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首页> 外文期刊>IEEE Transactions on Industrial Electronics >Multilevel Inverter Topology for Renewable Energy Grid Integration
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Multilevel Inverter Topology for Renewable Energy Grid Integration

机译：用于可再生能源网格集成的多级逆变器拓扑

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In this paper, a novel three-phase parallel grid-connected multilevel inverter topology with a novel switching strategy is proposed. This inverter is intended to feed a microgrid from renewable energy sources (RES) to overcome the problem of the polluted sinusoidal output in classical inverters and to reduce component count, particularly for generating a multilevel waveform with a large number of levels. The proposed power converter consists of two-level phase inverters connected in parallel, where is the number of RES. The more the number of RES, the more the number of voltage levels, the more faithful is the output sinusoidal waveform. In the proposed topology, both voltage pulse width and height are modulated and precalculated by using a pulse width and height modulation so as to reduce the number of switching states (i.e., switching losses) and the total harmonic distortion. The topology is investigated through simulations and validated experimentally with a laboratory prototype. Compliance with the and standards is presented and an exhaustive comparison of the proposed topology is made against the classical cascaded H-bridge topology.
机译：本文提出了一种新颖的具有新型开关策略的三相并联并网多电平逆变器拓扑。该逆变器旨在从可再生能源（RES）馈送微电网，以克服传统逆变器中正弦输出污染的问题，并减少组件数量，尤其是生成大量电平的多电平波形时。拟议的功率转换器由并联的两级相位逆变器组成，其中RES的数量。 RES的数量越多，电压电平的数量越多，输出正弦波形越忠实。在提出的拓扑中，通过使用脉冲宽度和高度调制来调制和预先计算电压脉冲宽度和高度，以减少开关状态的数量（即，开关损耗）和总谐波失真。通过仿真研究拓扑，并通过实验室原型进行实验验证。提出了，和标准的合规性，并对建议的拓扑与经典的级联H桥拓扑进行了详尽的比较。

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