two sunlight sensors in left and right are divided into another group, and two groups of incident sunlight signals judging orthogonal both direction respectively, two groups of signal actings in conjunction can judge the angle of incident sunlight signal.
[embodiment 2] is illustrated in figure 3 the sensor assembly of multiedge cylinder structure, it comprises the housing 4.2b of sensor 4.1 and multiedge cylinder structure, sensor 4.1 is distributed in multiedge cylinder side, for sunlight sensor, identical with embodiment 1, relative two sunlight sensors one group each other, are detected the component signal of this direction incident sunlight, are judged the angle of incident sunlight signal by multidirectional signal acting in conjunction.
The functional realiey following the tracks of action module is illustrated below in conjunction with embodiment:
[embodiment 1] is illustrated in figure 4 the tracking action module of rotary luffing structure, pitching unit 8a1 and rotary unit 8a2 is responsible for elevation angle and Bearings tracking respectively, sunlight sensor and echo signal sensor be cycle detection incident sunlight 1 and echo signal 3 and speculum 5 normal angle successively, rotary unit 8a2 is controlled to the angle rotating correspondence near incident sunlight 1 direction according to the angle signal that sunlight signal transducer obtains, pitching unit 8a1 is also to the angle that the motion of incident sunlight 1 direction is corresponding, equally, obtain angle signal according to echo signal sensor and control rotary unit 8a2 to the angle rotating correspondence near incident sunlight 1 direction, pitching unit is also to the angle that the motion of incident sunlight 1 direction is corresponding, repeatedly after circulation, the angle signal that two sensors obtain is equal or be less than threshold value, realize the orienting reflex of sunlight.
[embodiment 2] is illustrated in figure 5 the tracking action module of parallel two axle construction, it comprises central supported unit 8b1 two axle tracking axis 8b2s parallel with two, central supported unit 8b1 comprises the universal structure supported with top, parallel two axle tracking axis 8b2 comprise telescopic unit, support unit and elasticity linkage unit, the tracking action module of these parallel two axle construction is by two mutually orthogonal parallel two axle tracking axis 8b2 stretching motions, drive speculum 5 to circulate successively to incident sunlight 1 direction and goal signal 3 direction to move, be embodied in: to the angle that the signal source motion that angle signal is large is corresponding larger, to the angle that the signal source motion that angle signal is little is corresponding less, repeatedly after circulation, the angle signal that two sensors obtain is equal or be less than threshold value, realize the orienting reflex of sunlight.
[embodiment 3] is illustrated in figure 6 the tracking action module of parallel multi-shaft structure, it comprises many parallel multi-shaft tracking axis 8c1, the movement mechanism of every root parallel multi-shaft tracking axis 8c1 is just the same with the parallel two axle tracking axis 8b2 movement mechanisms in Fig. 5, after the parallel multi-shaft tracking axis 8c1 of sensor and tracking structure increases, more accurate to the walking direction of signal source, the precision of orienting reflex is also higher.
Based on the sunlight directional reflection control method of timesharing competition mechanism, it comprises the steps:
The first step: judge the signal source of its correspondence and the angled relationships of speculum (5) normal respectively by sunlight sensor or echo signal sensor, the deflection position of signal source in this direction is judged by two sensors 4.1 relative in sensor assembly 4, many groups sensor 4.1 cooperation judges the position relationship of signal source direction and speculum 5 normal, and export control signal according to angle signal, control to follow the tracks of action module 8 to the motion of this signal source and the angle of angle proportion relation;
Second step: judge that gained signal controls this group sensor 4.1 and controls lower motor to the angle of signal source direction motion with angle signal proportion relation according to often organizing sensor 4.1, many group motors work simultaneously and speculum fixed support 7 can be made to drive tracking integral plane to move the angle with the proportional relation of angle signal to the direction of signal source;
3rd step: adopt the mode identical with described in second step with the first step to judge the angle of another signal source and speculum 5 normal by another sensor assembly 4, same output control signal, control to follow the tracks of action module 8 to the motion of this signal source and the angle of the proportional relation of angle signal, it is identical with proportionate relationship formed by angle signal that two sensors module 4 controls to follow the tracks of the angle that action module 8 moves;
4th step: action described in above three steps of circulation successively, until when the angle signal of two sensor assembly 4 outputs is identical or difference is less than setting value, follows the tracks of action module 8 and quits work.
Claims (7)
1. based on the sunlight directional reflection control device of timesharing competition mechanism, it is characterized in that: it comprises target signal source (2), speculum (5), sensor assembly (4), speculum fixed support (7), follow the tracks of action module (8) and supporting module (9), sensor assembly (4) is two, what two sensor assemblies (4) were symmetrical is fixed on speculum fixed support (7), speculum (5) is fixed on the centre position of speculum fixed support (7), the signal output part of sensor assembly (4) is connected with the control signal input following the tracks of action module (8), control the tracking action following the tracks of action module (8), supporting module (9) connects speculum fixed support (7) by following the tracks of action module (8), support whole device, target signal source (2) is for launching echo signal (3) and receiving the incident sunlight (1) that speculum (5) reflects, described sensor assembly (4) is made up of one or more sensor (4.1) and housing (4.2), and one or more sensor (4.1) is installed on housing (4.2) outside respectively.
2. the sunlight directional reflection control device based on timesharing competition mechanism according to claim 1, it is characterized in that: the sensor (4.1) on described sensor assembly (4) is sunlight sensor or echo signal sensor, sunlight sensor is arranged on one of them sensor assembly (4), and echo signal sensor setting is on another sensor assembly (4).
3. the sunlight directional reflection control device based on timesharing competition mechanism according to claim 2, it is characterized in that: described sunlight sensor is identical with echo signal sensor construction, sunlight sensor is for detecting the angle of incident sunlight (1) and speculum (5) normal, and echo signal sensor is for detecting the angle of echo signal (3) and speculum (5) normal.
4. the sunlight directional reflection control device based on timesharing competition mechanism according to claim 1, is characterized in that: described echo signal (3) comprises microwave and radio wave.
5. the sunlight directional reflection control device based on timesharing competition mechanism according to claim 1, is characterized in that: described speculum (5) is level crossing.
6. the sunlight directional reflection control device based on timesharing competition mechanism according to claim 1, it is characterized in that: described control signal is angle signal, the tracking action following the tracks of action module (8) is controlled by the size of angle signal: 1. when angle signal is large, and the tracking action following the tracks of action module (8) is large; 2. when the angle signal hour of input, the tracking action following the tracks of action module (8) is little; 3. when sunlight sensor is identical with the angle signal that echo signal sensor exports or differ be less than setting value time, follow the tracks of action module (8) quit work.
7., based on the sunlight directional reflection control method of timesharing competition mechanism, it is characterized in that: it comprises the steps:
The first step: judge the signal source of its correspondence and the angle of speculum (5) normal by a sensor assembly (4) in both sunlight sensor or echo signal sensor, and export control signal according to angle signal, control to follow the tracks of action module (8) to the motion of this signal source and the angle of angle proportion relation;
Second step: the angle being judged another signal source and normal by another sensor assembly (4), same output control signal, control to follow the tracks of action module (8) to the motion of this signal source and the angle of the proportional relation of angle signal, it is identical with proportionate relationship formed by angle signal that two sensors module (4) controls to follow the tracks of the angle that action module (8) moves;
3rd step: action described in the circulation first step successively and second step, until when the angle signal that exports of two sensor assemblies (4) is identical or difference is less than setting value, follows the tracks of action module (8) and quit work.
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| CN201310361245.2A CN103471265B (en) | 2013-08-19 | 2013-08-19 | Sunlight directional reflection control device based on time-sharing competition mechanism and control method thereof |
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| CN104199170B (en) * | 2014-08-01 | 2016-07-06 | 上海宇航***工程研究所 | A kind of moon poles terminator luminous energy directional transmissions device |
| CN107238376B (en) * | 2017-05-12 | 2019-06-14 | 罗耿 | A kind of heliostat attitude transducer and heliostat to automatically follow method |
| CN117933105B (en) * | 2024-03-25 | 2024-05-31 | 南京信息工程大学 | Optimization method and system for heliostat field layout |
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| JP3784021B2 (en) * | 2003-05-06 | 2006-06-07 | 三鷹光器株式会社 | Autonomous heliostat |
| CN1204357C (en) * | 2003-08-21 | 2005-06-01 | 张耀明 | Light collector by plane mirror directive reflection |
| CN2921705Y (en) * | 2006-05-22 | 2007-07-11 | 马保周 | Automatic tracking directional reflecting solar energy boiler |
| US20110030672A1 (en) * | 2006-07-14 | 2011-02-10 | Olsson Mark S | Solar Collection Apparatus and Methods Using Accelerometers and Magnetics Sensors |
| CN101236287A (en) * | 2008-02-26 | 2008-08-06 | 苏建国 | Heliostat device |
| CN202383525U (en) * | 2011-12-28 | 2012-08-15 | 山东沃而丰新能源工业有限公司 | Automatic tracking system for solar power generation |
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Owner name: SICHUAN JIZHI LANGRUN TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: GAO CHUNMING Effective date: 20150629 |
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Effective date of registration: 20150629 Address after: 610041, No. 88, No. 2, 18, 8, five Tai Ji Road, Chengdu hi tech Development Zone, Sichuan, China Patentee after: GAO CHUNMING Address before: 610054, No. two, section four, Jianshe North Road, Chengdu, Sichuan, Chenghua District Patentee before: Gao Chunming |