An outdoor high-power concentrating photovoltaic test system

Abstract

The invention belongs to the technical field of solar energy products, and specifically discloses an outdoor high-power concentrating photovoltaic test system, which includes a base and a support rod. A transmission device is installed on the support rod, and a turret is movably connected to both ends of the transmission device. A movable photovoltaic cell support frame and a lens support frame are sequentially arranged on the turret from above, and a sunlight sensor for sensing and tracking the position of the sun is installed on the turret, and the sunlight sensor tracks the position of sunlight and converts it into an electrical signal After driving the transmission device, a mobile platform capable of moving in three directions is installed on the photovoltaic cell supporting frame, and a photovoltaic cell to be tested is installed on the mobile platform, and a Fresnel lens is installed on the lens supporting frame. The test system can test single or several batteries, and at the same time, it can better study the positional relationship between the Fresnel lens and the battery, and has strong practicability.

Description

technical field [0001] The invention belongs to the technical field of solar energy products, and in particular relates to an outdoor high-power concentrating photovoltaic test system. Background technique [0002] Photovoltaic is a technology that uses semiconductor materials to convert solar radiation energy into electrical energy, and its core is solar cells. At present, crystalline silicon cells are the earliest and most commonly used in photovoltaic technology, and concentrating photovoltaic technology based on triple-junction cells has also attracted more and more attention because of its high conversion efficiency. [0003] The principle of concentrating photovoltaics is to use concentrators to concentrate solar energy on small-area cells, and more light energy per unit area, so as to improve efficiency and replace expensive cells with cheaper concentrator materials Material saves costs. [0004] There are two types of concentrated photovoltaic systems: indoor and o...

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Problems solved by technology

[0005] At present, at home and abroad, for indoor light sources, because the light source has very high requirements on collimation and uniformity, the price of large indoor light sources is very expensive. Generally, indoors are small test systems for batteries; and for outdoor systems, generally They are all tested for the entire module, to test the power generation performance of the module and the performance changes under various weather conditions. Since the modules are fixed and sealed, this kind of outdoor system has no way to test the internal battery of the module, the battery and the lens. research on the relationship between

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