A modified capacitor voltage control algorithm for suppressing the effect of measurement noise on grid-connected Z-source inverters controllers
A modified capacitor voltage control algorithm for suppressing the effect of measurement noise on grid-connected Z-source inverters controllers
复制标题
一种改进的电容器电压控制算法，用于抑制测量噪声对并网 Z 源逆变器控制器的影响
DOI：
10.1109/iecon.2013.6699136
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发表时间：
2013
期刊：
影响因子：
--
通讯作者：
A. Massoud
中科院分区：
文献类型：
--
作者：
Ahmed A. Hakeem;A. Elserougi;Amr El Zawawi;Shehab Ahmed;A. Massoud
逆变器被认为是轨道电网接口安全可靠的研究目标。在过去的二十年中，传统逆变器被认为是电网连接的合适候选者，Z源逆变器（ZSI）与对应的电压源逆变器（VSI）和电流源逆变器（CSI）相比具有降压/升压电压能力。因此，ZSI介绍了DG单级并网的优点，特别是与可再生能源的并网。在单级网格接口中，关键参数的适当控制是必不可少的。在ZSI操作中，电容器电压是最重要的关键参数，其可以通过升压因子来控制。本文对传统的电容电压控制进行了改进，以提高并网ZSI的性能，并增加其对测量噪声的免疫力。整个仿真验证了所提出的修改。此外，从并网ZSI原型获得的实验结果证实了所提出的改进。
Inverters are considered the orbit of research objectives for safe and reliable grid interface. Amongst the conventional inverters known as suitable candidates for gird connection in the last two decades, Z-source inverter (ZSI) emerged with buck/boost voltage capabilities compared to the counterpart voltage source inverter (VSI) and current source inverter (CSI). Therefore, ZSI introduces the merit of single stage grid interfacing of DG especially with renewable energy sources. Proper control of key parameters in single stage grid interface is essential. In the ZSI operation, the capacitor voltage is the most vital key parameter which can be controlled throughout the boosting factor. In this paper, the conventional capacitor voltage control is modified to enhance the performance of grid-connected ZSI and increase its immunity against the measurement noise. The proposed modification is verified throughout simulation. Furthermore, the experimental results obtained from a grid-connected ZSI prototype substantiate the proposed improvement.