The Difference Between Frequency Converters and Inverters: A frequency converter is composed of circuits such as AC-to-DC-to-AC (modulated wave), and its standard name should be Frequency Converter. Its output voltage waveform is a pulse square wave, with a high harmonic content. The voltage and frequency change proportionally simultaneously, and cannot be adjusted separately, which does not meet the requirements of AC power sources. In principle, it is not suitable for use as a power supply. It is generally only used for speed control of three-phase asynchronous motors.
The entire circuit of the frequency converter consists of AC to DC, DC to AC, and filtering sections, thus its output voltage and current waveforms are pure sine waves, very close to an ideal AC power supply. It can output any grid voltage and frequency in the world. Aviation ground power 2, 36V aviation power 1, 400Hz frequency converter 7, 115/200V power 2, 27V DC power 5, 400Hz power 12, aviation power.
The Working Principle of Frequency Converters Frequency converters utilize the on-off action of electrical semiconductor devices to convert AC power sources into electrical energy of a different frequency. They can be categorized into AC-AC frequency converters and AC-DC-AC frequency converters. The AC-AC frequency converter can directly transform alternating current into an AC with variable frequency and voltage. The AC-DC-AC frequency converter first converts AC into DC through a rectifier, and then uses an inverter to change this DC current into an AC with variable frequency and voltage.
