Open-loop power converters are feasible if the output resistance of the converter is as low as possible, and a possible solution is the minimization of power losses. The solution is the use of a three-phase transformer with a delta-wye connection within a full-bridge converter topol- ogy. The configuration will be referred to as 3boost power supply. The three-phase transformer replaces the common single-phase transformer, and it is driven by a three-phase full-bridge inverter operating in six-step modulation. At secondary, a three-phase full wave diode rectifier is used to obtain the output dc volt- age level. Therefore, a unitary transformer utilization factor is achieved. This topology allows to achieve a high efficiency, a lower ripple factor, and a good EMC behavior.
F. VIOLI, G. FRANCESCHINI, A. BELLINI, E. LORENZANI, M. CAVATORTA (2004). A DC/DC three-phase converter.
A DC/DC three-phase converter
BELLINI, ALBERTO;
2004
Abstract
Open-loop power converters are feasible if the output resistance of the converter is as low as possible, and a possible solution is the minimization of power losses. The solution is the use of a three-phase transformer with a delta-wye connection within a full-bridge converter topol- ogy. The configuration will be referred to as 3boost power supply. The three-phase transformer replaces the common single-phase transformer, and it is driven by a three-phase full-bridge inverter operating in six-step modulation. At secondary, a three-phase full wave diode rectifier is used to obtain the output dc volt- age level. Therefore, a unitary transformer utilization factor is achieved. This topology allows to achieve a high efficiency, a lower ripple factor, and a good EMC behavior.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
