KR20120007249A - Solar power generation system for high efficient - Google Patents

Abstract

PURPOSE: A high efficiency solar cell generating system is provided to produce balanced power generation efficiency for each generator by controlling power generation amount for each generator through a feed-back control with real time monitoring. CONSTITUTION: A solar position tracking sensor(110) includes a first sensor(111) and a secondary sensor(112). A tracker(120) includes a driving part(121) for location-controlling a solar battery panel(122). The solar battery panel is composed of a holder(31) and a solar cell module(32) which are combined with an actuator drive rod(25). A communications interface unit(130) transmits and receives data with an power generation system in real time. The communications interface unit monitors a location and state of the solar battery panel.

Description

High Efficiency Solar Power System {SOLAR POWER GENERATION SYSTEM FOR HIGH EFFICIENT}

The present invention relates to a photovoltaic power generation system, and more particularly, to a high efficiency photovoltaic power generation system capable of increasing photovoltaic power generation efficiency by producing more energy at a lower cost with less land area.

In general, photovoltaic power generation system is a power generation system that produces electricity by directly converting sunlight into electric power by using solar cells. At present, photovoltaic power generation (PV) and compound semiconductors are used by general silicon type solar cell modules. The solar cell module can be classified into concentrating photovoltaic power generation (CPV).

However, the present PV (silicon module) system and CPV (condensing module) system, as shown in Figures 1 and 2, the installation area of the structure consisting of the solar panel is a problem that is affected by the wind a lot because of this Due to the problem of lowering the amount of power generation, the need for a system that is light in weight and less affected by wind is emerging.

On the other hand, until now, most studies have been conducted on whether the strength of the structure is sufficient by the influence of the wind. However, when considering only the design according to the strength of the structure, the deformation of the tracker that controls the position of the solar panel is the Since it is possible to exceed the allowable range of tracking accuracy according to the angle of incidence of sunlight, it is necessary to consider the design of the tracker so that not only the strength design but also the track accuracy can be maintained. Static deformations should also be considered.

Most of the trackers for position control of solar panels according to the position change of solar light are mostly composed of pedestal pylon type, and each solar drive (structure) is connected to one post and corresponding drive drive It is a method of individually controlling each group through, and having a certain weight, thereby causing a problem of lowering the overall durability, such as bending the post supporting the solar panel, as well as a lot of materials, causing a price increase.

On the other hand, in the conventional photovoltaic power generation system, monitoring of photovoltaic power generation through construction of PV (silicon module) or CPV (condensing type module) is carried out. The level of electricity generation is only checked.

The present invention has been made to solve and solve the above-described conventional problems, and provides a high-efficiency photovoltaic power generation system to produce more energy at a lower cost and less land area to increase the photovoltaic power generation efficiency Its purpose is to.

The present invention can convert the position with a lower force than the existing photovoltaic power generation system, and can stably drive the natural disaster (especially typhoon) by reducing the influence of wind on the structure (solar panel), and improve the structure of the power generation system. High-efficiency photovoltaic power generation system that can realize the weight reduction according to the present invention, can reduce the use area of the structure, lead to enhanced durability and cost reduction, and improve the power generation efficiency of the system as well as the position control of the structure. To provide.

The present invention provides a communication interface such as RS485 / 422/232 and TCP / IP to the power generation system to build a system that can send and receive locally or on the web, and the web or local control of the power generation system In addition to providing a high efficiency solar power generation system that can control the amount of power generation through feedback control through monitoring.

The present invention provides a solar position tracking sensor having a primary sensor and a secondary sensor;

Includes; Tracker having a drive unit for controlling the position of the solar panel mounted solar cell module,

The drive unit has at least three posts spaced apart, a worm drive rod horizontally disposed over the top of the post, the worm drive rod is supported to be rotatable, the altitude angle of the solar panel by rotating the worm drive rod located on the post Worm gear mounted to control the worm, coupled to the horizontal position on one side on the worm drive rod and the end of the linear drive screw is coupled to the actuator drive rod arranged horizontally parallel to the worm drive rod and for controlling the azimuth angle of the solar panel Both the upper and lower ends are hingedly coupled to the actuator, the worm drive rod and the actuator drive rod, and a hinge assembly supporting the actuator drive rod is provided;

The solar panel is disposed on the post and spaced apart and disposed to cross the actuator drive rod and coupled to the actuator drive rod, the cradle is interconnected, the solar cell module is mounted in a number of front and rear and left and right directions of the cradle Characterized in that it is provided.

At this time, the data communication is performed in real time based on serial communication and TCP / IP network, and further comprising a communication interface device for supporting the control and monitoring of the position and state of the solar panel on the local or web. It features.

The present invention can convert the position with a lower force than the existing photovoltaic power generation system, and can stably drive even natural disasters (especially typhoons) by reducing the influence of wind on the structure (solar panel), and the horizontal axis of the tracker drive unit As the type improves the structure, the overall weight of the power generation system can be reduced, and the use area of the structure can be reduced, thereby enhancing the durability of the power generation system and pursuing economics by reducing costs, and precisely positioning the solar position. Not only can it be traced, it can promote the position control of the structure more efficiently, and above all, it can increase the photovoltaic power generation efficiency.

The present invention can collect data from the various power devices in the power plant, including the power generation system through the communication interface device, and can easily monitor and control the power generation system in the web or local state, in particular real-time monitoring Through feedback control, it is possible to adjust the generation amount of each unit that is poor in power generation, which can lead to balanced generation efficiency of each unit.

The present invention is to provide a high efficiency photovoltaic power generation system with economical while being able to produce more energy at a lower land area and at a lower cost to increase photovoltaic power generation efficiency.

1 is an exemplary view showing a PV (silicon module) system of a conventional photovoltaic power generation system.
Figure 2 is an exemplary view showing a CPV (condensing module) system of the conventional photovoltaic power generation system.
Figure 3 is a block diagram showing the overall configuration of a high efficiency photovoltaic power generation system according to the present invention.
Figure 4 is a view showing for explaining the position tracking method of the secondary sensor in the present invention.
5 to 7 are exemplary views shown to explain the tracker in the present invention.
8 is a diagram illustrating a connection configuration of a communication interface device in the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings. The present invention will become more apparent from the following detailed description when taken in conjunction with the accompanying drawings.

High-efficiency photovoltaic power generation system according to an embodiment of the present invention, as shown in Figure 3, the solar position tracking sensor 110 and the solar position tracking sensor 110 for initially recognizing the sun position and tracking the sun position. According to the solar position tracking by the structure consists of a tracker 120 having a drive unit 121 for controlling the position so that the solar panel 122 is a structure to receive the maximum solar energy.

In addition, based on serial communication (RS485 / 422/232) and TCP / IP network can perform data transmission and reception with the power generation system in real time, and control the location and state of the solar panel 122 on the local or web and It further includes a communication interface device 130 to support the monitoring.

The solar position tracking sensor 110 is mainly fixed to the solar panel 122 consists of a configuration of the primary sensor 111 and the secondary sensor 112, the primary sensor 111 is ± 1 As a sensor for tracking the solar position of the island, an optical sensor for detecting the solar position by comparing the photocurrent output value using the photodiode may be used, and sometimes an angle sensor may be used.

The secondary sensor 112 is a sensor for tracking the sun position more precisely by tracking the sun position of ± 0.1 degrees has a configuration in which the focusing lens 112a and the position resistance sensor 112b are spaced apart from each other.

At this time, the focusing lens (112a) and the position resistance sensor (112b) is preferably configured to achieve the optimal focusing by setting the mutual separation distance of 35 ~ 45mm, through which the sun position can be more precisely tracked.

Here, the secondary sensor 112 measures the resistance value of the point reached by the position resistance sensor 112b after focusing through the focusing lens 112a, and outputs the coordinate values of x, y for the north, south, east and west. It is configured to track the position, as shown in the example of Figure 4 so that the output coordinate value through the secondary sensor 112 is finally directed to the position of (x, y = 0,0) of the tracker 120 The solar cell panel 122 is moved through the driver 121 to be controlled in position.

The secondary sensor 112 has a communication unit configured to enable serial communication to be configured to transmit data in real time.

The tracker 120 is configured as a linear type of a horizontal axis (horizontal axis), the drive unit 121 is a system having a horizontal drive rod is configured to enable the group control of the position of a plurality of groups of solar panels rather than individual control group At least three solar panels on at least three posts can be installed in a group to control the weight and durability.

5 to 7 are diagrams for explaining the tracker in the present invention, the drive unit 121 of the tracker 120 according to the present invention is a post 21 and at least three intervals are arranged, the post ( A linear worm drive rod 22 disposed horizontally across the top of the support 21 and rotatably supported and rotatably positioned on the post 21 to rotate the worm drive rod 22 to allow the solar cell panel 122 to be rotated. Worm gear 23 mounted to control an elevation angle (north-south direction), and an actuator drive rod 25 coupled horizontally to one side on the worm drive rod 22 and arranged horizontally in parallel to the worm drive rod 22. ) Is coupled to the end of the linear drive screw, the actuator 24 for controlling the azimuth angle (east-west direction) of the solar panel 122, and the upper and lower both ends to the worm drive rod 22 and the actuator drive rod 24 This hin It combined in the form and consists of a hinge coupler (26) for supporting the actuator drive rod 25.

At this time, the worm gear 23 is provided so that it can be rotated by connecting to the worm drive rod 22 by attaching to the first post when assuming three or more posts, and through support structure for the remaining posts The worm drive rod 22 is supported by mounting the ring-shaped connecting post bearing unit 101 having a shape.

Although not shown, each drive motor is connected to the worm gear 23 and the actuator 24, and the worm gear 23 is installed to rotate the linear worm drive rod 22 connected in the north-south direction.

In addition, the solar panel 122 of the tracker 120 according to the present invention is positioned on the post 21 and spaced apart and disposed to cross the actuator drive rod 25 and are coupled to the actuator drive rod 25 and interconnected. It is composed of a linear cradle 31 and the solar cell module 32 is mounted in a plurality of front and rear and left and right directions of the cradle 28.

On the other hand, the communication interface device 130 is to support the control and monitoring of the photovoltaic power generation system of the present invention in a local or web state, mainly installed in an electric room or control room, etc., as in the example of FIG. It is configured to control data by transmitting / receiving data through communication with various power devices, and communication interface unit having a serial communication port such as RS485 / 422/232 and a TCP / IP communication port to enable all types of equipment communication. 131) and collects / calculates data from components of the power generation system (e.g. tracking sensors, solar modules) and various power devices (e.g. inverters, access panels) in the power plant and sends the data to the user's computer. A central processing unit 132 for executing commands and a database for databaseing data collected through the central processing unit It is comprised including the stud 133.

In addition, the wind speed sensor is installed in a power generation system or a power plant, but the data value sent from the wind speed sensor is configured to include an automatic control unit 134 to automatically control the tracker 120 to stabilize the power generation system. In this case, the solar panel 122 is automatically controlled in a horizontal state through the automatic control unit 134.

Further, the solar cell panel 122 may be horizontally controlled by controlling the driving unit 121 of the tracker 120 to stabilize the power generation system through the data value sent from the wind speed sensor.

Furthermore, the communication interface device 130 further includes a GUI (graphical user interface) -based touch screen unit 135 to configure the user at a place (mainly installed in an electrical room) such as a tracker 120 without a separate PC. Ensure that the power generation system is configured for local monitoring and control.

Referring to the operation of the high-efficiency photovoltaic power generation system according to the present invention having the above-described configuration is as follows.

First, the position control is performed through the tracker 120 while recognizing and roughly tracking the position of the sun through the primary sensor 111 by an optical sensor or an angle sensor, and the secondary sensor 112 for more precise tracking of the position of the sun. The position is controlled by moving the tracker 120 with the data transmitted in real time.

In other words, the secondary sensor 112 measures the resistance value of the point reached by the position resistance sensor 112b after focusing through the focusing lens 112a and outputs the coordinate values of x and y in the north, south, east, and west directions. The position of the sun is tracked through this coordinate value. The output of this coordinate value is the position of (x, y = 0,0) no matter where the output coordinate value through the secondary sensor 112 is located in the north, south, east, and west directions. The altitude angle (North-North direction) and azimuth (EW-West) of the solar panel 122 in which the solar cell module is mounted are controlled in real time through the driving unit 121 of the tracker 120 to face.

In the present invention, when the tracker 120 intends to control the altitude angle (south-north direction) of the solar panel 122 through the driving unit 121, the tracker 120 is driven by driving the worm gear 23 that rotates in the north-south direction. As the worm drive rod 22 rotates in the north-south direction, the solar panel 122 is controlled in the north-south direction to track the altitude angle. In this case, the actuator 24 is also coupled to the worm drive rod 22. The position of the worm drive rod 22 is simultaneously moved in accordance with the rotation angle.

When the azimuth (east-west direction) of the solar panel 122 is to be controlled by the driving unit 121, the actuator 24 may be driven. The actuator 24 may be horizontal to the worm drive rod 22 according to the operation of the linear driving screw. The actuator drive rod 25, which is positioned so as to be hinged and supported by the hinge assembly 26, linearly moves in the east-west direction while controlling the azimuth angle by controlling the solar panel 122 in the east-west direction.

Here, the present invention can reduce the use area while reducing the structural weight of the power generation system itself by improving the structure of the drive unit 121 of the tracker 120 in a linear type of horizontal axis (horizontal axis) than the conventional solar power generation system It can have the advantage of greatly strengthening durability, such as preventing warpage.

Through this, the present invention has a power generation system capable of converting the position with a lower force than the existing photovoltaic power generation system and stably driving natural disasters (especially typhoons) by reducing the influence of wind on the structure, and controlling the group. It is possible to pursue economic feasibility by saving materials such as structural design for the purpose of improving solar power generation efficiency.

For example, in the existing photovoltaic power generation system, when installed as a pylon type, it is possible to build a 3 to 5 KW capacity facility per unit. Through the horizontal axis type of the present invention, a 10 to 16 KW capacity facility can be constructed. It can produce more energy for less land area and at a lower cost, thereby increasing the efficiency of solar power generation.

Meanwhile, according to the present invention, the communication interface device 130 is provided so that data can be transmitted and received in real time with devices connected through various power devices and communication interface 131 in a power plant including a solar power generation system and located remotely. Since the data can be sent to the user's PC, the user can monitor the overall operating status and power generation status on the web, while controlling the various power devices in the power plant including the solar power system.

In addition, through the communication interface device 130, the GUI-based touch screen unit 135 may provide a user convenience for the user to perform monitoring and control in a local state without a separate PC.

In particular, in the present invention can monitor the power generation system on the web with the data transmitted to the user PC through the communication interface unit 131, after the generation amount of each power generation system is checked, the power generation is poor The system provides the user with the ability to control the amount of power generation by remotely controlling feedback.

In other words, the user can selectively adjust the amount of power generated by each unit by remotely controlling the position of the horizontal axis type tracker 120 of the corresponding power generation system that is poorly developed while performing web monitoring on the web.

Local and web control described in the present invention includes controlling various power devices in a power plant, but focuses on controlling the drive unit 121 of the tracker 120 in the power generation system to track and position the sun more precisely. By doing so, the solar power generation efficiency will be improved.

110: solar position tracking sensor 111: primary sensor
112: secondary sensor 120: tracker
121: drive unit 21: post
22: Worm Drive Rod 23: Worm Gear
24: Actuator 25: Actuator Drive Rod
26: hinge assembly 122: solar panel
31: cradle 32: solar cell module
130: communication interface device 131: communication interface unit
132: central processing unit 133: database unit
134: automatic control unit 135: touch screen unit

Claims (7)

A solar position tracking sensor having a primary sensor and a secondary sensor;
Includes; Tracker having a drive unit for controlling the position of the solar panel mounted solar cell module,
The drive unit has at least three posts spaced apart, a worm drive rod horizontally disposed over the top of the post, the worm drive rod is supported to be rotatable, the altitude angle of the solar panel by rotating the worm drive rod located on the post Worm gear mounted to control the worm, coupled to the horizontal position on one side on the worm drive rod and the end of the linear drive screw is coupled to the actuator drive rod arranged horizontally parallel to the worm drive rod and for controlling the azimuth angle of the solar panel Both the upper and lower ends are hingedly coupled to the actuator, the worm drive rod and the actuator drive rod, and a hinge assembly supporting the actuator drive rod is provided;
The solar panel is disposed on the post and spaced apart and disposed to cross the actuator drive rod and coupled to the actuator drive rod, the cradle is interconnected, the solar cell module is mounted in a number of front and rear and left and right directions of the cradle High efficiency solar power system characterized in that it is provided. The method of claim 1,
Data transmission and reception in real time based on serial communication and TCP / IP network, and further comprises a communication interface device for supporting the control and monitoring of the position and status of the solar panel on the local or web. High efficiency solar power system. The method of claim 1,
The primary sensor is a high efficiency photovoltaic power generation system, characterized in that the optical sensor or the angle sensor. The method of claim 1,
The secondary sensor is a combination of the focusing lens and the position resistance sensor spaced apart vertically and focusing the sunlight through the focusing lens and then measure the resistance value of the point reached to the position resistance sensor x and y for the north, south, east and west High-efficiency photovoltaic power generation system, characterized in that configured to track the position of the sun by outputting the coordinate value. The method of claim 2,
The communication interface device includes a communication interface unit having a serial communication port of the RS485 / 422/232 and a TCP / IP communication port;
A central processing unit for collecting / operating data from various power devices in the photovoltaic power generation system and a power plant, sending data to a user computer, and executing user commands;
High-efficiency photovoltaic power generation system comprising a database unit for database the data collected through the various power devices in the photovoltaic system and the power plant. 6. The method of claim 5,
The communication interface device includes a GUI (Graphic User Interface) based touch screen unit, the high efficiency photovoltaic power generation system, characterized in that configured to enable the user to locally monitor and control the power generation system without a separate PC in the installed place. 6. The method of claim 5,
The communication interface device includes an automatic control unit for automatically controlling the tracker for stabilization of the power generation system when the wind speed sensor is installed in the power generation system or the power plant and the data value sent from the wind speed sensor is greater than or equal to a set value. High efficiency solar power system.

Images