Warsaw rectifier
{{Short description|AC to DC conversion circuit}}The Warsaw rectifier is a pulse-width modulation (PWM) rectifier
Features
The Warsaw Rectifier provides the following features:
- Unity power factor Koczara W., Bialoskorki P., "Unity power factor three phase rectifiers" Power Electronics Specialists Conference, 1993. PESC '93 Record., 24th Annual IEEE at [https://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=471997&queryText=koczara&sortType=asc_p_Publication_Year]
- Three-wire input, which does not require a connection to the neutral wire
- Ohmic behaviour
- Controlled output voltage
- Simple control scheme
- Low power losses
Unique features of the Warsaw Rectifier:
- Short circuits do not cause current to flow through switches
- No cross-short circuiting of switches possible
- Dead time is not required
Topology
The Warsaw rectifier is a unidirectional, three-phase, three-switch two-level pulse-width modulation (PWM) rectifier. This topology uses three insulated-gate field-effect transistors (IGFET) and eighteen diodes. The bidirectional switches (composed of four diodes and one IGFET circuit) are connected in a delta topology. The rectifier output does not require a divided DC-link circuit as required in the Vienna rectifier topology.D. Carlton, W.G. Dunford, M. Edmunds, “Continuous conduction mode operation of a three-phase power-factor correction circuit with quasi tri-directional switches” Power Electronics Specialists Conference, 1999. PESC 99. 30th Annual IEEE [https://ieeexplore.ieee.org/document/789004/]Bałkowiec T., “Three Phase Warsaw Boost Rectifier for High Power Variable Speed Power Generation” Prace Naukowe Instytutu Maszyn, Napędów i Pomiarów Elektrycznych
Politechniki Wrocławskiej, Nr 71, 2015 at [http://www.imnipe.pwr.wroc.pl/files/prv/id35/wyd/pn/sim35/sim35-art01.pdf http://www.imnipe.pwr.wroc.pl]