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The role of photovoltaic inverters in solar power generation?
Oct 30, 2018

Solar power generation is a new field of energy conservation and environmental protection. It is a hot project in the world and has evolved into photovoltaic power generation. At present, distributed photovoltaic power generation in China has become a pension investment project for many families, but it is still some people who have some of the photovoltaic power generation. Accessories are not very well understood, such as photovoltaic inverters, many engineering companies involved in this industry do not know why to use photovoltaics in solar photovoltaic power generation.

Solar power generation is a new field of energy conservation and environmental protection. It is a hot project in the world and has evolved into photovoltaic power generation. At present, distributed photovoltaic power generation in China has become a pension investment project for many families, but it is still some people who have some of the photovoltaic power generation. Accessories are not very well understood, such as photovoltaic inverters, many engineering companies involved in this industry do not know why to use photovoltaic inverters in solar photovoltaic power generation, today Xiaobian will bring everyone to learn the basics!


Why use photovoltaic inverters in solar photovoltaic power generation?

The principle of solar photovoltaic power generation is a technology that directly converts light energy into electrical energy by utilizing the photovoltaic effect of the semiconductor interface. The key component of this technology is the solar cell. The solar cells are packaged and protected in series to form a large-area solar cell module, and then combined with a power controller and other components to form a photovoltaic power generation device. The whole process is called photovoltaic power generation system. The photovoltaic power generation system is composed of solar battery array, battery pack, charge and discharge controller, photovoltaic inverter, AC power distribution cabinet, solar tracking control system and other equipment.


What role does the PV inverter play in it?

A photovoltaic inverter is a device that converts direct current into alternating current. Since the solar cell and the battery are DC power supplies, and the load is an AC load, the inverter is indispensable. According to the operation mode, the photovoltaic inverter can be divided into independent photovoltaic inverters and photovoltaic grid-connected inverters. Independently operated photovoltaic inverters are used in stand-alone solar cell power generation systems to power independent loads. Grid-connected inverters are used in solar cell power generation systems that operate in parallel. Solar cells generate direct current under sunlight, but systems powered by direct current have significant limitations. For example, fluorescent lamps, televisions, refrigerators, electric fans, etc. cannot be directly powered by DC power, as are most electric machines. In addition, when the power supply system needs to increase or decrease the voltage, the AC system only needs to add a transformer, and the technology of raising and lowering the voltage in the DC system is much more complicated. Therefore, in addition to special users such as communication and meteorology that directly use DC power, photovoltaic inverters are required to be installed in photovoltaic power generation systems that produce electricity for production and use.

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The photovoltaic inverter is the core of the entire photovoltaic power generation system. It not only allows the photovoltaic power generation to operate normally, but also monitors the working status of the photovoltaic power station in real time, which brings convenience for the later maintenance work.

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