CN103471265A - 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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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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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 day luminous directional reflectance control device and control method based on the timesharing competition mechanism.
Background technology
Along with the world energy sources crisis is further serious; solar light-heat power-generation more and more comes into one's own; its generation mode mainly is divided into dish formula, slot type and tower three kinds; with the hot generation mode of slot type and disc type solar energy, compare, tower type solar energy thermal power generation has the technical advantages such as concentration degree is high, the optically focused multiplying power is high, the capacity extensions cost is low.Tower type solar generating be by many groups heliostat and tracking system by the sunlight reflected of different directions incident in fixing tower heat collector, then be electric energy by the thermal power transfer of collection.Sunlight orienting reflex device directly affects sunlight reflected to the efficiency of heat collector the generating efficiency of tower type solar electricity generation system.
Current tower type solar generating orienting reflex device has multiple control modes, wherein adopts close-loop control mode more, and so-called close-loop control mode is whether the direction by detecting light reflection is required direction, controls the tracking means motion.As " from motion tracking orienting reflex solar boiler " that application number 200620084631.7 is announced, it compares by the position of detection of reflected optic angle degree 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, to control tracking system by the detection of reflected direction of 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 fixed, once the position of device or sensor changes, and can't complete reflection, this is concerning large-scale tower power plant, the equipment installation difficulty is large, and installation cost is high.
" a kind of tracking means of the heliostat for the tower type solar energy thermal power generation station " that and for example application number 201110041874.8 is announced, the catoptrical signal of taking by the camera group who is fixed on tower-type heat collector is controlled tracking structure and is realized reflection; " heliostat tracing control device at tower type solar energy thermal power generation station " that application number 201120041047.4 is announced is also that the reverberation direction signal that the video camera by being fixed on heat collector photographs is controlled adjustment tracking means realization reflection; " sun tracker equipment and the system " that application number 201080042011.6 is announced,, by being arranged on the imaging device of following the trail of the mechanism center, obtaining the reverberation direction mode whether identical with target direction and 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 subject to the impact of sensor, and tracking accuracy is high, but this apparatus control system complexity, control program will be calculated each imaging device, and amount of calculation is large.
In addition, the open loop of employing program controlled mode is also arranged in existing control mode, so-called open loop programme-control is to utilize program to calculate the angle of each moment sun every day, calculate again the angle of speculum, control tracking means and complete reflection, perhaps by sensor, detect the position of the sun, the orientation at place when calculating again reflective mirror and reflecting light to fixed position, control tracking system and complete tracking, yet these two kinds of mode calculation of complex, the given fixing control program of reflection unit to different installation sites, and the former easily produces cumulative errors, cause reflecting low precision or reflect unsuccessfully.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, provide a kind of installation difficulty little, use flexibly, control simply the day luminous directional reflectance control device and control method based on the timesharing competition mechanism, its reflection precision is fixed, without cumulative errors, produce, when installing mobile or position adjustment, can not affect its orienting reflex to sunlight.
The objective of the invention is to be achieved through the following technical solutions: the day luminous directional reflectance control device based on the timesharing competition mechanism, it comprises the echo signal source, speculum, sensor assembly, the speculum fixed support, follow the tracks of action module and supporting module, sensor assembly is two, being fixed on the speculum fixed support of two sensor assembly symmetries, 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 of following the tracks of action module, control the tracking action of following the tracks of action module, supporting module connects the speculum fixed support by following the tracks of action module, support whole device, the echo signal source is used for the incident sunlight of launching echo signal and receiving mirror reflects.Described sensor assembly is comprised of one or more sensors and housing, and one or more sensors are installed on respectively hull outside.
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 the echo signal sensor setting is on another sensor assembly.Sunlight sensor is identical with the echo signal sensor construction, and sunlight sensor is for detection of the angle of incident sunlight and speculum normal, and the echo signal sensor is for detection of 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 the angle signal, follows the tracks of the tracking action of action module and is controlled by the size of angle signal: 1., when the angle signal is large, the tracking action of following the tracks of action module is large; 2. when the angle signal hour of input, the tracking action of following the tracks of action module is little; 3. when the angle signal of sunlight sensor and echo signal sensor output is identical or differ while being less than setting value, follow the tracks of action module and quit work.
Day luminous directional reflectance control method based on the timesharing competition mechanism, it comprises the steps:
The first step: by sunlight sensor or echo signal sensor, judge respectively signal source that it is corresponding and the angle of speculum normal, and, according to angle signal output control signal, control and follow the tracks of the angle of action module to this signal source motion and angle proportion relation;
Second step: the angle that is judged another signal source and normal by another sensor assembly, same output control signal, control and follow the tracks of the angle of action module to this signal source motion and the proportional relation of angle signal, the angle that the two sensors module controls is followed the tracks of the action module motion is identical with the proportionate relationship that the angle signal becomes;
The 3rd step: the described action of the first step that circulates successively and second step, until the angle signal of two sensor assemblies output is identical or differ while being 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 the action module motion, has increased flexibility and the uniformity of device;
(2) following the tracks of action module is alternately controlled by sunlight sensor and echo signal sensor, make to follow the tracks of action module drive speculum and replace optical signal source and echo signal source movement on the sunny side, realize the working method of timesharing competition, and then simplified control program, calculate simple;
(3) sensor setting, following the tracks of on action module, adopts the real-time detection mode of open loop, and the orienting reflex precision is fixed, and has avoided the generation of accumulated error, and the reflection precision is high;
(4) can in heliostat field, install optional position, when installing mobile or position adjustment, not affect its orienting reflex to sunlight.
The accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
The sensor assembly that Fig. 2 is cube structure;
The sensor assembly that Fig. 3 is the multiedge cylinder structure;
The tracking action module that Fig. 4 is the rotary luffing structure;
The tracking action module that Fig. 5 is parallel two axle construction;
The tracking action module that Fig. 6 is parallel multiaxis structure;
In figure, 1-incident sunlight, 2-echo signal source, 3-echo signal, the 4-sensor assembly, 4.1-sensor, 4.2-housing, 4.2a-the housing of 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-center support unit, the parallel two axle tracking axis of 8b2-, the parallel multiaxis tracking axis of 8c1-, 9-supporting module.
The specific embodiment
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, day luminous directional reflectance control device based on the timesharing competition mechanism, it comprises echo 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, being fixed on speculum fixed support 7 of two sensor assembly 4 symmetries, 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 of following the tracks of action module 8, alternately control the tracking action of following the tracks of action module 8, realize following the tracks of the working method of action module 8 timesharing, make to follow the tracks of action module 8 and drive speculum 5 alternately to incident sunlight signal source 6 and 2 motions of echo signal source, realize competition, repeatedly after periodic duty, incident sunlight 1 orienting reflex is to the position in echo 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 echo signal source 2 is for launching echo signal 3 and receiving the incident sunlight 1 that speculum 5 reflects.Described sensor assembly 4 is comprised of one or more sensors 4.1 and housing 4.2, and one or more sensors 4.1 are installed on respectively housing 4.2 outsides.
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 the echo signal sensor setting is on another sensor assembly 4.Sunlight sensor is identical with the echo signal sensor construction, functional similarity, sunlight sensor is the angle with speculum 5 normals for detection of incident sunlight 1, and to following the tracks of the corresponding angle signal of action module 8 output, the echo signal sensor is the angle with speculum 5 normals for detection of echo signal 3, and to following the tracks of the corresponding angle signal of action module 8 output.
Follow the tracks of the mode of action module 8 by time-sharing work works alone respectively under the control of the angle signal of sunlight sensor and the output of echo signal sensor, and the tracking action of following the tracks of action module 8 is controlled by the size of angle signal: 1., when the angle signal is large, the tracking action of following the tracks of action module 8 is large, 2. when the angle signal hour of input, the tracking action of following the tracks of action module 8 is little, 3. when sunlight sensor detects the angle signal of incident sunlight 1 and speculum 5 normals, control circuit control to be followed the tracks of action module 8 to the incident sunlight 1 direction corresponding angle of moving, when the echo signal sensor detects the angle signal of echo signal 3 and speculum 5 normals, control circuit control to be followed the tracks of action module 8 to the echo signal 3 directions corresponding angle of moving, repeatedly after periodic duty, when the angle signal of sunlight sensor and echo signal sensor output is identical or differ while being less than setting value, following the tracks of action module 8 quits work, realization is the position to echo signal source 2 by incident sunlight 1 orienting reflex.
Described echo signal 3 comprises microwave and radio wave.Described speculum 5 is level crossing, can improve the reflection efficiency of incident day luminous directional reflectance device.
The function that illustrates sensor assembly below in conjunction with embodiment realizes:
[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 housing 4.2a of cube structure, sensor 4.1 is sunlight sensor or echo signal sensor, due to sunlight sensor or the echo signal sensor construction identical, the principle of judgement signal is identical, therefore take sunlight sensor, is further elaborated as example.Two relative sunlight sensors of front and back in figure are divided into to one group, and two relative sunlight sensors of left and right are divided into another group, two groups of incident sunlight signals that judge respectively the both direction of quadrature, and two groups of signal actings in conjunction can judge the angle of incident sunlight signal.
[embodiment 2] are 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 the multiedge cylinder side, take sunlight sensor as example, identical with embodiment 1, one group each other of two relative sunlight sensor, detect the component signal of this direction incident sunlight, judges the angle of incident sunlight signal by multidirectional signal acting in conjunction.
Illustrating the function of following the tracks of action module below in conjunction with embodiment realizes:
[embodiment 1] is illustrated in figure 4 the tracking action module of rotary luffing structure, pitching unit 8a1 and rotary unit 8a2 are responsible for respectively elevation angle and Bearings tracking, sunlight sensor and echo signal sensor be cycle detection incident sunlight 1 and echo signal 3 and speculum 5 normal angles successively, the angle signal obtained according to the sunlight signal transducer is controlled rotary unit 8a2 to close angle corresponding to incident sunlight 1 direction rotation, pitching unit 8a1 is also to the incident sunlight 1 direction corresponding angle of moving, equally, obtain angle signal according to the echo signal sensor and control rotary unit 8a2 to close angle corresponding to incident sunlight 1 direction rotation, the pitching unit is also to the incident sunlight 1 direction corresponding angle of moving, repeatedly after the circulation, the angle signal that two sensors obtain equates or is less than threshold value, realize the orienting reflex of sunlight.
[embodiment 2] are illustrated in figure 5 the tracking action module of parallel two axle construction, it comprises center support unit 8b1 two axle tracking axis 8b2s parallel with two, center support 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, driving speculum 5 circulates successively to the 1 direction and goal signal 3 direction motions of incident sunlight, be embodied in: angle corresponding to large signal source motion to the angle signal, angle corresponding to little signal source motion to the angle signal, repeatedly after the circulation, the angle signal that two sensors obtain equates or is less than threshold value, realize the orienting reflex of sunlight.
[embodiment 3] are illustrated in figure 6 the tracking action module of parallel multiaxis structure, it comprises many parallel multiaxis tracking axis 8c1, the movement mechanism of every parallel multiaxis tracking axis 8c1 is just the same with the parallel two axle tracking axis 8b2 movement mechanisms in Fig. 5, when sensor with after the parallel multiaxis tracking axis 8c1 of tracking structure increases, direction judgement to signal source is more accurate, and the precision of orienting reflex is also higher.
Day luminous directional reflectance control method based on the timesharing competition mechanism, it comprises the steps:
The first step: by sunlight sensor or echo signal sensor, judge respectively signal source that it is corresponding and the angle relation of speculum (5) normal, deflection position by two sensors relative in sensor assembly 4,4.1 judgement signal sources in this direction, the position relationship of signal source direction and speculum 5 normals is judged in the common work of many group sensors 4.1, and, according to angle signal output control signal, control and follow the tracks of the angle of action module 8 to this signal source motion and angle proportion relation;
Second step: according to these group sensors 4.1 of every group of sensor 4.1 judgement gained signal controlling control lower motor to the signal source direction motion angle with angle signal proportion relation, organize motor more and work simultaneously and can make speculum fixed support 7 drive the tracking integral planes to move the angle with the proportional relation of angle signal to the direction of signal source;
The 3rd step: the angle that is judged another signal source and speculum 5 normals by another sensor assembly 4 employings and the first step and the described identical mode of second step, same output control signal, control and follow the tracks of the angle of action module 8 to this signal source motion and the proportional relation of angle signal, it is identical with the proportionate relationship that the angle signal becomes that two sensors module 4 is controlled the angle of following the tracks of action module 8 motions;
The 4th step: the above described action of three steps of circulation successively, until the angle signal of two sensor assembly 4 outputs is identical or differ while being less than setting value, follows the tracks of action module 8 and quit work.
Claims (7)
1. the day luminous directional reflectance control device based on the timesharing competition mechanism, it is characterized in that: it comprises echo 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 of following the tracks of action module (8), control the tracking action of 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, echo signal source (2) is for launching echo signal (3) and receiving the incident sunlight (1) that speculum (5) reflects, described sensor assembly (4) is comprised of one or more sensors (4.1) and housing (4.2), and one or more sensors (4.1) are installed on respectively housing (4.2) outside.
2. the day luminous directional reflectance control device based on the 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, it is upper that sunlight sensor is arranged on one of them sensor assembly (4), and the echo signal sensor setting is on another sensor assembly (4).
3. the day luminous directional reflectance control device based on the timesharing competition mechanism according to claim 2, it is characterized in that: described sunlight sensor is identical with the echo signal sensor construction, sunlight sensor is the angle with speculum (5) normal for detection of incident sunlight (1), and the echo signal sensor is the angle with speculum (5) normal for detection of echo signal (3).
4. the day luminous directional reflectance control device based on the timesharing competition mechanism according to claim 1, it is characterized in that: described echo signal (3) comprises microwave and radio wave.
5. the day luminous directional reflectance control device based on the timesharing competition mechanism according to claim 1, it is characterized in that: described speculum (5) is level crossing.
6. the day luminous directional reflectance control device based on the timesharing competition mechanism according to claim 1, it is characterized in that: described control signal is the angle signal, following the tracks of the tracking action of action module (8) is controlled by the size of angle signal: 1., when the angle signal is large, the tracking action of following the tracks of action module (8) is large; 2. when the angle signal hour of input, the tracking action of following the tracks of action module (8) is little; 3. when the angle signal of sunlight sensor and echo signal sensor output is identical or differ while being less than setting value, follow the tracks of action module (8) and quit work.
7. the day luminous directional reflectance control method based on the timesharing competition mechanism, it is characterized in that: it comprises the steps:
The first step: by sunlight sensor or echo signal sensor, judge respectively signal source that it is corresponding and the angle of speculum (5) normal, and, according to angle signal output control signal, control and follow the tracks of the angle of action module (8) to this signal source motion and angle proportion relation;
Second step: the angle that is judged another signal source and normal by another sensor assembly (4), same output control signal, control and follow the tracks of the angle of action module (8) to this signal source motion and the proportional relation of angle signal, it is identical with the proportionate relationship that the angle signal becomes that two sensors module (4) is controlled the angle of following the tracks of action module (8) motion;
The 3rd step: the described action of the first step that circulates successively and second step, until the angle signal of two sensor assemblies (4) output is identical or differ while being 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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| CN107238376A (en) * | 2017-05-12 | 2017-10-10 | 罗耿 | A kind of heliostat attitude transducer and heliostat to automatically follow method |
| CN117933105A (en) * | 2024-03-25 | 2024-04-26 | 南京信息工程大学 | Optimization method and system for heliostat field layout |
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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: Sichuan Jizhi Langrun Technology Co.,Ltd. Address before: 610054, No. two, section four, Jianshe North Road, Chengdu, Sichuan, Chenghua District Patentee before: Gao Chunming |
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Granted publication date: 20150311 |