Z-source converter configurations make it possible to overcome intrinsic limits present in conventional ac–dc and dc–ac converters. A typical three-phase inverter cannot supply output voltages greater than the voltages at its input; in the same manner, a typical three-phase boost rectifier cannot supply output voltages lower than input voltages. Using Z-source topology permits overcoming both these limits. In fact, a Z-source boost rectifier can theoretically either step-up or step-down the output voltage to any desired value starting from the conventional three-phase diode bridge rectifier output voltage level. In addition, it presents intrinsic immunity to shoot-through states, resulting in improved reliability of the entire system. In this study, attention is focused on the mathematical modelling of a three-phase Z-source boost rectifier for power factor correction power supply applications; using such a topology as first-stage converter allows designing the second-stage converters with the same voltage constraints of single-phase units.

LO CALZO, G., Lidozzi, A., Solero, L., Crescimbini, F. (2012). Three-Phase Z-Source Power Supply Design. IET POWER ELECTRONICS, 5(8), 1270-1281 [10.1049/iet-pel.2012.0130].

Three-Phase Z-Source Power Supply Design

LO CALZO, GIOVANNI;LIDOZZI, ALESSANDRO;SOLERO, LUCA;CRESCIMBINI, Fabio
2012-01-01

Abstract

Z-source converter configurations make it possible to overcome intrinsic limits present in conventional ac–dc and dc–ac converters. A typical three-phase inverter cannot supply output voltages greater than the voltages at its input; in the same manner, a typical three-phase boost rectifier cannot supply output voltages lower than input voltages. Using Z-source topology permits overcoming both these limits. In fact, a Z-source boost rectifier can theoretically either step-up or step-down the output voltage to any desired value starting from the conventional three-phase diode bridge rectifier output voltage level. In addition, it presents intrinsic immunity to shoot-through states, resulting in improved reliability of the entire system. In this study, attention is focused on the mathematical modelling of a three-phase Z-source boost rectifier for power factor correction power supply applications; using such a topology as first-stage converter allows designing the second-stage converters with the same voltage constraints of single-phase units.
LO CALZO, G., Lidozzi, A., Solero, L., Crescimbini, F. (2012). Three-Phase Z-Source Power Supply Design. IET POWER ELECTRONICS, 5(8), 1270-1281 [10.1049/iet-pel.2012.0130].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11590/278759
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