考虑可再生能源接入电厂带宽的并网逆变器重复控制器设计与分析

2014 International Conference on Renewable Energy Research and Application (ICRERA) Pub Date : 2014-10-01 DOI:10.1109/ICRERA.2014.7016429

M. Jamil, R. Arshad, U. Rashid, Y. Ayaz, M. N. Khan

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引用次数: 8

摘要

对象带宽在任何反馈控制器的设计中都起着至关重要的作用。对于基于重复控制器(RC)的系统，它的重要性更大，因为它需要在期望频率下提供更高的增益。本文讨论了一种基于LCL滤波器的并网逆变器的重复控制器的设计，重点讨论了设备带宽。研究了LCL滤波器的电容值与装置带宽的关系。在存在不同的实用电压谐波和实用阻抗不确定性的情况下，测试了重复控制器在不同设备带宽下的有效性。结果表明，为了保证重复控制器的有效性，必须选择合适的LCL滤波器电容值。

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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Design and analysis of repetitive controllers for grid connected inverter considering plant bandwidth for interfacing renewable energy sources

The plant bandwidth plays a vital role in the design of any feedback controller. Its importance is more for repetitive controller (RC) based systems because it is required to provide higher gains at desired frequencies. This paper discusses design of the repetitive controller (RC) for a LCL filter based grid connected inverter with special emphasis on plant's bandwidth. The relation between plant bandwidth and the capacitor value of the LCL filter is also investigated. The effectiveness of the repetitive controller for different plant bandwidths is tested in the presence of different utility voltage harmonics and uncertainty in utility impedance. The results show that a suitable value of the capacitor in LCL filter must be selected in order to provide enough bandwidth for the repetitive controller to be effective.

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2014 International Conference on Renewable Energy Research and Application (ICRERA)

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