Title :
A three-phase AC to DC converter with controllable displacement factor
Author :
Williams, B.W. ; Mirkazemi-Moud, M. ; Tooth, D. ; Finney, S.J.
Author_Institution :
Dept. of Comput. & Electr. Eng., Heriot-Watt Univ., Edinburgh, UK
Abstract :
An IGBT three-phase unidirectional AC to DC power converter is presented which has reduced on-state and switching losses and sinusoidal input current. Use of linearised overmodulation, up to full rectification conditions, improves output voltage transient performance. Output filter capacitor current monitoring provides differential output voltage information for a PI and velocity controller. Output inductor current feedback eliminates triplen AC line components resulting from the use of an output inductor of finite inductance
Keywords :
AC-DC power convertors; bipolar transistor switches; insulated gate bipolar transistors; losses; power bipolar transistors; power semiconductor switches; power system harmonics; rectifying circuits; switching circuits; two-term control; voltage control; IGBT; PI control; circuit design; controllable displacement factor; differential output voltage information; linearised overmodulation; on-state losses; output filter capacitor current monitoring; output inductor; output inductor current feedback; output voltage transient performance; rectification; sinusoidal input current; soft switching; switching losses; three-phase AC/DC power converter; triplen AC line components; Analog-digital conversion; DC-DC power converters; Displacement control; Inductors; Information filtering; Information filters; Insulated gate bipolar transistors; Switching converters; Switching loss; Voltage;
Conference_Titel :
Power Electronics Specialists Conference, 1995. PESC '95 Record., 26th Annual IEEE
Conference_Location :
Atlanta, GA
Print_ISBN :
0-7803-2730-6
DOI :
10.1109/PESC.1995.474937
