Title :
A 3-phase boost converter for lowering the input current distortion of a VSI drive using mutually coupled DC-link inductors
Author :
Salmon, John C. ; Nowicki, Edwin
Author_Institution :
Dept. of Electr. Eng., Alberta Univ., Edmonton, Alta., Canada
Abstract :
This paper presents a 3-phase rectifier topology that superimposes a high frequency switchmode power converter on top of a standard diode rectifier. The switchmode converter uses a 3-phase Y-connected bi-directional switch (3φ Y-switch) network and a single switch boost converter to selectively draw a 180 Hz triangular wave current from the 60 Hz AC-line. Due to the mutual coupling of the rectifier DC-link inductors, this current flows back to the AC-side by splitting equally between the upper and lower rectifier DC rails. This current path, together with the current path associated with “standard diode rectifier” operation, produces a high quality sinusoidal line-current waveshape with very low line current harmonic distortion; ideally 4.7%
Keywords :
DC-AC power convertors; diodes; electric drives; harmonic distortion; inductors; invertors; power convertors; power system harmonics; rectifying circuits; switched mode power supplies; switching circuits; 180 Hz; 3-phase Y-connected bi-directional switch; 3-phase boost converter; 3-phase rectifier topology; 60 Hz; VSI drive; current path; diode rectifier; high frequency switchmode power converter; input current distortion; low line current harmonic distortion; mutual coupling; mutually coupled DC-link inductors; rectifier DC-link inductors; single switch boost converter; sinusoidal line-current waveshape; triangular wave current; Bidirectional control; Diodes; Frequency conversion; Inductors; Mutual coupling; Network topology; Rails; Rectifiers; Switches; Switching converters;
Conference_Titel :
Electrical and Computer Engineering, 1995. Canadian Conference on
Conference_Location :
Montreal, Que.
Print_ISBN :
0-7803-2766-7
DOI :
10.1109/CCECE.1995.526565
