，其直流回路濾波是電感。是整流器，整流器，逆變器。而變頻器的主電路由整流器、平波回路和逆變器三有些構(gòu)成，將工頻電源變換為直流功率的“整流器”，吸收在變流器和逆變器產(chǎn)生的電壓脈動的“平波回路。
Landing stage voltage converter can be divided into two kinds of popular type and electric drive. Voltage type is converted to a DC voltage source inverter communication, the DC circuit is a capacitive filter. Current type is converted to DC current source inverter communication, the DC circuit filter inductor. A rectifier, a rectifier, an inverter. The main circuit of the inverter by the rectifier, smoothing circuit and an inverter constitute some three, the frequency power into DC power, "rectifier" absorbed in the converter and the inverter generates a voltage ripple of "smoothing circuit.