High-Efficiency Single-Phase Transformerless PV H6 Inverter With Hybrid Modulation Method
High-Efficiency Single-Phase Transformerless PV H6 Inverter With Hybrid Modulation Method
复制标题
采用混合调制方式的高效单相无变压器光伏H6逆变器
DOI:
10.1109/tie.2012.2225391
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发表时间:
2013-05
影响因子:
7.7
通讯作者:
Zhao, Jianfeng
中科院分区:
文献类型:
--
作者:
Ji, Baojian;Wang, Jianhua;Zhao, Jianfeng
The main contribution of this paper is the derivation rules summarized from existing high-performance inverters with H6-type configuration, which makes novel topologies possible. In addition, a novel high-efficiency single-phase transformerless photovoltaic inverter with hybrid modulation method is also proposed and evaluated as an example. Without input split capacitors, common-mode voltage and leakage current issues in a nonisolated system with H6-type configuration are eliminated, and the feature of a three-level output voltage in the inverter bridge's middle point helps inductors and power quality optimization. The detailed operation principles with hybrid modulation strategy combined with unipolar and bipolar pulsewidth modulation schemes are presented. Experimental results of a 2200VA prototype verify the proposed topology with hybrid modulation method.
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影响因子:
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