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What are frequency converters and what types are there?
- by Chrisitan Hansel
- 1 min reading time
Frequency converters are devices used to control the speed of electric motors by adjusting the frequency of the power supply. There are several types of frequency converters, including:
Scalar frequency converters
These are the most basic types of frequency converters and are used to control the speed of a single phase induction motor.
Vector frequency converter
These are more advanced frequency converters that use vector control to control the speed of three-phase induction motors.
AC-DC frequency converter
These frequency converters convert AC power to DC power, which can then be used to control the speed of a DC motor.
AC-AC frequency converter
These variable speed drives convert AC power to AC power at a different frequency that can be used to control the speed of an AC motor.
Pulse width modulated (PWM) frequency converters
These frequency converters use pulse width modulation to control the speed of an electric motor.
cycloconverter
This is a type of variable speed drive that can change the frequency of an AC power supply without using a DC connection.
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