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首页> 外文期刊>Electric Power Components and Systems >A Switched-Capacitor Multilevel Inverter with Reduced Power Components in Current Loops for Renewable Energy Generation
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A Switched-Capacitor Multilevel Inverter with Reduced Power Components in Current Loops for Renewable Energy Generation

机译：电流回路中功率成分减少的开关电容器多电平逆变器，可再生能源的产生

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摘要

A switched-capacitor multilevel inverter (SCMLI) is proposed in this article for the DC-AC conversion in the renewable energy generation (REG) system. The proposed topology reserves the advantages of common SCMLIs, such as the boost ability, the self-voltage balancing of capacitors, and the inductive-load. Thus, the conventional two-stage DC-AC structure in the REG system can be realized through a single stage with only one controller, thus decreasing the complexity and increasing the efficiency. The major advantage of the proposed SCMLI over the existing ones is that reduced components are contained in current loops, which can further increase the conversion efficiency. The circuit topology, operating mechanism, and parameter analysis of the proposed SCMLI are presented. Qualitative and quantitative efficiency comparisons with typical SCMLIs are conducted. A nine-level simulation model and the corresponding experimental prototype are implemented for performance evaluations. Finally, the feasibility and superiority are verified by a 230-W experimental prototype.
机译：本文提出了一种开关电容多电平逆变器（SCMLI），用于可再生能源发电（REG）系统中的DC-AC转换。提出的拓扑保留了常见SCMLI的优势，例如升压能力，电容器的自电压平衡和感性负载。因此，REG系统中的常规两级DC-AC结构可以通过仅具有一个控制器的单级来实现，从而降低了复杂度并提高了效率。与现有的SCMLI相比，所建议的SCMLI的主要优势在于，电流环路中包含的组件减少了，这可以进一步提高转换效率。介绍了所提出的SCMLI的电路拓扑，工作机制和参数分析。进行了与典型SCMLI的定性和定量效率比较。实施了九级仿真模型和相应的实验原型以进行性能评估。最后，通过230瓦实验原型验证了可行性和优越性。

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