Title :
Analysis of a multi-cell topology implemented with single-phase non-regenerative cells under an unbalanced AC mains
Author :
Baier, Carlos R. ; Pérez, Marcelo A. ; Espinoza, José R. ; Rodríguez, José R.
Author_Institution :
Dept. de Ingenieria Electrica, Univ. de Concepcion
Abstract :
The analysis of a multi-cell topology implemented with single-phase non-regenerative cells under an unbalanced AC mains is presented. The study shows that the topology naturally compensates the voltage unbalances; for instance, for a 100% voltage unbalance in the AC mains, just a 32% reaches the load. Additionally, in order to compensate the remaining unbalance at the load side, a feed-forward control technique is used. The strategy reduces near to zero the load fundamental voltage unbalance while the input current unbalance and distortion are improved as well. Simulated results confirm the theoretical considerations
Keywords :
compensation; feedforward; rectifying circuits; current distortion; feed-forward control technique; multicell topology; single-phase diode-rectifier; single-phase nonregenerative cell; unbalanced AC main; voltage unbalance compensation; AC generators; Feedforward systems; Medium voltage; Reactive power; Rectifiers; Semiconductor diodes; Topology;
Conference_Titel :
Industrial Electronics Society, 2005. IECON 2005. 31st Annual Conference of IEEE
Conference_Location :
Raleigh, NC
Print_ISBN :
0-7803-9252-3
DOI :
10.1109/IECON.2005.1568989
