Title :
Current control of a 3-level rectifier/inverter drive system
Author :
Klabunde, Michael C. ; Zhao, Yifan ; Lipo, Thomas A.
Author_Institution :
Dept. of Electr. & Comput. Eng., Wisconsin Univ., Madison, WI, USA
Abstract :
The marriage of a three-level voltage source inverter with a force-commutated three-level rectifier is examined in this paper. Three-level inverters are capable of reducing the output current harmonics dramatically compared with typical two-level inverters whereas a three-level rectifier of this type allows nearly sinusoidal input currents at unity fundamental power factor on the utility side of the drive system. The dual capacitor split voltage bus can be regulated from either the inverter or rectifier side with neutral point balance maintained. This paper address the issues of neutral point voltage control and current regulation from both the rectifier and inverter perspectives
Keywords :
AC-DC power convertors; DC-AC power convertors; commutation; electric current control; invertors; power factor; power system harmonics; rectifiers; rectifying circuits; voltage control; current regulation; dual capacitor split voltage bus; force-commutated three-level rectifier; neutral point balance; output current harmonics; sinusoidal input currents; three-level voltage source inverter; unity fundamental power factor; voltage control; Circuits; Current control; Feedback; Leg; Pulse width modulation inverters; Reactive power; Rectifiers; Switches; Switching converters; Voltage control;
Conference_Titel :
Industry Applications Society Annual Meeting, 1994., Conference Record of the 1994 IEEE
Conference_Location :
Denver, CO
Print_ISBN :
0-7803-1993-1
DOI :
10.1109/IAS.1994.377519
