KR100926108B1 - Solar energy integrated device interlock control system - Google Patents

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a solar energy integrated device interlocking control system, wherein an encoder is coupled to a north-south rotational support shaft and an east-west rotation support shaft on a solar tracking device equipped with a solar tracking sensor unit, and a plurality of solar energy sources are provided. Combine the encoders with the north-south rotation support shaft and the east-west rotation support shaft on the integrated device, and interlock the solar integrated devices with the solar tracking device and the encoders on the solar energy integrated device interconnected via a PLC in the control box. By constructing a control system, it is possible to interlock control a plurality of solar energy integrated devices with one sun tracking sensor unit and a control box.

Solar tracking, photovoltaic, solar energy, interlock control.

Description

Linkage control system for solar energy integrated device {a linkage control system for solar beam energy accumulating apparatuses}

The present invention relates to a solar energy integrated device interlocking control system, and more particularly, to a system capable of interlocking control of a plurality of solar energy integrated devices with one solar tracking sensor unit and a control box.

In other words, it is an invention belonging to the field of operation control technology related to the solar energy integrated device which converts sunlight as the main alternative energy into electrical energy.

As the depletion of petroleum energy and environmental pollution have become a serious problem for the entire human race, countries around the world are concentrating on developing alternative energy.

Energy to be developed or researched The most representative example is solar energy. When solar light is received, solar panels having a large number of solar cells having a property of generating electric current (photoelectric effect) are directed toward the sun. The optical energy is integrated.

The solar energy accumulation mechanism in this manner is the basic principle underlying solar energy-using devices as alternative energy, and in the solar energy related field, at least, how can the maximum solar energy be integrated? There is active research on whether there is any.

In order to accumulate maximum solar energy, basically, a separate sensor unit should be used to track the movement of the sun so that the solar panel continues to face the sun during the day.

The sensor unit that tracks the movement of the sun, i.e. the sun tracking sensor unit, senses the inclination of the sun relative to its surface and serves to output a signal to a computer device in the control box, i.e. a programmable logic controller (PLC).

The solar energy accumulator, which comprises a solar panel and a solar tracking sensor unit, also includes a north-south drive motor and an east-west drive motor, and the axis of rotation of these drive motors is the north-south rotation of the solar panel support. The support shaft and the east-west rotation support shaft are respectively connected.

The PLC provided in the control box constituting the solar energy integrated device calculates the north-south and / or east-west rotational demands of the solar panel based on the signal from the solar tracking sensor unit to control signals to the respective drive motors. Outputs

Of course, as the north-south driving motor and / or east-west driving motor are operated by the control signal from the PLC, the solar panel rotates in the north-south direction and / or the east-west direction toward the sun.

On the other hand, it is common to install a plurality of solar energy accumulators at a single point. When a plurality of solar energy accumulators are installed, the same number of solar tracking sensor units and PLCs as the solar energy accumulators, that is, computers, are installed. A device is needed.

In other words, as the number of solar energy integrated devices to be installed increases, the cost associated with the solar tracking sensor unit and the expensive PLC increases.

SUMMARY OF THE INVENTION The present invention has been made to solve such a conventional problem, and an object of the present invention is to provide a system capable of interlocking control of a plurality of solar energy integrated devices using one solar tracking sensor unit and a control box, that is, a PLC. .

An object of the present invention as described above, by building a single solar tracking device equipped with a solar tracking sensor unit and a simultaneous control system for controlling a plurality of solar energy integrated devices without a solar tracking sensor unit as a PLC in a single control box. Is achieved.

In other words, the solar tracking device interlocking control system of the present invention includes a single solar tracking device equipped with a solar tracking sensor unit, and having an encoder coupled to the north-south rotational support shaft and the east-west rotational support shaft, respectively; A plurality of solar energy accumulators each having an encoder coupled to a north-south rotation support shaft and an east-west rotation support shaft; The pulse signal values from the solar tracking device side encoders and the pulse signal values from the plurality of solar energy integrated device side encoders are compared with each other, and the corresponding control signals corresponding to the difference are measured in the north-south direction and east-west on each solar energy integrated device. It consists of a single control box that outputs to the directional drive motor.

On the other hand, the encoder is a member that generates a number of pulse signals corresponding to the rotation angle of the rotation center axis, and is widely used as a pulse signal generator in various control switch related fields.

According to the present invention, since a single, i.e., a single solar tracking sensor unit and a control box can be linked to control a plurality of solar energy integrated devices, the installation cost is remarkably high when installing a plurality of solar energy integrated devices. Savings can be achieved.

In addition to the installation cost reduction, the cost savings in maintaining a large number of solar energy integrated devices are also very large.

Hereinafter, a solar energy integrated device interlocking control system according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

1 is a view showing a solar tracking device and a solar energy integrated device installation state of the first embodiment of the present invention.

The solar tracking device interlocking control system of the present invention is equipped with a solar tracking sensor unit (11), and a single solar tracking device (10) having an encoder (E) coupled to a north-south rotation support shaft and an east-west rotation support shaft, respectively; ; A plurality of solar energy accumulators 20 each having an encoder E coupled to a north-south rotation support shaft and an east-west rotation support shaft; The pulse signal values from the encoder E on the solar tracking device 10 side are compared with the pulse signal values from the encoders E on the solar energy integration device 20 side, and a control signal corresponding to the difference is obtained. And a single control box 14 for outputting to the north-south direction drive motor and the east-west direction drive motor 23 on each solar energy integrated device 20.

Prior to a detailed description of the solar energy integrated device interlocking control system of the first embodiment of the present invention, a general structure of the solar tracking device will be described with reference to FIG. 2, which is a front sectional view of the solar tracking device 10.

As shown, the sun tracking device 10 supports the sun tracking sensor unit 11, the sensor fixing plate 12 on which the sun tracking sensor unit 11 is mounted, and both side ends of the sensor fixing plate 12. Fixing plate support 13, the main body 14 which supports these sensor fixing plate 12 and the fixing plate support 13 below the fixing plate support, and the sensor fixing plate 12 in the north-south direction, and the fixing plate support 13 in the east-west direction The rotation demands of the drive motors 15 and 16 are calculated and controlled on the basis of the detection signals from the north-south drive motor 15, the east-west drive motor 16, and the sun tracking sensor unit 11, respectively. It is comprised including the control box 17 which outputs a signal, ie, PLC.

On both sides of the sensor fixing plate 12, a north-south rotational support shaft S is formed, and these north-south rotational support shafts S are capable of relative movement with the fixing plate support 13 through a bearing (Br). To be supported.

The fixed plate support 13 includes two left and right vertical plates 13-1 directly coupled to the north-south rotation support shaft S, and a horizontal plate 13-3 coupled to the lower ends of the vertical plates 13-1. ) And a reinforcing plate 13-2 for firmly coupling the vertical plate 13-1 and the horizontal plate 13-3 with each other.

Moreover, the east-west direction rotation support shaft S 'is formed in the center part of the lower surface of the horizontal board 13-3.

Below the stationary plate support 13 is a main body 14 for supporting these sun tracking sensor units 11, the sensor stationary plate 12, and the stationary plate support 13, and the east-west direction rotational support shaft S '. The main body 14 is coupled in a state penetrating the upper surface.

On the other hand, the east-west direction drive motor 16 is mounted on the inner top surface of the main body 14 in an upside down state, and is coupled with the east-west direction rotation support shaft S '.

Thus, the sensor fixing plate 12 and the fixing plate support 13 on the sun tracking device 10 are based on the detection signal from the sun tracking sensor unit 11, the north-south driving motor 15 and the east-west driving motor 16. As it is rotated around the north-south rotation support shaft (S) and the east-west rotation support shaft (S ') as the center of rotation, respectively. (See arrows (a, b) on FIG. 1)

As mentioned above, the structure and operating principle of such a solar tracking sensor unit and a solar tracking device are conventional generalized matters.

1 and 2, and FIG. 3, which is a front sectional view of the solar energy integrated device 20 according to the embodiment of the present invention, with reference to the characteristic elements of the present invention with respect to the prior art. do.

The present invention uses a single solar tracking device according to the general structure as a model (model), a plurality of solar energy integrated devices, without the respective solar tracking sensor unit and the control box, rotates exactly along the sun It is characterized by the ability to integrate energy.

In the present invention, the solar tracking sensor unit 11 is equipped with a solar tracking sensor unit 11 so that the plurality of solar energy accumulators 20 can operate in the same form by modeling a single solar tracking device 10. On the north-south rotation support shaft S on the device 10 and the east-west rotation support shaft S ', and on the north-south rotation support on the plurality of solar energy accumulators 20 on which the solar panels 21 are mounted. The encoder E is coupled to the axis S and the east-west rotation support shaft S ', respectively, and then these solar tracking devices 10 and the solar energy accumulating device 20 are connected via a PLC in the control box 17. The encoder E on the drive and the drive motors 25, 26 are interconnected. (See wiring (w) on FIG. 1)

On the other hand, the sensor fixing plate 12 and the solar cell fixing plate 22 side encoder E are coupled to the respective rotary support shafts, while the fixing plate supporting members 13 and 23 side encoder E are east-west driving motors 16 and 26. It is shown to be mounted directly to the side, in the present invention, the encoder (E) indicates that a gear or belt connection with the drive motor rotation shaft is also possible.

Since the encoder coupling structure or method for a certain rotating body is well known in the art, it is not necessary to understand the encoder coupling structure according to the present invention.

The overall operation sequence and control mechanism in the system will be described with reference to FIG. 4, which shows a control process according to the solar energy integrated device interlocking control system according to an embodiment of the present invention.

First, when a control signal is sent from the PLC in the control box 17 based on the detection signal from the sun tracking sensor unit 11, the north-south driving motor 15 and the east-west driving motor 16 on the solar tracking device 10 are sent. ) Rotates, that is, the north-south rotation support shaft S on the sun tracking device 10 and the east-west rotation support shaft S 'are rotated at an angle.

At the same time, the encoder E as a pulse signal generator coupled to each of the rotation support shafts S and S 'generates a number of pulse signal values A and A' corresponding to the rotation angle, the control box Output to (17).

These pulse signal values (A, A ') are directly input and stored in the PLC in the control box 17, while the north-west rotational support shaft S and the east-west rotation on each solar energy accumulator 20 are rotated. The previous stage pulse signal values B and B 'of the support shaft S' are input and stored.

Here, the previous stage pulse signal values B and B 'are referred to as rotations on the solar energy accumulator 20 in the stage immediately before the new pulse signal values A and A' from the solar tracking device 10 are input. It means a pulse signal value generated as the support shafts S and S 'rotate by a certain angle, that is, a number of pulse signal values corresponding to the current rotation angles of these rotation support shafts S and S'.

If the solar energy accumulator 20 is not yet started to operate, for example, before sunrise, the previous stage pulse signal B becomes zero.

Looking at the specific control process in the order of occurrence, while the user enters the quantity (control range K) of the control target solar energy integrated device 20 and presses the start button button, the control box 17 The PLC checks the control range K, while the pulse signal value A from the north-south direction drive motor 15 side encoder E on the solar tracking device 10 and the east-west direction drive motor 16 side encoder. The pulse signal value A 'from (E), the previous stage pulse signal value B from the encoder E on the north-south drive motor 25 side on the solar energy accumulator 20, and the east-west drive motor ( 26) The pulse signal values B 'from the side encoder E are compared with each other.

As shown in the flowchart of FIG. 4, the pulse signal values A (n) and A ′ (n) and the sun of the solar tracking device 10 are targeted for a plurality of solar energy accumulators. The process of matching the pulse signal values B (n) and B '(n) on the light energy integrated device 20 side with each other is sequentially performed.

This means that the corresponding pulse signal values (A (n) and B (n), A '(n) and B' (n)) of the corresponding relationship are mutually matched. This is because the rotation angles of the axes coincide with each other, in other words, that the solar panel 21 on the solar energy integration device 20 faces the sun at the exact same inclination angle as the solar tracking sensor unit 11.

After the mutual matching process for all of the first to Kth solar energy accumulators 20 is completed, the same process is repeated again from the first solar integrated device 20.

By continuing the above process during the day and day, the plurality of solar energy accumulators 20 can accumulate solar energy while rotating exactly along the sun without each separate solar tracking sensor unit and control box.

5 is a view showing a solar tracking device and a photovoltaic energy integrated device installation state of the second embodiment of the present invention.

The solar tracking device interlocking control system of the second embodiment of the present invention mounts the solar tracking sensor unit 11, the solar panel 21, the solar cell fixing plate 22 and the control box 17 on one main body 14. One structure, that is to say, is characterized by implementing an integrated sun tracking device 10 '.

Other overall configuration and control processes except for the above-mentioned characteristic elements are the same as those of the first embodiment described above.

1 is a view showing a solar tracking device and a solar energy integrated device installation state of the first embodiment of the present invention,

2 is a front sectional view showing a sun tracking device of the first embodiment;

3 is a front sectional view showing a solar energy accumulating device of the first embodiment;

4 is a flowchart showing a control process according to the solar energy integrated device interlocking control system of the embodiment of the present invention;

5 is a view showing a solar tracking device and a photovoltaic energy integrated device installation state of the second embodiment of the present invention.

Claims (3)

A single sun tracking device (10, 10 ') equipped with a sun tracking sensor unit (11) and having an encoder (E) coupled to a north-south rotation support shaft and an east-west rotation support shaft, respectively; A plurality of solar energy accumulators 20 each having an encoder E coupled to a north-south rotation support shaft and an east-west rotation support shaft; The pulse signal values B and B 'from the encoder E of the solar tracking device 10 and 10' side are compared with each other, and a control signal corresponding to the difference is compared between the north and south on each solar energy accumulator 20. A solar energy integrated device interlocking control system comprising a single control box (17) for outputting to the directional and east-west drive motors (25, 26). The method of claim 1, The sun tracking device 10 includes a sun tracking sensor unit 11, a sensor fixing plate 12 on which the sun tracking sensor unit 11 is mounted, and a fixed plate support for supporting both side ends of the sensor fixing plate 12 ( 13), the main body 14 supporting the sensor fixing plate 12 and the fixing plate support 13 and the sensor fixing plate 12 in the north-south direction, and the fixing plate support 13 in the east-west direction, respectively, below the fixing plate support. Based on the detection signals from the north-south direction drive motor 15, the east-west direction drive motor 16, and the solar tracking sensor unit 11, the rotational demands of the drive motors 15 and 16 are calculated to output a control signal. Solar energy integrated device interlocking control system comprising a control box (17). The method of claim 1, The solar tracking device 10 'includes a solar cell fixing plate 22 on which the solar tracking sensor unit 11 and the solar panel 21 are mounted, and a fixed plate support for supporting both side ends of the solar cell fixing plate 22. (13), the main body 14 supporting these solar cell fixing plate 22 and the fixing plate support 13 below the fixing plate support, and the solar cell fixing plate 22 in the north-south direction, and the fixing plate support 13 in the east-west direction. The rotation demands of the drive motors 15 and 16 are calculated and controlled on the basis of the detection signals from the north-south drive motor 15, the east-west drive motor 16, and the sun tracking sensor unit 11, respectively. Solar energy integrated device interlocking control system comprising a control box (17) for signal output.

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