Growatt has been focusing on the research and development of new energy equipment such as solar inverters, energy storage inverters and their monitoring systems. A solar inverter is a power electronic circuit that can convert the DC voltage of solar panels into AC voltage for driving AC loads such as household appliances, lighting and motor tools are key components of the entire solar power generation system. For specific solar radiation, temperature and battery type, the solar photovoltaic system has a unique optimal voltage and current, so that the photovoltaic system can produce the maximum energy. Therefore, in solar applications, the inverter must meet the following basic requirements. Let us learn about it with the owner of Zhejiang Solar Inverter
1. It has high efficiency. Since the current price of solar cells is relatively high, in order to maximize the use of solar cells and improve system efficiency, it is necessary to find ways to improve the efficiency of the inverter.
2. The DC input voltage has a wide adaptable range. Since the terminal voltage of the solar cell changes with the load and sunshine intensity, although the battery plays an important role in the voltage of the solar cell, the voltage of the battery changes with the remaining capacity of the battery. Fluctuates due to changes in internal resistance and internal resistance. Especially when the battery ages, its terminal voltage changes in a large range, which requires the inverter to ensure normal operation within a larger DC input voltage range and ensure the stability of the AC output voltage.
3. It has high reliability. At present, photovoltaic power generation systems are mainly used in remote areas, and many power stations are unattended and unmaintained. This requires the inverter to have a reasonable circuit structure, strict component selection, and requires the inverter to have various protection functions.
4. In medium and large-capacity photovoltaic power generation systems, the output of the inverter power supply should be a sine wave with small distortion. This is because in medium and large-capacity systems, if square wave power supply is used, the output will contain more harmonic components, and high-order harmonics will produce additional losses. The loads of many photovoltaic power generation systems are communication or instrument equipment. These The equipment has high requirements for the quality of the power grid. When medium and large-capacity photovoltaic power generation systems are connected to the grid, in order to avoid power pollution with the public grid, the inverter is also required to output a sine wave current.
The above information is provided by Shenzhen inverter manufacturer Growatt. Growatt New Energy is not only committed to the research and development and innovation of core product technologies, but also committed to providing customers with efficient services and creating a new era of Internet + online customer service. era. Continue to provide high-quality and efficient products and convenient and efficient services for photovoltaic power generation projects around the world.
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