多级逆变器并网谐波缓解光伏发电注入

2017 IEEE International Autumn Meeting on Power, Electronics and Computing (ROPEC) Pub Date : 2017-11-01 DOI:10.1109/ROPEC.2017.8261662

Francisco Ramón Urquijo Ramos, J. Ramírez, J. Jiménez, L. Hernández

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引用次数: 2

摘要

本文提出了一种多级单相变换器，作为向电网注入光伏电力的一种选择，并展示了如何同时使用它来补偿功率因数。该变换器由三个单元级联组成，每个单元是一个h桥逆变器。为了实现功率注入，使用了相对较低的开关频率和小尺寸的耦合电感。为了保持直流链路的稳定，采用了一种控制策略。此外，还详细说明了该控制策略如何能够通过补偿无功功率和谐波畸变来改善电能质量。通过在PSIM模拟器上的仿真结果验证了变换器的性能及其控制。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Multi-level inverter connected to the grid with harmonic mitigation for photovoltaic power injection

This paper presents a multi-level single-phase converter as an option to inject photovoltaic power into the grid and it is shown how at the same time it can be used to compensate power factor. The converter consists of three cell connected in cascade, each cell is an H-bridge inverter. A relatively low switching frequency and low size coupling inductance are used in order to achieve the power injection. In order to maintain regulated dc links a control strategy is carried out. Also, how this control strategy is capable to improve power quality, through to compensate reactive power and harmonic distortion, is shown in detail. The performance of the converter and its control is validated through simulation results on PSIM simulator.

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2017 IEEE International Autumn Meeting on Power, Electronics and Computing (ROPEC)

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