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王立乔, 王艳, 王鹏磊, 等. 一种双接地单相可升降压非隔离光伏并网逆变器[J]. 太阳能学报, 2026,47(5):711-719.
王立乔, 王艳, 王鹏磊, et al. 一种双接地单相可升降压非隔离光伏并网逆变器[J]. 2026, 47(5): 711-719.
王立乔, 王艳, 王鹏磊, 等. 一种双接地单相可升降压非隔离光伏并网逆变器[J]. 太阳能学报, 2026,47(5):711-719. DOI: 10.19912/j.0254-0096.tynxb.2024-2422.
王立乔, 王艳, 王鹏磊, et al. 一种双接地单相可升降压非隔离光伏并网逆变器[J]. 2026, 47(5): 711-719. DOI: 10.19912/j.0254-0096.tynxb.2024-2422.
提出一种双接地单相可升降压非隔离光伏并网逆变器。该逆变器通过共用直流侧电感和交流侧电感电容将Zeta变换器和Cuk变换器组合在一起
构成双接地拓扑结构
具有升降压能力
且可适应宽范围变化的直流输入电压。该逆变器的双接地结构能完全消除漏电流
保证了系统的可靠性和安全性。此外
该逆变器无电解电容
具有体积小、成本低、效率高和寿命长等优点。详细阐述了逆变器的工作原理、升降压能力及调制策略。基于理论分析
完成该逆变器升降压、扰动以及并网控制的仿真和实验
结果良好且与理论分析一致。
A dual-grounded single-phase non-isolated grid-connected photovoltaic inverter capable of Buck-Boost operation is proposed in this paper. The inverter combines a Zeta converter and a Cuk converter by utilizing a shared DC-side inductor and an AC-side inductor and capacitor to form a dual-ground topology
which has the ability to Buck-Boost
and can adapt to a wide range of DC input voltage variations. The dual-grounding topology achieves complete suppression of parasitic leakage current
thereby enhancing system operational integrity and safety compliance. The inverter
devoid of electrolytic capacitors
is characterized by its compact size
low cost
high efficiency
and extended lifespan. The working principle
Buck-Boost capability
and modulation strategy of the inverter are detailed in this paper. Based on theoretical analysis
the simulation and experiment of the inverter's Buck-Boost operation
disturbance
and grid-connected control have been successfully completed
with results that are satisfactory and consistent with the theoretical analysis.
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王立乔, 陈建医, 武晨. 一种能够抑制共模电流的单级单相Buck-Boost光伏逆变器[J]. 太阳能学报, 2022, 43(11): 41-49.
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