A tracking accuracy testing instrument and method
A technology for tracking accuracy and testing instruments, which is applied in electrical testing/monitoring, photometry using electrical radiation detectors, measurement of sunlight, etc. Sunlight dispersion and direction instability, etc., to achieve the effects of intuitive observation, convenient installation and high reliability
Active Publication Date: 2020-12-15
ARCTECH SOLAR HLDG CO LTD
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Problems solved by technology
However, due to the dispersion of sunlight and the instability of the direction, the tracking accuracy of the single-axis photovoltaic tracker for sunlight greatly affects the subsequent adjustment of the inclination angle of the photovoltaic panel. Solutions for Tracking Accuracy
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[0048] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the specific implementation manners of the present invention will be described below with reference to the accompanying drawings. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention, and those skilled in the art can obtain other accompanying drawings based on these drawings and obtain other implementations.
[0049] The terms "system" and "network" are often used interchangeably herein. The term "and / or" in this article is just an association relationship describing associated objects, which means that there can be three relationships, for example, A and / or B can mean: A exists alone, A and B exist simultaneously, and there exists alone B these three situations. In addition, the character " / " in this article generally indicates that the contextual objects are an "or" relationship.
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The invention provides a tracking precision testing instrument and a method. The tracking precision testing instrument comprises a light barrier which is installed on a vertical central line of a rotating shaft and located above the rotating shaft, wherein the extension direction of the light barrier is parallel to the vertical central line, and the space of the light barrier is perpendicular to the extension direction of a photovoltaic panel, the vertical center line is a line which passes through the center point of the rotating shaft and is perpendicular to the axial direction of the rotating shaft; two photosensitive elements which are arranged on the rotating shaft, are symmetrically arranged on the two sides of the light barrier respectively and are used for acquiring light receivingquantity and outputting photosensitive current; and a detection processing module which is respectively connected with the two photosensitive elements and is used for respectively obtaining comparison results according to the photosensitive currents output by the two photosensitive elements. The method assists in realizing automatic measurement of sun tracking precision, and is high in reliability, convenient to install and visual in observation.
Description
technical field [0001] The invention relates to the field of photovoltaic technology, in particular to a tracking precision testing instrument and method. Background technique [0002] Solar photovoltaic power generation system is a new type of power generation system that uses the photovoltaic effect of solar cell semiconductor materials to directly convert solar radiation energy into electrical energy. It is mainly composed of three parts: photovoltaic panels, controllers and inverters. Solar trackers are components that assist photovoltaic panels to capture the maximum amount of incoming solar energy, thereby increasing the amount of solar radiation received by photovoltaic panels and improving overall power generation. [0003] At present, the photovoltaic market mostly uses single-axis photovoltaic trackers to track the sun, that is, photovoltaic panels change with the movement of the sun's position. However, due to the dispersion of sunlight and the instability of th...
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IPC IPC(8): G05B23/02G01J1/42
CPCG01J1/42G01J2001/4266G05B23/02
Inventor 王士涛王士莹
Owner ARCTECH SOLAR HLDG CO LTD