CN107359852A - Low-power consumption hydraulic-driven solar panel autotracker and its control method - Google Patents

Abstract

The invention discloses a low-power hydraulically driven solar panel automatic tracking device, which includes a bracket, a solar panel, and a controller. The solar panel is installed on the bracket, and the bracket is provided with a first rotating shaft and a second rotating shaft that are perpendicular to each other. The ends of the first rotating shaft and the second rotating shaft are connected to the bracket angle adjusting device, the other end of the first rotating shaft is hingedly connected to the fixed column, and the angle sensor is arranged on the bracket angle adjusting device. The invention is simple in structure and practical, and can change the current situation that the solar power generation system adopts fixed installation, adopts hydraulic drive, can realize the tracking of the sun under the action of low energy consumption, and the installed wind sensor has good protection measures, ensuring It improves the safety of the solar power generation system and can be widely used in roof and large trackable solar power generation systems.

Description

Low power consumption hydraulically driven solar panel automatic tracking device and control method thereof

technical field

The invention belongs to the technical field of solar photovoltaic power generation equipment, and in particular relates to a low-power hydraulically driven solar battery panel automatic tracking device and a control method thereof.

Background technique

Because the existing solar automatic tracking device generally adopts the structure of double motors and double shafts, not only the system is complicated, the stability is poor, the energy consumption is high, and sometimes even the output of the solar battery is not enough to drive the tracking mechanism, so the actual usable value is low.

Contents of the invention

The purpose of the present invention is to provide a low-power hydraulically driven solar panel automatic tracking device and its control method, so as to overcome the deficiencies of the prior art.

The technical solution of the present invention to solve the technical problem is: a low-power hydraulically driven solar panel automatic tracking device, including a bracket, a solar panel, and a controller. The first rotating shaft, the second rotating shaft, the ends of the first rotating shaft and the second rotating shaft are connected to the bracket angle adjusting device, the other end of the first rotating shaft is hingedly connected to the fixed column, and the angle sensor is arranged on the bracket angle adjusting device.

The bracket angle adjusting device is an electro-hydraulic jack.

The four corners of the bracket are provided with protection chains.

The electrohydraulic jack is connected with a controller through a data line.

It also includes a wind sensor for measuring wind speed and wind direction, and the controller sets a strong wind protection mode.

The signal received by the wind sensor is transmitted to the touch screen display through the controller.

In the control method of the above automatic tracking device for solar panels, the controller is a computing center, which uses astronomical algorithms and photoresistors to dynamically track the angle changes of solar panels, and the bracket angle adjustment device connected to the first rotating shaft is equipped with an azimuth angle sensor. The bracket angle adjustment device connected to the second shaft is equipped with a height angle sensor, and the controller outputs a deviation signal through the azimuth detection circuit, and after processing, it drives the first shaft bracket angle adjustment device to drive the battery panel to rotate in the east-west direction to adjust the sun azimuth; The controller outputs a deviation signal through the altitude angle detection circuit, and after processing, it drives the angle adjustment device of the second rotating shaft bracket to drive the battery panel to rotate in the north-south direction, so as to adjust the sun altitude angle.

In the control method of the automatic solar panel tracking device described above, the angle adjustment range of the solar panel in the east-west direction is -135° to +135°, and the angle adjustment range in the north-south direction is -47° to +47°.

The beneficial effects of the present invention are:

The solar battery panel automatic tracking device of the present invention is simple in structure and practical, and can change the current situation that the current solar power generation system adopts a fixed installation, adopts hydraulic drive, and can realize tracking of the sun under the action of low energy consumption, and the installed wind sensor It has good protection measures to ensure the safety of the solar power generation system, and can be widely used in roof and large trackable solar power generation systems.

Description of drawings

Fig. 1 is a schematic diagram of the structure of the solar panel automatic tracking device of the present invention.

Fig. 2 is a schematic diagram of the connection structure between the spherical hinge and the fixed column of the present invention.

In the accompanying drawings, each label represents as follows:

1 bracket; 2 rotating shaft; 3 spherical hinge; 4 hinge; 5 azimuth and azimuth electro-hydraulic jack; screen display; 12 fixed columns; 13 bearings.

detailed description

Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

In describing the present invention, it is to be understood that the terms "central", "lateral", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", The orientation or positional relationship indicated by "outside" is based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, Constructed and operative in a particular orientation and therefore are not to be construed as limitations of the invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be interpreted as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. Thus, a feature defined as "first" and "second" may explicitly or implicitly include one or more of these features. In the description of the present invention, unless otherwise specified, "plurality" means two or more.

In the description of the present invention, it should be noted that the terms "installation", "connection" and "connection" should be interpreted in a broad sense, for example, may be a fixed connection, unless otherwise specified and limited. It can also be a detachable connection or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediary, and it can be the internal communication of two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention in specific situations.

Implementation example one

Referring to Figures 1-2, the low-power hydraulically driven solar panel automatic tracking device of the present invention includes a bracket 1, a rotating shaft 2, a hinge 4, a hydraulic jack, a wind sensor 7, a controller 8, a touch screen display 11, a height Angle sensor 14 and azimuth sensor 15, solar panel 10 is installed on the support 1, the four corners of support 1 are provided with protection chain 9, the center of support 1 is provided with rotating shaft 2, and rotating shaft 2 is connected with electrohydraulic The jack, the electrohydraulic jack is connected to the controller 8 through the data line, and the signal received by the wind sensor 7 is transmitted to the touch screen display 11 through the controller 8 .

The rotating shaft 2 is a T-shaped shaft, one section of the vertical shaft is fixed on the fixed column 12 through a spherical hinge 3, and the other end is connected with an elevation angle and azimuth electro-hydraulic jack 6 through a bearing 13, and one end of the horizontal shaft is welded on the vertical shaft. The center of the center and the other end are connected with an azimuth and azimuth electro-hydraulic jack 5 through a hinge 4, and are used to adjust the azimuth of the sun through the control of the two electro-hydraulic jacks.

The elevation angle and azimuth electro-hydraulic jack 6 drives the battery panel to rotate within the range of -47°～+47° in the north-south direction, so as to adjust the sun elevation angle.

The azimuth and azimuth electro-hydraulic jack 5 drives the battery board to rotate within the range of -135° to +135° in the east-west direction to adjust the azimuth of the sun.

The wind sensor 7 can be used to measure wind speed and wind direction, and in windy weather, turn on the protection mode to prevent the solar power generation system from being damaged by the wind.

The controller 8 is a computing center, which can use astronomical algorithms and photoresistors to dynamically track the angle changes of the solar panels.

The protection chain 9 is used for loose protection of the solar panel structure and for fixing the solar panel.

The above-mentioned implementation method of automatic tracking and tracking of solar panels uses the azimuth detection circuit to output a deviation signal, which can drive the azimuth and azimuth electro-hydraulic jacks to drive the solar panels to rotate within the range of -135° to +135° in the east-west direction to adjust The sun azimuth; the altitude angle detection circuit can control the altitude angle and azimuth electro-hydraulic jack to drive the battery panel to rotate in the range of -47°～+47° in the north-south direction to adjust the sun altitude angle; through the interlocking of two electro-hydraulic jacks The mechanism is controlled, that is, the comprehensive adjustment and control of the east-west and north-south directions of the battery panels are realized.

The controller 8 has a built-in perpetual calendar clock. After 8 o'clock in the evening, it is determined that it has darkened and entered the night. The controller 8 resets the azimuth, azimuth, and azimuth electro-hydraulic jacks 5 and altitude angle, azimuth, and electro-hydraulic jacks 6 to prepare for the next day's action, one every day. Cycle, cycle and cycle.

The following is an example of practical verification of this embodiment: a photovoltaic power generation system is installed on the roof of Building No. 8 of the training building of Shunde Vocational and Technical College, and its latitude and longitude coordinates are (113.335459, 22.81712). minutes (solar time 11:46), using the astronomical method, the corresponding elevation angle and azimuth angle can be calculated in the controller 8 as (44 degrees 44 minutes, -4 degrees -45 minutes). The controller 8 compares the current altitude angle and azimuth angle read from the altitude angle sensor 14 and the azimuth angle sensor 15, and outputs a positive or negative adjustment voltage according to the comparison between the calculation result and the measured value to drive the electrohydraulic jacks 5 and 6 to move , so that the azimuth and elevation angles of the solar cell panel 10 are consistent with the calculation results. Through adjustment, the solar cell panel 10 can be adapted to the position of the sun in both azimuth and altitude, so as to obtain the best solar energy input and the maximum output power.

Embodiment two

In this embodiment, on the basis of the first embodiment, the solar panel automatic tracking device adds a windproof protection function. In windy weather, the wind speed value measured by the wind sensor 7 is transmitted to the controller 8, and the controller compares it with the set safety threshold. Angle and azimuth electrohydraulic jacks 6), allow them to return to a safe position and lock them tightly, preventing the large-area solar panel 10 from being destroyed and damaged by wind. A protective chain is a further measure of protection in case the hinges are damaged by strong winds.

Although the embodiments of the present invention have been shown and described, those skilled in the art should understand that various changes, modifications, substitutions and modifications can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the claims and their equivalent replacements, and improvements made without creative work shall be included in the protection scope of the present invention.

Claims (8)

1. a kind of low-power consumption hydraulic-driven solar panel autotracker, including support, solar panel, control Device, solar panel are rack-mount, it is characterised in that：Cross one another vertical first rotating shaft, second are set on support Rotating shaft, first rotating shaft, the end connecting bracket angle regulator of the second rotating shaft, the other end of first rotating shaft are hingedly connected at admittedly On fixed column, angular transducer is provided with the support angle adjusting device.

2. solar panel autotracker according to claim 1, it is characterised in that：The support angle regulation dress It is electric hydraulic lifting jack to put.

3. solar panel autotracker according to claim 1 or claim 2, it is characterised in that：Four angles of support are set It is equipped with protection chain.

4. solar panel autotracker according to claim 3, it is characterised in that：Electric hydraulic lifting jack passes through Data wire is connected with controller.

5. solar panel autotracker according to claim 4, it is characterised in that：Also include being used to determine wind speed With the wind detection sensor of wind direction, the controller sets high wind protected mode.

6. solar panel autotracker according to claim 5, it is characterised in that：Received by wind detection sensor Signal touch screen displays are sent to by controller.

7. the control method of solar panel autotracker according to claim 1, it is characterised in that：The control Device is calculating center, and the angle change of solar panel, first rotating shaft institute are tracked using astronomical algorithm and photo resistance dynamic The support angle adjusting device of connection sets orientation angles sensor, and the support angle adjusting device that the second rotating shaft is connected is set Elevation angle sensor, controller detect circuit output deviation signal by azimuth, and first rotating shaft support is driven after processing Angle regulator drives cell panel to be rotated in east-west direction, to adjust solar azimuth；Controller detects electricity by elevation angle Road output bias signal, the second rotary shaft rack angle regulator is driven to drive cell panel to be rotated in North and South direction after processing, To adjust sun altitude.

8. the control method of solar panel autotracker according to claim 7, it is characterised in that：Cell panel exists The angle of regulation range of east-west direction is -135 °~+135 °, is -47 °~+47 ° in the angle of regulation range of North and South direction.