光伏就是把太陽能轉化為電能的過程，但太陽能產生的是直流電，而電網傳輸、設備運行使用的都是交流電，所以需要把直流轉化為交流。交流轉直流叫整流，直流轉交流叫逆變，這個設備是：逆變器。是光伏的核心部件，常用在新能源汽車里。它的轉化效率時刻影響著發電效率，把電池的直流轉換為交流，以供電機使用。逆變器的重要性堪比燃油車的變速箱，因為它負責控制電流、電壓和頻率，從而改變電機的轉速、扭矩，影響著電機的能耗、馬力，對純電續航和性能影響巨大。 

The heart of photovoltaics - inverters

Photovoltaics is the process of converting solar energy into electrical energy, but solar energy generates direct current, while the power grid transmission and equipment operation use alternating current, so it is necessary to convert direct current into alternating current. The conversion of AC to DC is called rectification, and the conversion of DC to AC is called inversion. This device is an inverter. It is the core component of photovoltaics and is commonly used in new energy vehicles. Its conversion efficiency constantly affects the power generation efficiency, converting the DC of the battery into AC for use by the motor. The importance of an inverter is comparable to that of a gearbox in a gasoline car, as it is responsible for controlling current, voltage, and frequency, thereby changing the speed and torque of the motor, affecting its energy consumption and horsepower, and having a huge impact on pure electric range and performance.