Title :
Comparison of three-phase PWM rectifiers to interface Ac grids and bipolar Dc active distribution networks
Author :
Moia, Joabel ; Lago, Jackson ; Perin, Arnaldo J. ; Heldwein, Marcelo L.
Author_Institution :
Power Electron. Inst. (INEP), Fed. Univ. of Santa Catarina (UFSC), Florianopolis, Brazil
Abstract :
Dc active distribution networks seem to be a technically viable solution where high transmission efficiency, power quality, reliability and distributed generation are required. Modern power conversion devices are to be employed in order to create such networks by connecting them to three-phase ac power systems. This work present the evaluation of two-level and three-level (NPC) bidirectional voltage source rectifier topologies for bipolar dc active networks from the perspective of power semiconductor efforts, efficiency, volume and weight. The evaluation methodology based on the rotating reference frame is used in the analysis of a 160 kVA NPC converter feeding unbalanced dc loads and the impact of this in the converter volume and weight is presented. Furthermore, the maximum dc-side load unbalance for the NPC rectifier is derived.
Keywords :
PWM rectifiers; power distribution reliability; power grids; power supply quality; bidirectional voltage source rectifier topologies; bipolar DC active distribution networks; converter volume; dc side load unbalance; distributed generation; interface AC grids; power quality; rotating reference frame analysis; three phase PWM rectifiers; transmission efficiency; Distributed power generation; Network topology; Power electronics; Pulse width modulation; Steady-state; Topology; Power Rectifier Topologies; Semiconductor Efforts; rotating reference frame analysis;
Conference_Titel :
Power Electronics for Distributed Generation Systems (PEDG), 2012 3rd IEEE International Symposium on
Conference_Location :
Aalborg
Print_ISBN :
978-1-4673-2021-4
Electronic_ISBN :
978-1-4673-2022-1
DOI :
10.1109/PEDG.2012.6254005
