CN201263130Y - Sun tracking device for solar generating device - Google Patents
Sun tracking device for solar generating device Download PDFInfo
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- CN201263130Y CN201263130Y CN 200820141653 CN200820141653U CN201263130Y CN 201263130 Y CN201263130 Y CN 201263130Y CN 200820141653 CN200820141653 CN 200820141653 CN 200820141653 U CN200820141653 U CN 200820141653U CN 201263130 Y CN201263130 Y CN 201263130Y
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Abstract
The utility model relates to a sun-pursuing tracker device of solar generators, which comprises a solar power tower and a solar power platform. The platform is provided with a solar convergent lens, a solar energy thermal collector and solar heat transfer tubes; a central control unit (CCU) arranged in the solar power tower comprises a CPU module, and a photosensor, a direct-solar-radiation sensor, an angle sensor, a GPS and a meteorological sensor which form a data transmission channel together with the CPU module; the solar power platform is arranged at the top of the solar power tower by a bracing beam and a guide rail, the bracing beam is arranged on the outer wall of the upper part of the solar power tower, and the guide rail is fixed on the bracing beam and arranged at the bottom of the solar power platform. The solar power platform is provided with the photosensor, the direct-solar-radiation sensor and the meteorological sensor; a central connecting rod is arranged between the solar heat transfer tubes; the angle sensor comprises an azimuth angle sensor and an altitude angle sensor; the azimuth sensor is positioned at the top of the solar power tower and is interacted with the guide rail; the altitude angle sensor is positioned on the solar heat transfer tube; and the sun-pursuing tracker device has high accuracy and stable and reliable operation.
Description
Technical field
The utility model relates to device of solar generating, relates in particular to a kind of solar tracking tracking means of device of solar generating.
Background technology
The sun tracker of using in the existing device of solar generating, division mainly contains two kinds according to tracking mode: a kind of is photoelectronic tracking device, and another kind is the clock tracing device.Wherein, the device of the photoelectric tracking sun is to adopt photoelectric sensor directly to control motor to rotate, and then drives condenser and move towards the orientation of the sun, to obtain more solar energy; This device is not having under the weather condition of cloud layer, because solar irradiance is stronger, tracking effect is relatively good, in case run into cloudy weather, will cause and follow the tracks of failure or stop tracking, and therefore this control mode is subjected to the influence of weather condition bigger; In addition, the device of this tracking mode of this employing, all use light-sensitive sensor spares such as photo resistance, silicon photocell mostly, these device majorities can only be worked in less illumination range, and the linearity is relatively poor, slow in reacting, be difficult to the variation of response light, therefore the data fluctuations of gathering is very big, this class operating sensor often is subjected to light to influence reciprocal operation or vibration, can cause the additional wear of the waste of the energy and parts and follow the tracks of failure, not be suitable for large-scale, heavy load or tracking accuracy and require to use than higher system.The device of the clock tracing sun, generally be according to the sun on high in the movement angle of per minute, calculate the angle that the sunlight receiver per minute should rotate, thereby determine rotating speed of motor, make sunlight receiver to carry out corresponding change, thereby obtain more solar energy according to sun shift position; Be characterized in that circuit structure is fairly simple, but because the clock accumulated error constantly increases, and computational accuracy can constantly reduce, and this tracking means is generally open loop structure, the non-angular value of feedback compares, so tracking accuracy is lower.
The utility model content
Main purpose of the present utility model is to overcome the above-mentioned shortcoming that existing product exists, and a kind of solar tracking tracking means of device of solar generating is provided, its central controller comprises Programmable Logic Controller (PLC) and the photoelectric sensor that is connected with this Programmable Logic Controller (PLC), sun direct projection transducer, angular transducer, GPS global location device and meteorological sensor; GPS global location device can provide very high geographical longitude and latitude of precision and local time data to position of sun, makes the solar tracking tracking means can determine instant position of sun; Be provided with to tracking means actual motion angle feedback adopt high-resolution angular encoder to detect and adjust and to tracking means to two closed loop feedback structures that the actual tracking error feedback of the sun adopts photoelectric sensor to indicate, guarantee to follow the trail of the precision of moving; Be provided with sun direct projection transducer as the operation foundation, when the sun direct projection value of sun direct projection sensor during less than the set point of solar tracking tracking means, central controller is promptly controlled and is stopped to follow the tracks of operation; Meteorological sensor can be protected the operation of solar tracking tracking means, under the situation of bad weather, sends alarm signal, makes central controller controls solar tracking tracking means operation suspension; Reach solar tracking and follow the tracks of the precision height, reliable effect operates steadily.
The purpose of this utility model is realized by following technical scheme.
The solar tracking tracking means of the utility model device of solar generating comprises solar power generation tower 1 and platform 2, and platform 2 is provided with solar energy condenser lens 21, solar collector 22 and solar heat transfer tube 23; It is characterized in that, in the described solar power generation tower 1 central controller 3 is set, this central controller 3 comprises that the CPU module reaches and photoelectric sensor 4, sun direct projection transducer 5, angular transducer, GPS global location device 7 and the meteorological sensor 8 of CPU module composition data transmission channel; Described solar power generation platform 2 is arranged on solar power generation tower 1 top by brace summer 9 and guide rail, this brace summer 9 is arranged on the outside wall surface on solar power generation tower 1 top, guide rail is fixed on the brace summer 9 and is positioned at solar power generation platform 2 bottoms, photoelectric sensor 4, sun direct projection transducer 5 and meteorological sensor 8 are set on this solar power generation platform 2, are provided with a plurality of center rod 24 between the solar heat transfer tube 23 of solar power generation platform 2; Described angular transducer comprises azimuth sensor 61 and elevation angle transducer 62, this azimuth sensor 61 be fixed on solar power generation tower 1 top and with the guide rail interlock, this elevation angle transducer 62 is arranged on the solar power generation platform 2 solar heat transfer tubes 23.
The solar tracking tracking means of aforesaid device of solar generating, its middle guide are that cross section is I-shaped ring-shaped guide rail, and it comprises outer guide, interior guide rail 103 and driving guide rail 104; This outer guide comprises outer quiet guide rail 101 and outer moving guide rail 102, the lower plane 1011 of outer quiet guide rail is fixed on the end of brace summer 9 away from solar power generation tower 1, fix a plurality of pulley brackets 1013 on the last plane 1012 of outer quiet guide rail, on this pulley bracket 1013 pulley 1014 is set, the lower plane of outer moving guide rail 102 is placed on a plurality of pulleys 1014, and the last plane of moving guide rail 102 is positioned at solar power generation platform 2 bottoms outward; Guide rail 103 is fixed on the top of solar power generation tower 1 in being somebody's turn to do by a plurality of support pulley bases 1031 and location pulley base 1033, a plurality of support pulley bases 1031 and location pulley base 1033 are to be crisscross arranged, support to be provided with on the pulley base 1031 and support pulley 1032, location pulley 1034 is set on the pulley base 1033 of location, the lower plane of interior guide rail 103 is placed on a plurality of support pulleys 1032, the last plane of interior guide rail 103 is positioned at solar power generation platform 2 bottoms, and a plurality of location pulley 1034 contacts with the side slip of interior guide rail 103; This driving guide rail 104 drives by plural drive motors 1041 and drives 2 rotations of solar power generation platform, this drive motors 1041 is fixed between two adjacent brace summers 9 by motor bearing 1042, the driving shaft of drive motors 1041 is provided with friction pulley 1043, the lower plane of this driving guide rail 104 is placed on the friction pulley 1043, the last plane of driving guide rail 104 is positioned at solar power generation platform 2 bottoms, and drive motors 1041 is connected with Programmable Logic Controller (PLC).
The solar tracking tracking means of aforesaid device of solar generating, wherein azimuth sensor 61 and elevation angle transducer 62 are absolute value type angular encoder; Described meteorological sensor 8 is one or more in wind speed atmospherium, snow depth atmospherium, rainfall atmospherium, the gentle pressure atmospherium of temperature atmospherium.
The solar tracking tracking means of aforesaid device of solar generating, wherein solar power generation platform 2 is a joist body, meteorological sensor 8 is arranged on the joist body, and photoelectric sensor 4 and sun direct projection transducer 5 are arranged on the solar heat transfer tube 23 that is fixed on the solar power generation platform 2.
The solar tracking tracking means of aforesaid device of solar generating, wherein azimuth sensor 61 is an absolute value type angular encoder, this encoder is fixed on solar power generation tower 1 top by supporting seat 611, the friction pulley 612 of encoder and interior guide rail 103 friction interlocks.
The solar tracking tracking means of aforesaid device of solar generating wherein is provided with a plurality of center rod 24 between solar power generation platform 2 every two adjacent solar heat transfer tubes 23, and the center rod 24 of correspondence position butt joint mutually is integral; This center rod 24 is connected with the push rod 111 of hydraulic cylinder 11, and this hydraulic cylinder 11 is provided with electromagnetically operated valve and is fixed on the solar power generation platform 2 by bearing 112.
The solar tracking tracking means of aforesaid device of solar generating, wherein the input of drive motors 1041 connects reductor, and this reducing motor connects frequency converter.
Aforementioned central controller comprises CPU module, analog quantity modular converter, angular transition module, serial communication module, driver module and a display unit; This CPU module is a data processing module, and it is provided with arithmetic element, comparing unit and interlock control unit; This analog quantity modular converter comprises simulated photoelectric amount modular converter, sun direct projection analog quantity modular converter and meteorological simulation amount modular converter; This driver module comprises motor drive module and Driven by Hydraulic Cylinder module; This display unit is connected with the communication interface of the CPU module of central controller, and display unit is the display with direct touch operation function; Described photoelectric sensor (4) is by the comparing unit composition data transmission channel of simulated photoelectric amount modular converter and CPU module; Described sun direct projection transducer (5) is by the arithmetic element composition data transmission channel of sun direct projection analog quantity modular converter and CPU module; Described meteorological sensor connects (8) interlock control unit composition data transmission channel by meteorological simulation amount modular converter and CPU module; Described GPS global location device (7) is by the arithmetic element composition data transmission channel of serial communication module and CPU module; Described azimuth sensor (61) and elevation angle transducer (62) are by the arithmetic element composition data transmission channel of angular transition module and CPU module; The frequency setting end of the reductor frequency converter that described drive motors (1041) connects is by the interlock control unit composition data transmission channel of motor drive module and CPU module; The electromagnetically operated valve of described hydraulic cylinder (11) is by the interlock control unit composition data transmission channel of Driven by Hydraulic Cylinder module and CPU module.
The beneficial effect of the solar tracking tracking means of the utility model device of solar generating, this device tracking platform is perpendicular to ground, and reliable supporting structure is set, platform weight is remained in the vertical plane, ground, relatively be fit to the bigger system applies of system load; This device is to move according to the angle calculation value of following the tracks of the solar motion track, can overcome that tracking means changes the operation concussion that causes with sunray when only adopting photoelectric sensor, make operate steadily reliable; This device use angle transducer is revised kinematic error, use photoelectric sensor that actual tracking error is revised simultaneously, two cover transducer Application of composite, the tracking accuracy height can satisfy optically focused class solar power system to the high accuracy of tracking and the requirement of high reliability.
Description of drawings:
Fig. 1 is the solar tracking tracking means perspective view of the utility model device of solar generating.
Fig. 2 is the solar tracking tracking means stereochemical structure end view of the utility model device of solar generating.
Fig. 3 is the solar tracking tracking means platform rail structural representation of the utility model device of solar generating.
Fig. 4 is the interior guide rail structure schematic diagram of B portion's platform shown in Figure 3.
Fig. 5 is a C shown in Figure 3 portion platform outer guide part-structure enlarged diagram.
Fig. 6 is the solar tracking tracking means elevation angle control structure schematic diagram of the utility model device of solar generating.
Fig. 7 is the solar tracking tracking means central controller square construction drawing of the utility model device of solar generating.
Major label description in figure: 1 solar power generation tower, 2 solar power generation platforms, 21 solar energy condenser lens, 22 solar collectors, 23 solar heat transfer tubes, 24 center rod, 3 central controllers, 4 photoelectric sensors, 5 sun direct projection transducers, 61 azimuth sensors, 611 azimuth angular encoders supporting seats, 612 azimuth angular encoders friction pulleys, 62 elevation angle transducers, 7 is GPS global location device, 8 meteorological sensors, 9 brace summers, 101 outer quiet guide rails, the lower plane of 1011 outer quiet guide rails, the last plane of 1012 outer quiet guide rails, 1013 pulley brackets, 1014 pulleys, 102 outer moving guide rails, guide rail in 103,1031 support pulley base, 1032 support pulley, 1033 location pulley bases, 1034 location pulleys, 104 driving guide rail, 1041 drive motors, 1042 motor bearings, 1043 friction pulleys, 11 hydraulic cylinders, 111 push rods, 112 hydraulic cylinder bearings.
Embodiment
Consult Fig. 1, shown in Figure 2, the structure of the solar tracking tracking means of the utility model device of solar generating, it comprises solar power generation tower 1 and platform 2, platform 2 is provided with solar energy condenser lens 21, solar collector 22 and solar heat transfer tube 23; Its improvements are, central controller 3 is set in the solar power generation tower 1, and this central controller 3 comprises that the CPU module reaches and photoelectric sensor 4, sun direct projection transducer 5, angular transducer, GPS global location device 7 and the meteorological sensor 8 of CPU module composition data transmission channel; Described solar power generation platform 2 is arranged on solar power generation tower 1 top by brace summer 9 and guide rail, this brace summer 9 is arranged on the outside wall surface on solar power generation tower 1 top, guide rail is fixed on the brace summer 9 and is positioned at solar power generation platform 2 bottoms, photoelectric sensor 4, sun direct projection transducer 5 and meteorological sensor 8 are set on this solar power generation platform 2, are provided with a plurality of center rod 24 between the solar heat transfer tube 23 of solar power generation platform 2; Described angular transducer comprises azimuth sensor 61 and elevation angle transducer 62, this azimuth sensor 61 be fixed on solar power generation tower 1 top and with the guide rail interlock, this elevation angle transducer 62 is arranged on the solar power generation platform 2 solar heat transfer tubes 23.
Consult Fig. 3, Fig. 4, shown in Figure 5, the solar tracking tracking means of the utility model device of solar generating, wherein, guide rail is that cross section is I-shaped ring-shaped guide rail, it comprises outer guide, interior guide rail 103 and driving guide rail 104; This outer guide comprises outer quiet guide rail 101 and outer moving guide rail 102, the lower plane 1011 of outer quiet guide rail is fixed on the end of brace summer 9 away from solar power generation tower 1, fix a plurality of pulley brackets 1013 on the last plane 1012 of outer quiet guide rail, on this pulley bracket 1013 pulley 1014 is set, the lower plane of outer moving guide rail 102 is placed on a plurality of pulleys 1014, and the last plane of moving guide rail 102 is positioned at solar power generation platform 2 bottoms outward; Guide rail 103 is fixed on the top of solar power generation tower 1 in being somebody's turn to do by a plurality of support pulley bases 1031 and location pulley base 1033, a plurality of support pulley bases 1031 and location pulley base 1033 are to be crisscross arranged, support to be provided with on the pulley base 1031 and support pulley 1032, location pulley 1034 is set on the pulley base 1033 of location, the lower plane of interior guide rail 103 is placed on a plurality of support pulleys 1032, the last plane of interior guide rail 103 is positioned at solar power generation platform 2 bottoms, and a plurality of location pulley 1034 contacts with the side slip of interior guide rail 103; This driving guide rail 104 drives by plural drive motors 1041 and drives 2 rotations of solar power generation platform, this drive motors 1041 is fixed between two adjacent brace summers 9 by motor bearing 1042, the driving shaft of drive motors 1041 is provided with friction pulley 1043, the lower plane of this driving guide rail 104 is placed on the friction pulley 1043, the last plane of driving guide rail 104 is positioned at solar power generation platform 2 bottoms, and drive motors 1041 is connected with Programmable Logic Controller (PLC); Azimuth sensor 61 and elevation angle transducer 62 are absolute value type angular encoder; Described meteorological sensor 8 is one or more in wind speed atmospherium, snow depth atmospherium, rainfall atmospherium, the gentle pressure atmospherium of temperature atmospherium, as shown in Figure 1; Solar power generation platform 2 is a joist body, and meteorological sensor 8 is arranged on the joist body, and photoelectric sensor 4 and sun direct projection transducer 5 are arranged on the solar heat transfer tube 23 that is fixed on the solar power generation platform 2, as shown in Figure 1 and Figure 2; Azimuth sensor 61 is an absolute value type angular encoder, and this encoder is fixed on solar power generation tower 1 top by supporting seat 611, the friction pulley 612 of encoder and interior guide rail 103 friction interlocks, as shown in Figure 4.
Consult shown in Figure 6ly, the solar tracking tracking means of the utility model device of solar generating is provided with a plurality of center rod 24 between its solar power generation platform 2 every two adjacent solar heat transfer tubes 23, and the center rod 24 of correspondence position butt joint mutually is integral; This center rod 24 is connected with the push rod 111 of hydraulic cylinder 11, and this hydraulic cylinder 11 is provided with electromagnetically operated valve and is fixed on the solar power generation platform 2 by bearing 112; The solar tracking tracking means of device of solar generating, wherein the input of drive motors 1041 connects the reductor (not shown), and this reducing motor connects the frequency converter (not shown).
Consult shown in Figure 7ly, the solar tracking tracking means of the utility model device of solar generating, its central controller comprise CPU module, analog quantity modular converter, angular transition module, serial communication module, driver module and a display unit; This CPU module is a data processing module, and it is provided with arithmetic element, comparing unit and interlock control unit; This analog quantity modular converter comprises simulated photoelectric amount modular converter, sun direct projection analog quantity modular converter and meteorological simulation amount modular converter; This driver module comprises motor drive module and Driven by Hydraulic Cylinder module; This display unit is connected with the communication interface of the CPU module of central controller, and display unit is the display with direct touch operation function; Described photoelectric sensor 4 is by the comparing unit composition data transmission channel of simulated photoelectric amount modular converter and CPU module; Described sun direct projection transducer 5 is by the arithmetic element composition data transmission channel of sun direct projection analog quantity modular converter and CPU module; Described meteorological sensor connects the 8 interlock control unit composition data transmission channels by meteorological simulation amount modular converter and CPU module; Described GPS global location device 7 is by the arithmetic element composition data transmission channel of serial communication module and CPU module; Described azimuth sensor 61 and elevation angle transducer 62 are by the arithmetic element composition data transmission channel of angular transition module and CPU module; The frequency setting end of the reductor frequency converter that described drive motors 1041 connects is by the interlock control unit composition data transmission channel of motor drive module and CPU module; The electromagnetically operated valve of described hydraulic cylinder 11 is by the interlock control unit composition data transmission channel of Driven by Hydraulic Cylinder module and CPU module.
The use of the solar tracking tracking means of the utility model device of solar generating, behind the starting up, time and the geographic factor about position of sun that is provided by GPS global location device at first is provided central controller, and calculate solar hour angle, declination angle, and the same day locality elevation angle, the azimuth of sunrise, sunset, day upper transit, hours of daylight, maximum height angle and the current sun, when busy value of date of arrival current time, solar energy condenser lens resets to the equilbrium position; Busy but still do not arrive sunrise during the time in date of arrival current time, this solar tracking tracking means remains on the equilbrium position always; If the hours of daylight between sunrise and sunset, the parameter that central controller then provides according to GPS global location device calculates at that time position of sun automatically according to the horizontal coordinate formula of the sun, and shows on display screen;
Meanwhile central controller reads in the direct solar radiation value from the direct solar radiation transducer 5 that is installed on the platform, and on display screen, show, central controller calculates the solar energy of solar tracking tracking means acquisition and the theoretical value of energy output in view of the above, and transfers to upper power generation control;
At this moment, the solar tracking tracking means enters the automatic tracking mode of bidimensional, under this state, the control solar energy condenser lens is followed the trail of rapidly to current position of sun earlier, gather sun direct projection value by the direct solar radiation instrument afterwards, to judge whether the cloudy day, cloud or other covering are arranged, if the sun direct projection value that collects is less than the set point of this solar tracking tracking means, then the solar tracking tracking means is out of service, when the set point of the sun direct projection value that collects greater than this solar tracking tracking means, then control the theoretical value operation by the solar motion track of this solar tracking tracking means, be that the per minute central controller all changes according to the angle of the track of sun that calculates, carry out the Driven by Hydraulic Cylinder module of vertical height and position rotation and the motor drive module transmission drive signal that controlling platform 2 is carried out the level orientation rotation to controlling platform 2 synchronously, make this solar tracking tracking means realize the azimuth, the angle and direction of elevation angle both direction changes.
The azimuth angular encoders and the elevation angle encoder of this solar tracking tracking means absolute value type in service detect in real time by the angle to the platform actual motion, central controller compares the theoretical value of the platform actual motion angle that calculates and the actual angle value of the azel that angular transducer collects, judge according to the positive negative value that differs that obtains again, controlling platform is carried out the drive motors or the controlling platform of azimuth rotation and carry out the highly traffic direction of the hydraulic means of rotation, the running time and the speed of service are adjusted, so that the solar energy condenser lens that is installed on the platform can more desirably be aimed at the position of the sun, thereby obtain maximum solar energy; Photoelectric sensor detects the error of solar energy condenser lens and position of sun and feeds back central controller, behind end of run of solar tracking tracking means, the sun physical location deviate that central controller calculates according to the photoelectric sensor detected value, and in these errors of correction in service next time; This solar tracking tracking means is a circulation primary every about 1 minute.
This solar tracking tracking means central controller in service can also read in the meteorologic signal that meteorological sensor is gathered at any time, and shows at display.The meteorological sensor of the utility model embodiment setting is wind speed atmospherium, snow depth atmospherium and rainfall atmospherium, when the snow depth that reads in, rainfall, wind velocity signal surpass the set point of solar tracking tracking means, central controller sends alarm signal, the while central controller will be controlled the solar tracking tracking means and stop to follow the tracks of, and solar energy condenser lens is moved to home.
Central controller connects a display that is provided with the touch operation function, operation interface can demonstrate sun two dimensional motion track data, the actual value that wherein shows elevation angle and azimuth calculating value and the operation of this solar tracking tracking means in the horizontal system of coordinates, demonstrate in the equatorial system of coordinates declination and the time angular data, the time difference, true solar time and the tracking time and the basic observation data of the sun that show the observation place simultaneously, data as sunrise, sunset, hours of daylight and the maximum height angle of locality on the same day, display also provides the basic observation data of the sun, meteorological data etc.; Operating personnel can be on display screen direct manual operation solar tracking tracking means, the running of test solar tracking tracking means and handle the special circumstances that occur; Display screen also provides all data relevant with solar tracking tracking means ruuning situation such as warning message, the inquiry of warning resume, real-time curve, data sheet.
The operation principle of the solar tracking tracking means of the utility model device of solar generating:
1, this device adopts GPS (global location device) that the accurate geographic longitude and latitude position of sun local time is provided, the geography that central controller then provides according to GPS, time parameter are determined instant position of sun, can guarantee solar tracking tracking means location and the high accuracy and the high reliability of following the tracks of operation.The parameter that GPS (global location device) provides is delivered in the arithmetic element of CPU module by the serial communication module.
2, the solar tracking of this device tracking is by adjusting the shift position of solar power generation platform, driving the solar energy condenser lens that is installed on the platform and can more desirably aim at the position of the sun, thereby obtain maximum solar energy; The platform horizontal direction is rotated and is realized by drive motors friction-driven guide rail, the rotating speed of drive motors is to be finished by the Frequency Converter Control that reducing motor connects, the rotating speed of controlling platform thus, solar energy condenser lens is to be array to be positioned on the platform, therefore drive the drive motors running simultaneously by symmetrically arranged two reducing motors, and then drive platform along with moving of level orientation carried out in the motion of driving guide rail, the orientation that platform moves horizontally is to finish by the azimuth angular encoders control of guide rail in being arranged on, interior guide rail is connected with the encoder wheel friction, when interior guide rail moves, the drive friction pulley rotates, and makes encoder rotate and send signal simultaneously and reaches central controller; It is to be driven center rod and realized by the push rod of hydraulic means (hydraulic cylinder) that the elevation angle of platform vertical direction moves, because after being arranged on the center rod butt joint of a plurality of mutual correspondences on the platform solar heat transfer tube, make the solar energy condenser lens of array adjust the position by the action of center rod, the action of center rod is that the promotion by the hydraulic jack push rod realizes, the start and stop of center rod operation and the direction of operation are controlled by the electromagnetically operated valve that is connected between central controller and the hydraulic jack; The actual motion angle of platform horizontal direction and vertical direction is to monitor in real time and locate by absolute value type azimuth angular encoders and elevation angle encoder, this absolute value type angular encoder has the current failure memory function to run location, need not to seek initial point when re-powering, can guarantee real-time and the stationarity moved; The data that azimuth sensor 61 and elevation angle transducer 62 detect are delivered to the arithmetic element of CPU module by the angular transition module, simultaneously arithmetic element is calculated solar azimuth and elevation angle automatically according to the horizontal coordinate formula of the sun, and Driven by Hydraulic Cylinder module and motor drive module is sent the parameter of platform actual motion.Platform is out of service when the real time data of azimuth and elevation angle sensor is consistent with the arithmetic element calculated value.What photoelectric sensor detected is the actual error that platform is followed the tracks of the sun, and its data pass analog conversion module by photoelectricity and are sent to comparing unit, and in service next time, this error is compensated when computed altitude angle or the azimuthal numerical value by arithmetic element.
3, the photoelectric sensor installed of this device can the indicators track actual error, error amount reaches CPU module comparing unit in the central controller by simulated photoelectric amount modular converter passage, central controller is in view of the above in service adjustment next time then, thereby eliminates immediate error and the accumulated error that causes because of factors such as calculating, mechanical movements.
4, the sun direct projection transducer of this device installation, can gather the direct solar radiation value, and this information is uploaded to the arithmetic element of central controller by sun direct projection analog quantity modular converter passage, central controller calculates and indicates the solar energy theoretical value that this device obtains in view of the above, when this solar energy theoretical value during, promptly out of service less than the direct solar radiation minimum value set.
5, this device is installed meteorological sensor, the meteorological data of this meteorological sensor collection is uploaded to the interlock control unit of central controller by meteorological simulation amount modular converter passage, and show in real time, when this meteorological data surpasses maximum meteorological value of setting, illustrate and exceedingly odious weather occurs, promptly stop to follow the tracks of operation, and condenser is run to the equilbrium position.
6, the central controller main body of this device is programmable controller (PLC), and this programmable controller (PLC) can read in all signals and data by input channel, and is controlled by output channel; Central controller is made clock synchronization by communication interface and GPS global location device, and calculates the sun azimuth and the elevation angle of position at that time automatically according to the horizontal coordinate formula of the sun.
7, this device central controller CPU module is connected with display unit, and this display unit is the display with direct touch operation function, can show real-time status, parameter, warning message and chart, can carry out manual operation for the operator simultaneously.
The CPU module that central controller relates in the utility model, analog quantity modular converter, angular transition module, serial communication module, driver module and display unit, and photoelectric sensor, sun direct projection transducer, angular encoder, GPS global location device, meteorological sensor, reductor and frequency converter are the commercially available prod; The content that does not describe among the utility model embodiment is a prior art.
The advantage of the solar tracking tracking means of the utility model device of solar generating: its central controller comprises Programmable Logic Controller (PLC) and the photoelectric sensor that is connected with this Programmable Logic Controller (PLC), sun direct projection transducer, angular transducer, GPS global location device and meteorological sensor; GPS global location device can provide very high geographical longitude and latitude of precision and local time data to position of sun, makes the solar tracking tracking means can determine instant position of sun; Be provided with to tracking means actual motion angle feedback adopt high-resolution angular encoder to detect and adjust and to tracking means to two closed loop feedback structures that the actual tracking error feedback of the sun adopts photoelectric sensor to indicate, guarantee to follow the trail of the precision of moving; Be provided with sun direct projection transducer as the operation foundation, when the sun direct projection value of sun direct projection sensor during less than the set point of solar tracking tracking means, central controller is promptly controlled and is stopped to follow the tracks of operation; Meteorological sensor can be protected the operation of solar tracking tracking means, under the situation of bad weather, sends alarm signal, makes central controller controls solar tracking tracking means operation suspension; Have solar tracking and follow the tracks of the precision height, reliable effect operates steadily.
The above, it only is preferred embodiment of the present utility model, be not that the utility model is done any pro forma restriction, every foundation technical spirit of the present utility model all still belongs in the scope of technical solutions of the utility model any simple modification, equivalent variations and modification that above embodiment did.
Claims (8)
1, a kind of solar tracking tracking means of device of solar generating comprises solar power generation tower (1) and platform (2), and platform (2) is provided with solar energy condenser lens (21), solar collector (22) and solar heat transfer tube (23); It is characterized in that, central controller (3) is set in the described solar power generation tower (1), and this central controller (3) comprises that the CPU module reaches and photoelectric sensor (4), sun direct projection transducer (5), angular transducer, GPS global location device (7) and the meteorological sensor (8) of CPU module composition data transmission channel; Described solar power generation platform (2) is arranged on solar power generation tower (1) top by brace summer (9) and guide rail, this brace summer (9) is arranged on the outside wall surface on solar power generation tower (1) top, guide rail is fixed on the brace summer (9) and is positioned at solar power generation platform (2) bottom, photoelectric sensor (4), sun direct projection transducer (5) and meteorological sensor (8) are set on this solar power generation platform (2), are provided with a plurality of center rod 24 between the solar heat transfer tube (23) of solar power generation platform (2); Described angular transducer comprises azimuth sensor (61) and elevation angle transducer (62), this azimuth sensor (61) be fixed on solar power generation tower (1) top and with the guide rail interlock, this elevation angle transducer (62) is arranged on solar power generation platform (2) the solar heat transfer tube (23).
2, the solar tracking tracking means of device of solar generating according to claim 1 is characterized in that, described guide rail is that cross section is I-shaped ring-shaped guide rail, and it comprises outer guide, interior guide rail (103) and driving guide rail (104); This outer guide comprises outer quiet guide rail (101) and outer moving guide rail (102), the lower plane of outer quiet guide rail (1011) is fixed on the end of brace summer (9) away from solar power generation tower (1), fixing a plurality of pulley brackets (1013) are gone up on the last plane (1012) of outer quiet guide rail, pulley (1014) is set on this pulley bracket (1013), the lower plane of outer moving guide rail (102) is placed on a plurality of pulleys (1014), and the last plane of moving guide rail (102) is positioned at solar power generation platform (2) bottom outward; Guide rail (103) is fixed on the top of solar power generation tower (1) in being somebody's turn to do by a plurality of support pulley bases (1031) and location pulley base (1033), a plurality of support pulley bases (1031) and location pulley base (1033) are to be crisscross arranged, support to be provided with on the pulley base (1031) and support pulley (1032), location pulley (1034) is set on the location pulley base (1033), the lower plane of interior guide rail (103) is placed on a plurality of support pulleys (1032), the last plane of interior guide rail (103) is positioned at solar power generation platform (2) bottom, and a plurality of location pulleys (1034) contact with the side slip of interior guide rail (103); This driving guide rail (104) drives by plural drive motors (1041) and drives solar power generation platform (2) rotation, this drive motors (1041) is fixed between adjacent two brace summers (9) by motor bearing (1042), the driving shaft of drive motors (1041) is provided with friction pulley (1043), the lower plane of this driving guide rail (104) is placed on the friction pulley (1043), the last plane of driving guide rail (104) is positioned at solar power generation platform (2) bottom, and drive motors (1041) is connected with Programmable Logic Controller (PLC).
3, the solar tracking tracking means of device of solar generating according to claim 1 is characterized in that, described azimuth sensor (61) and elevation angle transducer (62) are absolute value type angular encoder; Described meteorological sensor (8) is one or more in wind speed atmospherium, snow depth atmospherium, rainfall atmospherium, the gentle pressure atmospherium of temperature atmospherium.
4, according to the solar tracking tracking means of claim 1 or 3 described device of solar generating, it is characterized in that, described solar power generation platform (2) is a joist body, meteorological sensor (8) is arranged on the joist body, and photoelectric sensor (4) and sun direct projection transducer (5) are arranged on the solar heat transfer tube (23) that is fixed in solar power generation platform (2).
5, according to the solar tracking tracking means of claim 1 or 3 described device of solar generating, it is characterized in that, described azimuth sensor (61) is an absolute value type angular encoder, this encoder is fixed on solar power generation tower (1) top by supporting seat (611), friction pulley of encoder (612) and interior guide rail (103) friction interlock.
6, the solar tracking tracking means of device of solar generating according to claim 1, it is characterized in that, be provided with a plurality of center rod 24 between every adjacent two the solar heat transfer tubes (23) of described solar power generation platform (2), the center rod 24 of correspondence position butt joint mutually is integral; This center rod (24) is connected with the push rod (111) of hydraulic cylinder (11), and this hydraulic cylinder (11) is provided with electromagnetically operated valve and is fixed on the solar power generation platform (2) by bearing (112).
7, the solar tracking tracking means of device of solar generating according to claim 1 is characterized in that, the input of described drive motors (1041) connects reductor, and this reducing motor connects frequency converter.
8, according to the solar tracking tracking means of described device of solar generating one of in the claim 1 to 7, it is characterized in that described central controller comprises CPU module, analog quantity modular converter, angular transition module, serial communication module, driver module and a display unit; This CPU module is a data processing module, and it is provided with arithmetic element, comparing unit and interlock control unit; This analog quantity modular converter comprises simulated photoelectric amount modular converter, sun direct projection analog quantity modular converter and meteorological simulation amount modular converter; This driver module comprises motor drive module and Driven by Hydraulic Cylinder module; This display unit is connected with the communication interface of the CPU module of central controller, and display unit is the display with direct touch operation function; Described photoelectric sensor (4) is by the comparing unit composition data transmission channel of simulated photoelectric amount modular converter and CPU module; Described sun direct projection transducer (5) is by the arithmetic element composition data transmission channel of sun direct projection analog quantity modular converter and CPU module; Described meteorological sensor connects (8) interlock control unit composition data transmission channel by meteorological simulation amount modular converter and CPU module; Described GPS global location device (7) is by the arithmetic element composition data transmission channel of serial communication module and CPU module; Described azimuth sensor (61) and elevation angle transducer (62) are by the arithmetic element composition data transmission channel of angular transition module and CPU module; The frequency setting end of the reductor frequency converter that described drive motors (1041) connects is by the interlock control unit composition data transmission channel of motor drive module and CPU module; The electromagnetically operated valve of described hydraulic cylinder (11) is by the interlock control unit composition data transmission channel of Driven by Hydraulic Cylinder module and CPU module.
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| CN 200820141653 CN201263130Y (en) | 2008-08-18 | 2008-08-18 | Sun tracking device for solar generating device |
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| CN 200820141653 CN201263130Y (en) | 2008-08-18 | 2008-08-18 | Sun tracking device for solar generating device |
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