Solar location tracking system

 

Solar location tracking system

Abstract

                A fan / tilting drive unit for tilting driving and panning driving a solar panel, a GPS receiver for acquiring installation location information of the solar panel, and installed on the solar panel to measure the orientation and elevation angle of the solar panel Calculate and calculate the solar position azimuth and altitude value based on the location information of the solar panel obtained from the GPS receiver using the electronic compass, the solar position measuring unit to measure the actual azimuth and altitude angle of the sun, and the astronomical force Controls the pan / tilting drive unit by applying the sun position azimuth and altitude values, and corrects the azimuth and altitude values ​​of the pan / tilt drive unit by comparing the measured values ​​from the sun position measurement unit with the data calculated using the astronomical force. Disclosed is a solar location tracking system comprising a control unit for driving control. According to the disclosed sun position tracking system, it is possible to precisely and precisely track the sun position, and further improve the reliability by correcting the tracking value based on the measured data.

Description

    The present invention relates to a solar location tracking system, and more particularly, to a solar location tracking system to accurately increase the solar power generation efficiency by accurately tracking the solar location.As the society develops and modernizes, the development of alternative energy is being actively activated due to the depletion of fossil energy and high oil prices due to the increased use of fossil energy, which was an existing energy source.

     Among alternative energy, great attention is paid to the field of solar energy that can be used infinitely and without pollution. Particularly, in the photovoltaic power generation, since the power generation part is a semiconductor device and the control part is an electronic component, there is no mechanical vibration or noise, the life span of the solar cell is longer than several decades, semi-automation or automation of the power generation system is possible, and operation and maintenance. 

    In addition, photovoltaic power generation has the advantage that it can be installed and used for home use as it can be used for small-scale power generation without requiring large-scale power generation equipment.On the other hand, the sun moves along the orbit for a period of time from sunrise to sunset, so if the photovoltaic mining unit is fixed for a long time at a certain position, it cannot accept sunlight under optimal conditions. It will lower the efficiency.

     Therefore, it is known from the known fact that when the solar cell panel that receives sunlight is tracked along the moving trajectory of the sun, the efficiency of the system can be increased by accepting sunlight for a long time under optimal conditions. For this reason, a sun position tracking device has been developed and proposed.However, since the solar position tracking value is different depending on the location, place, time, etc. where the solar panel is installed, it is difficult to track the solar position in consideration of these variables.

     In fact, the solar position value is obtained to use the fan / tilting drive device. Therefore, even if the posture and position of the solar panel are adjusted, there is a problem that it is difficult to precisely track due to mechanical errors or failures.However, regardless of the time when the sun is floating, the solar power generation system (system) must be continuously operated to check and track the position of the sun, thereby increasing maintenance costs.

    The present invention was devised in view of the above points, and it is determined whether or not the solar power generation facility is driven by separately checking whether the sun is floating even if the sun is invisible, and whether the normal tracking of the solar position is achieved. The purpose of the present invention is to provide an improved solar location tracking system that can accurately track the location of the sun while reducing maintenance costs.

    The solar position tracking system of the present invention for achieving the above object includes a fan / tilting drive unit for tilting and panning driving the solar panel; A GPS receiver for acquiring installation location information of the solar panel; An electronic compass installed on the solar panel to measure azimuth and elevation angles of the solar panel; A solar position measuring unit for measuring the actual azimuth and elevation of the sun; Calculate the solar position azimuth and altitude values ​​based on the position information of the solar panel obtained from the GPS receiver using astronomical force, apply and calculated solar position azimuth and altitude values ​​to control the fan / tilting drive unit and  a control unit for controlling and controlling the azimuth and altitude values ​​of the pan / tilting driving unit by comparing the measured value measured by the solar position measuring unit with data calculated using the astronomical force.

    Here, it is preferable that the sun position measuring unit includes a CCD sensor that captures the sun and obtains the sun position azimuth and altitude values.In addition, the solar cell panel is installed in the place to determine whether the sun is floating, and further includes a determination unit whether the sun is floating to check the position of the sun, and the control unit determines whether the sun is floating. It is preferable to drive control the fan / tilting drive unit based on the determination information as to whether the sun is floating or not, so that the solar panel follows the position of the sun.

    In addition, the determining whether the sun is floating, the rotating member having a shape whose outer diameter is gradually expanded from the top to the bottom; An illuminance sensor installed on an outer inclined portion of the rotating member; A rotation driving unit for precisely rotating the rotation member; And a drive control unit for controlling the rotation drive unit to rotate the rotating member by driving control at a set time interval, wherein the drive control unit includes rotation angle position information that detects an illuminance higher than a reference value from the illuminance sensor when the rotating member rotates. , It is preferable to transmit information detecting the illuminance of a reference value or higher from the illuminance sensor to the control unit.

     As a result, it is possible to precisely control the driving control unit to precisely drive the rotating member at a slow speed, thereby confirming the correct azimuth angle with respect to the sun position.In addition, it is possible to reduce maintenance costs due to unnecessary driving by judging whether or not the fan / tilting drive and the calibration drive for the solar panel are selectively driven based on the state of the sun floating at regular time intervals. There are advantages.

    In addition, it is possible to more accurately correct and control the fan / tilting drive of the solar panel through the actual location information of the sun obtained from the solar position measuring unit and the sun floating state determining unit, thereby maximizing the photovoltaic power generation efficiency. Can be improved.a solar location tracking system according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.