Title :
A three-phase predictive PWM AC/DC converter with phase compensation and space vector control
Author :
Chen, Longchun ; Blaabjerg, Frede
Author_Institution :
Inst. of Energy Technol., Aalborg Univ., Denmark
Abstract :
In this paper, a current-controlled three-phase PWM AC/DC power converter is described. The current control is based on the predictive and the space vector PWM scheme. The phase shift caused by the predictive current control is compensated adaptatively so that the predictive-controlled PWM AC/DC power converter can maintain its performance with unity power factor and fixed switching frequency at low sampling frequency. The control system is implemented by an 8-bit microcontroller. By using the space vector control, low ripples in the current and the voltage as well as fast dynamic responses are achieved with a small DC link capacitance employed
Keywords :
AC-DC power convertors; PWM power convertors; adaptive control; compensation; electric current control; microcontrollers; power factor; power system harmonics; predictive control; rectifying circuits; switching circuits; 8 bit; DC link capacitance; adaptive compensation; dynamic response; fixed switching frequency; harmonics; microcontroller; performance; phase shift; predictive current control; sampling frequency; space vector PWM scheme; three-phase PWM AC/DC power converter; unity power factor; Analog-digital conversion; Current control; DC-DC power converters; Pulse width modulation; Pulse width modulation converters; Reactive power; Sampling methods; Space vector pulse width modulation; Switching converters; Switching frequency;
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.1995.469042
