Title :
Digital enhancement of analog current regulators for three phase motor drives
Author :
Wiley, Brain ; Hudson, Raymond ; Spee, Rene
Author_Institution :
Kenetech Windpower, Livermore, CA, USA
Abstract :
A common motor drive configuration is the field-oriented controller with a pulse-width-modulated inverter. The controller has a digital processor and analog current regulator. Common forms of the current regulator have both steady state errors which degrade the field orientation and a suboptimal modulation scheme which produces excessive losses in the inverter. These deficiencies may be improved by digital processing
Keywords :
AC motor drives; PWM invertors; controllers; digital control; electric current control; losses; machine control; power engineering computing; analog current regulators; digital enhancement; digital processor; excessive losses; field-oriented controller; pulse-width-modulated inverter; steady state errors; suboptimal modulation scheme; three phase motor drives; Bandwidth; Current control; Degradation; Digital control; Motor drives; Pulse width modulation; Pulse width modulation inverters; Regulators; Steady-state; Voltage;
Conference_Titel :
Applied Power Electronics Conference and Exposition, 1995. APEC '95. Conference Proceedings 1995., Tenth Annual
Conference_Location :
Dallas, TX
Print_ISBN :
0-7803-2482-X
DOI :
10.1109/APEC.1995.469082
