AC drives, inverters, and adjustable frequency drives are all
terms that are used to refer to equipment designed to control
the speed of an AC motor. The term SIMOVERT is used by
Siemens to identify a SIemens MOtor inVERTer (AC drive).
AC drives receive AC power and convert it to an adjustable
frequency, adjustable voltage output for controlling motor
operation. A typical inverter receives 480 VAC, three-phase,
60 Hz input power and in turn provides the proper voltage and
frequency for a given speed to the motor. The three common
inverter types are the variable voltage inverter (VVI), current
source inverter (CSI), and pulse width modulation (PWM).
Another type of AC drive is a cycloconverter. These are
commonly used for very large motors and will not be described
in this course. All AC drives convert AC to DC, and then through
various switching techniques invert the DC into a variable
voltage, variable frequency output.
terms that are used to refer to equipment designed to control
the speed of an AC motor. The term SIMOVERT is used by
Siemens to identify a SIemens MOtor inVERTer (AC drive).
AC drives receive AC power and convert it to an adjustable
frequency, adjustable voltage output for controlling motor
operation. A typical inverter receives 480 VAC, three-phase,
60 Hz input power and in turn provides the proper voltage and
frequency for a given speed to the motor. The three common
inverter types are the variable voltage inverter (VVI), current
source inverter (CSI), and pulse width modulation (PWM).
Another type of AC drive is a cycloconverter. These are
commonly used for very large motors and will not be described
in this course. All AC drives convert AC to DC, and then through
various switching techniques invert the DC into a variable
voltage, variable frequency output.
0 comments:
Post a Comment