Inverter is also called the power regulator, according to the inverter in the use of photovoltaic power generation system can be divided into independent model power source and grid with two. According to the waveform can be divided into the square wave modulation mode, staircase inverter, inverter sine wave inverter and combined the three to buck
inverter is also called the power regulator, according to its application in photovoltaic power generation systems, can be divided into independent power supply and grid power supply. According to the waveform modulation mode, can be divided into the square wave inverter, staircase inverter, three-phase inverter sine wave inverter and combination. For grid inverter used in the system, according to the presence of transformer, can be divided into the transformer type inverter and transformer type inverter. In a photovoltaic system, in addition to the roof component system, is the inverter inverter is a kind of conversion device and electrical system, will have a sunlight to produce solar cell module, dc converted to meet the requirements of the grid current source, and transfer the energy to power grid. The main function of the inverter DC gas turbine; Ac conversion, photovoltaic system data acquisition, battery string and power grid parameters monitoring. It is the core of the photovoltaic system. Which is one of the early origins of inverter. Due to the inverter to the grid connection of different countries and power grid safety regulations certification, so every country has different brand. With China's large-scale production and application of the photovoltaic industry, domestic solar inverter also has its place in the world. Inverter need ventilation and heat dissipation, so they are usually installed in the outdoor, but cannot be directly exposed to the sun. As a result, they are often installed near the household metering box.