New type solar energy inclination angle single-shaft tracking system
Technical field
The application's relate generally to field of photovoltaic power generation, the particularly tracking control system of photovoltaic power generation apparatus.
Background technology
Solar energy power generating is that by photovoltaic, changing transform light energy is electric energy by using the formed array of solar photovoltaic assembly to accept the sunshine of incident, and the electric energy that collection produces is for the technology of using.That this technology has is pollution-free, cost is low, the continuable advantage of generating electricity, and the strong torrid zone or desert area has increasing utilization in the illumination of all parts of the world.
At present, in solar photovoltaic generation system, disposed solar tracking system.By following the tracks of in real time solar motion, make sunshine be directed to the light plane of photovoltaic module, can increase the solar radiation quantity that photovoltaic module can receive, improve the overall generated energy of solar photovoltaic generation system.
In simple terms, the principle that realizes of photovoltaic power generation apparatus automatic tracking system is that tracking transducer is arranged on photovoltaic module.When radiation direction changes, tracking transducer output offset signal, tracker comes into operation, adjust the direction of photovoltaic module, make tracking transducer again reach equilibrium state (while being met at right angles by the light plane of photovoltaic module and incident sunray) and decommission, complete once and adjust.Constantly adjust so in real time and just can guarantee that photovoltaic array component follows the sun constantly along the running orbit of the sun, the raising gross generation.Automatic tracking system also can be provided with that preventing stray light disturbs and night tracking circuit, and with hand control switch, to facilitate debugging.
Traditional photovoltaic power generation apparatus autotrack mode generally comprises: single shaft from motion tracking, step-by-step movement from motion tracking, double-axis tracking etc.Uniaxiality tracking only has a rotary freedom, and double-axis tracking has two rotary freedoms.But these modes still can't realize the maximum absorption to sunshine, lower to the utilization ratio of sunshine; And can only realize that single control system controls single photovoltaic module, with high costs.
Therefore, at present the utmost point needs a kind of applied widely, precision is high and security performance is high new type solar energy inclination angle single-shaft tracking method.
The utility model content
For the defect of above prior art, the application's purpose at least is to provide a kind of sun power inclination angle single-shaft tracking system.
According to the application's first aspect, a kind of sun power inclination angle single-shaft tracking system has been proposed, it is characterized in that, comprising: controller (1); Gearing (2), be connected to described controller, and the rotation axis (5) that the control signal of exporting according to described controller drives the photovoltaic tracking subsystem is rotated; Several are the photovoltaic tracking subsystem independently, arrangement in column each other, and each photovoltaic tracking subsystem includes: photovoltaic module (3); Fixing high support column (6) and fixing low support column (7), its capital is separately installed with bearing arrangement (13) to be flexibly connected with photovoltaic module (3); Wire rope draws high system (4), the wire rope stiff end (9) that comprises wire rope and be connected to photovoltaic module (3); Rotation axis (5), the wire rope that described wire rope draws high system (4) repeatedly was wound around described rotation axis; Hooks coupling universal coupling (11), by several independently the rotation axis of photovoltaic tracking subsystem (5) be connected to each other; Wherein, the rotation axis of first tracing subsystem (5) is connected to gearing (2) and controller (1) by Hooks coupling universal coupling (11), make controller (1) drive rotation axis (5) by gearing (2) and rotate, make wire rope draw high the photovoltaic module that the wire rope up-down stretch in system (4) connected to affect and rotated.
Second aspect according to the application, described sun power inclination angle single-shaft tracking system becomes north-south to place, and be provided with the solar motion tracking transducer on photovoltaic module (3), the output signal of controller (1) based on the solar motion tracking transducer exported control signal to regulate in real time the angle of photovoltaic module (3) thus, driving rotation axis (5) by gearing (2) rotates, make wire rope draw high system (4) drive photovoltaic module (3) and carry out transmeridional rotation, regulate the East and West direction inclination angle of photovoltaic module (3) and follow the tracks of sun's motion to realize East and West direction, to improve generating efficiency.
The third aspect according to the application, fixing high support column (6) and fixing low support column (7) are the triangle fixed support posts of differing heights, set the angle at the inclination angle, north-south of photovoltaic module (3) by the difference in height of high support column (6) and low support column (7), make it to be optimal angle with sunshine light.
Fourth aspect according to the application, in each tracing subsystem, both sides, photovoltaic module (3) below are separately installed with wire rope stiff end (9) and fixed pulley (8), wire rope draw high system (4) steel wire penetrating fixed pulley (8) and below repeatedly be wound around rotation axis (5), and two of same wire rope is connected on same wire rope stiff end, the wire rope that forms closed loop draws high system (4).
According to the application's the 5th aspect, the wire rope of photovoltaic module (3) hung oneself 1 group of travelling block (12) and activity balancing piece (10), for keeping the tension force of wire rope control system.
The 6th aspect according to the application, controller (1) and gearing (2) can be controlled the rotation axis (5) of described several tracing subsystems simultaneously, and then drive wire rope and draw high the rotation that wire rope in system (4) is controlled the East and West direction inclination angle of a plurality of photovoltaic modulies (3) simultaneously, when realizing the East and West direction inclination angle to a plurality of photovoltaic modulies, control.
According to the application's the 7th aspect, controller (1), by gearing (2) and rotation axis (5), drives continuous rotation or intermittent stepping rotation that each photovoltaic module (3) carries out the East and West direction inclination angle.
According to the application's eight aspect, described gearing is one of following: hydraulic wireline winch, servomotor, chain system or other available kinematic trains.
According to the application's the 9th aspect, the middle line parallel of the light plane of described rotation axis and described photovoltaic module, make the wire rope between photovoltaic module and driving shaft to rotate perpendicular to rotation axis.
At least there is following technical advantage according to the sun power inclination angle single-shaft tracking system of the above-mentioned various aspects of the application: adopt inclination angle, north-south, East and West direction to rotate to follow the tracks of sunshine, make photovoltaic module and sunshine light be best angle, realize the optimal absorption utilization of sunshine, can improve the generating efficiency of 25%-35%.Simultaneously, can realize the control tracking of a set of tracking control system to a plurality of photovoltaic modulies, decrease is followed the tracks of cost.
In this article, term " connection " or " coupling " are defined as two connections between main body, but not necessarily directly connect, and also can comprise the indirect annexation realized by other intermediate nodes or equipment.
Term used herein " comprises ", " having ", " comprising " and " containing " be open connection verb.Therefore, a kind of method or device " comprise ", " having ", " comprising " or " containing " one or more steps or assembly refer to: the method or device have those one or more steps or assemblies, but be not only to there is those one or more steps or assemblies, can comprise other NM one or more steps or assembly herein yet.
Should be appreciated that the above generality of the application is described and the following detailed description is all exemplary and explanat, and be intended to provide further explanation for the application as claimed in claim.
The accompanying drawing explanation
The accompanying drawing summary
Comprise that accompanying drawing is for providing, the application further to be understood, they are included and form the application's a part, and accompanying drawing shows the application's embodiment, and with play the effect of explaining the application's principle together with this instructions.By reference to the accompanying drawings and after the embodiment to specific non-limiting the application below having read, the application's other features and advantage will become apparent.Wherein:
Fig. 1 is the configuration diagram according to the sun power inclination angle single-shaft tracking system of the application's a aspect.
Embodiment
With reference to non-limiting example shown in the drawings and that describe in detail in the following description, the application's a plurality of technical characterictics and favourable details more completely is described.And, below describe and ignored the description to known original material, treatment technology, assembly and equipment, in order to avoid unnecessarily obscure the application's technical essential.Yet, it will be understood by those skilled in the art that, while describing hereinafter the application's embodiment, describe and specific example only as explanation and unrestriced mode provides.
In the case of any possible, will mean with identical mark same or analogous part in institute's drawings attached.In addition, although the term used in the application is to select from public term, but in present specification, some mentioned terms may be that the applicant selects by his or her judgement, and its detailed meanings illustrates in the relevant portion of the description of this paper.In addition, require not only to pass through used actual terms, but the meaning that also will contain by each term is understood the application.
Fig. 1 shows a kind of new type solar energy inclination angle single-shaft tracking system according to the application's a embodiment.The side view that the right of Fig. 1 is tracker, from side view, tracker by a controller 1, gearing 2 and several independently the photovoltaic tracking subsystem formed.Further, the solar motion tracking transducer is arranged on photovoltaic module 3 and (does not illustrate in the drawings).The output signal of controller 1 based on the solar motion tracking transducer exported control signal to regulate in real time the angle of photovoltaic module 3.Gearing 2 is to drive according to the control signal of controller 1 output the equipment that the rotation axis 5 of photovoltaic tracking subsystem is rotated.Gearing 2 can adopt multiple implementation, for example, and hydraulic wireline winch, servomotor, chain system or other available kinematic trains.In one embodiment, when reality is used, the sun power inclination angle single-shaft tracking system of Fig. 1 is placed as south-north direction, and the left side of Fig. 1 side view is corresponding to south or northern, and the right side of Fig. 1 side view is corresponding to the north or south.Thus, controller 1 can be controlled photovoltaic module 3 by gearing 2 and carry out transmeridional rotation, regulates the East and West direction inclination angle to adapt to sun's motion.
The sectional view that Fig. 1 left side is tracing subsystem.Each photovoltaic tracking subsystem draws high the institutes such as system 4, activity balancing piece 10, Hooks coupling universal coupling 11 and forms by triangle fixed support post (high support column 6 and low support column 7), the wire rope rotation axis 5 of UNICOM's system, fixed pulley 8, photovoltaic module 3, travelling block 12, wire rope stiff end 9, the wire rope of two differing heights.The middle line parallel of the light plane of rotation axis 5 and photovoltaic module 3, make the wire rope between photovoltaic module and driving shaft to rotate perpendicular to rotation axis, improved rotational stability, avoids the danger that occurs that wire rope tilts to bring when rotating.From this sectional view, can be clear that, the photovoltaic module 3 in tracing subsystem is installed on the fixing high support column 6 and low support column 7 of differing heights.High support column 6 and low support column 7 are seen as triangle from section.The capital of two support columns is separately installed with bearing arrangement 13 to be flexibly connected with photovoltaic module 3, and the East and West direction of the photovoltaic module that realization is installed is rotated.In addition, photovoltaic module 3 down either side are separately installed with wire rope stiff end 9 and fixed pulley 8.Steel wire penetrating fixed pulley 8 and below repeatedly be wound around rotation axis 5, and two of same wire rope is connected on same wire rope stiff end, the wire rope that forms closed loop draws high system 4.
The embodiment according to the application, when following the tracks of control, signal based on the tracking transducer (not shown), controller 1 carries out angular adjustment in the following way: drive rotation axis 5 by gearing 2 and rotate, make wire rope draw high that wire rope in system 4 carries out up-down stretch and the moving axis 5 that rotates is rotated, wire rope affects connected photovoltaic module 3, realize that photovoltaic module 3 East and West direction continuitys are rotated or the intermittence stepping is rotated, to regulate the East and West direction inclination angle of photovoltaic module 3, make the sensitive surface angle that can change along with the angle of sun operation in a day and regulate photovoltaic module 3, guarantee among one day that the incident sunshine meets at right angles with photovoltaic module 3 light receiving surfaces all the time, increase conversion efficiency, improve generated energy.
Simultaneously, because photovoltaic module 3 is placed on the fixing high support column 6 of triangle and low 7 of two differing heights, make it naturally produce the inclination angle in a north-south, set the angle at the inclination angle, north-south of photovoltaic module 3 by the difference in height of high support column and low support column, realize winter, balance reception in summer sunshine, change significantly area at summer in winter sun angle, the angular adjustment mode by this inclination angle, north-south can improve generating efficiency more than 25%.
According to an additional embodiment, the wire rope of photovoltaic module 3 hung oneself one group of travelling block 12 and activity balancing piece 10, for keeping the tension force of wire rope control system, improve the degree of stability of whole tracker, strengthens wind loading rating.
According to another additional embodiment, a plurality of tracing subsystem longitudinal arrangements are in column, for example can arrange according to the mode shown in the right of Fig. 1.Each tracing subsystem has rotation axis separately to be connected with photovoltaic module separately by wire rope, between the rotation axis of each tracing subsystem, with Hooks coupling universal coupling 11, be connected, and the rotation axis of the tracing subsystem of first row (tracing subsystem of the leftmost side as shown in Figure 1) is connected to gearing and controller by Hooks coupling universal coupling 11.Thus, by Hooks coupling universal coupling 11, a plurality of tracing subsystems are connected together.Like this, the rotation axis 5 that the controller 1 of single group and gearing 2 can be controlled a plurality of tracing subsystems simultaneously, and then drive wire rope and draw high the rotation that wire rope in system 4 is controlled the East and West direction inclination angle of a plurality of photovoltaic modulies 3 simultaneously, realization is controlled to the East and West direction inclination angle of a plurality of photovoltaic modulies the time, significantly improve control efficiency, reduce costs.
The new type solar energy inclination angle single-shaft tracking system provided according to the application's above all embodiment has following advantage:
One, by the East and West direction tilt adjustment of photovoltaic module, realized the operation of the East and West direction real-time follow-up sun, guaranteed that photovoltaic module among one day, all the time in best light angle, has improved conversion efficiency, improved generated energy;
Two, control inclination angle, the north-south angle of photovoltaic module by the triangle fixed support post of two differing heights, make it to be optimal angle with sunshine light, realize winter, summer, the balanced reception sunshine, significantly improved seasonal generating efficiency;
Three, the activity balancing piece has been guaranteed the tension force that wire rope is fixing, improves the degree of stability of whole system, strengthens wind loading rating;
Four, by single controller and the rotation axis many groups tracing subsystem together with control linkage simultaneously, when having realized a plurality of photovoltaic module, the angular adjustment at East and West direction inclination angle, significantly improve control efficiency, reduces costs.
In view of present disclosure, can be in the situation that do not carry out disclosing and claimed all methods in undo experimentation execution the application.Although described according to the preferred embodiment the application's apparatus and method, but those of ordinary skills can be apparent, can apply multiple modification to the method described in the application and step or the sequence of steps of method, and not deviate from the application's concept, spirit and scope.In addition, can make modification to disclosed device, and get rid of the assembly that can describe from the application or substitute a plurality of assemblies, and realize same or analogous result.Apparent all these similar the substituting and revise of those of ordinary skills are regarded as in the application's who is limited by claims spirit, scope and concept.