Views: 0 Author: Site Editor Publish Time: 2021-07-07 Origin: Site
The role of solar photovoltaic modules is to convert solar energy into electrical energy, or send it to storage batteries, or drive the load to work. We know that there are theories and constructions of solar photovoltaic modules, so what is the theory and construction of solar photovoltaic modules? Let's take a look together next.
Here is the content list:
Theory of solar photovoltaic modules
Solar photovoltaic module connection sequence construction
Solar photovoltaic modules use light energy (photons) from the sun to generate electricity through the photovoltaic effect of solar photovoltaic modules. Most solar photovoltaic modules use wafer-based crystalline silicon cells or thin-film cells. Structure (bearing) The members of the solar photovoltaic module can be the top layer or the bottom layer. The cells must be protected from mechanical damage and moisture. Most solar photovoltaic modules are rigid, but semi-flexible solar photovoltaic modules based on thin-film cells can also be used. Batteries are usually connected electrically in series, one to the other to the required voltage, and then connected in parallel to increase the current. The power (watts) of a solar photovoltaic module is the mathematical product of the voltage (volt) and current (ampere) of the solar photovoltaic module. The manufacturing specifications of solar photovoltaic modules are obtained under standard conditions, which are not the actual operating conditions that solar photovoltaic modules are exposed to at the installation site.
The photovoltaic junction box is installed on the back of the solar photovoltaic module and used as its output interface. The external connection of most solar photovoltaic modules uses MC4 connectors to facilitate the weatherproof connection with the rest of the system. You can also use the USB power interface.
Solar photovoltaic modules are electrically connected in series to achieve the required output voltage or in parallel to provide the required current capacity (amperes) of the solar photovoltaic module panel or solar photovoltaic module system. The wire that draws current from the solar photovoltaic module is sized according to the rated current and may contain silver, copper, or other non-magnetic conductive transition metals. In the case where part of the solar photovoltaic module is shaded, bypass diodes can be combined or used externally to maximize the output of the solar photovoltaic module that is still illuminated.
Some special solar photovoltaic modules include concentrators, in which light is focused on smaller solar photovoltaic modules through lenses or mirrors. This makes it possible to use batteries with a high cost per unit area (such as gallium arsenide) in a cost-effective manner.
Solar photovoltaic modules also use a metal frame composed of rack solar photovoltaic modules, brackets, reflector shapes, and grooves to better support the solar photovoltaic module structure.
The manufacturer of Anhui JF Solar Technology Co., Ltd. (JF Solar) produces better solar photovoltaic modules based on the theory and construction of solar photovoltaic modules. The JF solar team focuses on the production and development of solar photovoltaic modules with more than 12 years of rich experience. If you are interested in solar photovoltaic modules, please contact us, our website is https://www.jf-solartech.com/. We very much welcome your arrival and look forward to cooperating with you.
Currently, most solar photovoltaic modules are made of crystalline silicon (c-Si) solar photovoltaic modules made of polycrystalline silicon and monocrystalline silicon. In 2013, crystalline silicon accounted for more than 90% of global photovoltaic production, while the rest of the entire market wa