Half-Wave Cycloconverter-Based Photovoltaic Microinverter Topology With Phase-Shift Power Modulation
Half-Wave Cycloconverter-Based Photovoltaic Microinverter Topology With Phase-Shift Power Modulation
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DOI：
10.1109/tpel.2012.2227502
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发表时间：
2013-06
影响因子：
6.7
通讯作者：
D. Nayanasiri;D. Vilathgamuwa;D. Maskell
中科院分区：
文献类型：
--
作者：
D. Nayanasiri;D. Vilathgamuwa;D. Maskell
提出了一种具有减少的功率转换级数量和更少的无源元件的并网微型逆变器。高频Transformer和串联谐振回路用于将全桥逆变器连接到半波循环变换器。所有电源开关均采用零电压开关。采用移相功率调制控制逆变器的输出功率。稳态分析的拓扑结构，以确定逆变器的平均输出功率。从逆变器的电压增益、品质因数和相移等方面对全桥和半波周波变换器的软开关进行了分析。仿真和实验结果验证了所提出的拓扑结构的操作。
A grid-connected microinverter with a reduced number of power conversion stages and fewer passive components is proposed. A high-frequency transformer and a series-resonant tank are used to interface the full-bridge inverter to the half-wave cycloconverter. All power switches are switched with zero-voltage switching. Phase-shift power modulation is used to control the output power of the inverter. A steady-state analysis of the proposed topology is presented to determine the average output power of the inverter. Analysis of soft switching of the full-bridge and the half-wave cycloconverter is presented with respect to voltage gain, quality factor, and phase shift of the inverter. Simulation and experimental results are presented to validate the operation of the proposed topology.