Title :
A Hybrid Approach to Improve the Robustness Against Unbalanced Voltage Supply and Cancel the Common Mode Voltage for a 3-ph Buck-Type Rectifier
Author :
Aziz, Junaidi Abdul ; Klumpner, Christian ; Clare, Jon
Author_Institution :
School of Electrical and Electronic Engineering, University of Nottingham, University Park, Nottingham NG7 2RD, United Kingdom
fDate :
Aug. 30 2006-Sept. 1 2006
Abstract :
This paper investigates the utilization of a buck-type current source rectifier as an active front-end stage for an AC/AC converter for applications that require adjustable step-down DC-link voltage with improved upper voltage limit robust to unbalanced voltage supply and additionally eliminating the low-frequency common mode voltage from its dc-link voltage. The proposed solution is to add two asymmetric H-bridge inverters in series with each of the DC-side terminals of the buck rectifier to allow injection of differential and common mode voltage in order to achieve the above goals.
Keywords :
Circuit topology; Energy storage; Frequency; Inductors; Inverters; Phase modulation; Rectifiers; Robustness; Switches; Voltage control;
Conference_Titel :
Power Electronics and Motion Control Conference, 2006. EPE-PEMC 2006. 12th International
Conference_Location :
Portoroz
Print_ISBN :
1-4244-0121-6
DOI :
10.1109/EPEPEMC.2006.4778474
