Working principle of frequency converter:


The principle of frequency converter is an electric energy control device that uses the on-off function of power semiconductor devices to convert the power frequency power supply into another frequency. It can be divided into AC-AC frequency converter and AC-DC-AC frequency converter. AC-AC converter can directly change AC into AC with variable frequency and voltage; The AC-DC-AC converter first rectifies the AC current into DC through the rectifier, and then converts the DC current into AC with variable frequency and voltage through the inverter.