Solar simulator

Abstract

The invention discloses a solar simulator. The solar simulator at least comprises a modularization light emitting diode (LED) light source system which is used for emitting compound color light with a simulated solar spectrum, a controller, a movable spectrum detection system and a sample platform, wherein the compound color light emitted by the modularization LED light source system is projectedonto the sample platform to form a detection area. By a modularization design thought, the area or the power of a light source can be changed by simply increasing and reducing LED modules, so that a simple and effective method is provided for the realization of a large-area solar simulator, and the control capacity on the light emitting property of the solar simulator is improved.

Description

technical field [0001] The invention relates to the field of detection equipment for solar photovoltaic devices, in particular to a solar simulator that uses a light emitting diode (LED) light source to simulate a specific solar spectrum. Background technique [0002] With the development of the world economy and the increasing demand for energy, the fossil energy represented by traditional oil and coal is facing a crisis of depletion. Solar energy technology, especially solar photovoltaic technology, has become an important means to solve the world's energy crisis and has been widely valued by the world. In solar photovoltaic technology, solar cells and solar photovoltaic modules have been widely studied and widely used, and have been closely related to people's daily life and work. An important indicator for testing solar cells and photovoltaic modules is their power generation efficiency. Since the lighting conditions are widely affected and restricted by geographical l...

AI Technical Summary

Problems solved by technology

Therefore, when using traditional light sources, it is necessary to use filters for correction, which will lead to a reduction in light energy utilization. Moreover, traditional light sources are large in size, and to achieve uniform illuminance distribution, a large optical system is required for light integration. Therefore, it is difficult to achieve Larger test area

[0012] The Chinese patent application with the application number 200810025522.1 discloses an LED solar simulator, including an LED light source system, an optical mixing system, a spectrum correction system, a controller, a detection platform and a concentrator, which improves the traditional solar simulator , mainly using LED light sources to replace the traditional light sources such as gas light sources such as xenon lamps and iodine tungsten light sources involved in traditional solar simulators. The optical mixing system, spectrum correction system, spectrum correction system and concentrators involved all use traditional Optical devices. Traditional optical devices are relatively large in size. When simulating sunlight, it is difficult to achieve large-area testing. The utilization rate of light energy needs to be further improved, and there are technical defects.

Images