A Single-Phase Photovoltaic Inverter Topology With a Series-Connected Energy Buffer

作者：Pierquet Brandon J^*; Perreault David J

来源：IEEE Transactions on Power Electronics, 2013, 28(10): 4603-4611.

DOI：10.1109/TPEL.2013.2237790

• AC module
• bidirectional power transfer
• cycloconverter
• dc-ac power converters
• distributed power generation
• double line-frequency ripple
• grid-connected PV systems
• high-frequency ac-link
• module integrated converter (MIC)
• multiport circuit
• photovoltaic (PV) inverter
• photovoltaic power systems
• resonant power converters
• single-phase energy storage
• single-phase inverters
• single-stage inverters
• switching circuits
• zero voltage switching

Module integrated converters (MICs) have been under rapid development for single-phase grid-tied photovoltaic applications. The capacitive energy storage implementation for the double-line-frequency power variation represents a differentiating factor among existing designs. This paper introduces a new topology that places the energy storage block in a series-connected path with the line interface block. This design provides independent control over the capacitor voltage, soft-switching for all semiconductor devices, and the full four-quadrant operation with the grid. The proposed approach is analyzed and experimentally demonstrated.

• 出版日期2013-10