The conversion efficiency of photovoltaic inverter

What is the conversion efficiency of photovoltaic inverter? Actually photovoltaic inverter conversion rate refers to the inverter will DianZhuan into the efficiency of electricity from solar panels. In photovoltaic power generation systems, inverter plays a convert solar panel from the direct current into alternating current (ac), and the role of the ac transmission to the power grid, the inverter of high conversion efficiency, for their own use and sale of electric power can be increased. Decided to inverter efficiency two factors: one is the dc into ac sine wave, the need to use using the circuit of the power semiconductors for direct current switch handle, power semiconductor heating can lead to loss at this moment, but by improving the design of the switching circuit, can make the loss to reduce to a minimum. Second, with the inverter control experience to improve efficiency. Output current and voltage of solar panels will change with the sunshine and temperature, the inverter can to optimal control of current and voltage, make its maximum electric power, which is to find the best in the shorter time power points, the higher the conversion efficiency will be. And this kind of control characteristics of the inverter because each varies according to manufacturer's products, its conversion efficiency is also different. For example, some although inverter conversion efficiency is high, the output of the maximum power but low power output conversion efficiency is lower; Still have a plenty of in high power output from a low power output to keep the average conversion efficiency, etc. So should be considered when selecting a inverter solar panel and by the matching between the output characteristics of sex.
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