Testing system used for photovoltaic component temperature coefficient measurement
A technology of photovoltaic modules and test systems, applied in the monitoring of photovoltaic systems, photovoltaic power generation, photovoltaic modules, etc., can solve the problems of difficult temperature adjustment, reduce test efficiency, etc., to achieve low cost, shorten test time, and increase efficiency. Effect
Pending Publication Date: 2017-09-22
TUV RHEINLAND SHANGHAI
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Problems solved by technology
During the whole process, less time is required for lighting, and the data can be measured quickly. Most of the time is spent on temperature adjustment. Because there is a certain distance between the light source and the photovoltaic module, the entire room is larger. Through It is difficult for the air conditioner to achieve rapid temperature adjustment, which greatly reduces the test efficiency
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Embodiment 1
[0022] A test system for measuring the temperature coefficient of a photovoltaic module. The test system is placed in a closed and dark room. The test system is equipped with a bracket 1 for placing a photovoltaic module 2, an air conditioner 3 for adjusting the temperature in the room, and a facing The light source of the photovoltaic module 2, the air conditioner 3 is set directly above the photovoltaic module 2, a guide rail 5 is provided on the side wall of the room, and a liftable rolling shutter 4 is installed on the guide rail 5, the bracket 1, the photovoltaic module 2 and the air conditioner 3 are located In the airtight space formed by the rolling gate 4 and the side wall of the room, the structure of the airtight space is as follows: figure 1 shown.
[0023] The test system divides the room into two parts through the rolling gate 4, and places the support 1, the photovoltaic module 2 and the air conditioner 3 in a confined space with a small footprint. It can be do...
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The invention relates to a testing system used for photovoltaic component temperature coefficient measurement. The testing system is placed in a enclosed and dark room. The testing system is provided with a support used for placing a photovoltaic component, an air conditioner used for adjusting a temperature in a room and a light source directly facing the photovoltaic component. The air conditioner is arranged right above the photovoltaic component. A side wall of the room is provided with a guide rail, and the guide rail is installed with a liftable roller shutter. The support, the photovoltaic component and the air conditioner are located in the enclosed space formed by the roller shutter and the side wall of the room. Compared to the prior art, by using the system of the invention, through setting the roller shutter, the room is divided into two portions so that a purpose that surrounding air of the photovoltaic component is rapidly changed is realized; whole testing time is shortened and an effect of rapidly and uniformly changing a photovoltaic component temperature is reached; efficiency is increased and cost is low; and through setting a PLC controller, automation of a whole testing process is realized and an automation degree is high.
Description
technical field [0001] The invention relates to the field of photovoltaic component testing, in particular to a testing system for measuring the temperature coefficient of a photovoltaic component. Background technique [0002] The inexhaustible solar energy is more and more favored by people because of its safety, cleanness and environmental protection performance, so the solar photovoltaic industry has become a new industry. When the temperature of photovoltaic modules is high, the working efficiency decreases. As the temperature of the photovoltaic cell increases, the open-circuit voltage decreases. In the range of 20-100°C, the voltage of the photovoltaic module decreases by 150mV for every 1°C increase; while the photocurrent increases slightly with the increase of temperature, about The photocurrent of the module increases by six thousandths for every 1°C rise. In general, every time the temperature rises by 1°C, the power will decrease by 0.4%. This is the temperatu...
Claims
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Login to View More IPC IPC(8): H02S50/15
CPCH02S50/15Y02E10/50
Inventor 冯轶洲
Owner TUV RHEINLAND SHANGHAI