Single-Phase Semi-Bridge Five-Level Flying-Capacitor Rectifier
作者： Carlos Alberto Teixeira , Donald Grahame Holmes , Brendan P. McGrath
关键词: Mechanical rectifier 、 Topology (electrical circuits) 、 Rectifier 、 Electronic engineering 、 Power factor 、 Voltage 、 Ripple 、 Engineering 、 Precision rectifier 、 Converters
摘要: For unity power factor applications such as grid-connected rectifiers, semi-bridge converters offer significant advantages over their full-bridge counterparts because of reduced active switch count and shoot-through-free phase leg structure. However, rectifiers have intrinsic operating limits that require a tradeoff between current distortion switching ripple. This paper presents new single-phase flying-capacitor (FC) rectifier significantly improves this tradeoff, with effective doubling in frequency the multilevel topology, capability to rectify higher output voltages lower voltage rated, more efficient, devices. applications, topology offers better balance cost performance than either diode followed by single-phase-leg three-level boost corrector (PFC) or five-level FC rectifier. Matching simulation experimental results are presented fully validate converter
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