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    【24h】Modified Single-Phase Single-Stage Grid-Tied Flying Inductor Inverter With MPPT and Suppressed Leakage Current

    机译具有MPPT和抑制漏电流的改进型单相单相并网型飞线逆变器

    【摘要】In this paper, an improved transformerless single-phase single-stage grid-tied flying inductor inverter is presented. The negative terminal of the photovoltaic (PV) array is grounded in the improved topology, which increases reliability and suppresses the leakage current. The proposed topology has buck-boost capability without increasing the number of required components and has a high efficiency. An improved control algorithm for proper operation of the proposed topology which decreases switching losses has been investigated. Moreover, a perturbation and observation maximum power point tracking (MPPT) algorithm has been adapted to the proposed inverter, which does not utilize proportional-integral (PI) controllers, for the purpose of the MPPT. Furthermore, a design procedure of the passive elements of the converter based on the corresponding operating has been demonstrated. Simulation in MATLAB Simulink plus an experimental prototype is developed to reconfirm the designed results. Finally, a comparison study has been investigated for better clarification of the advantages and disadvantages of the proposed inverter.

    【摘要机译】本文提出了一种改进的无变压器单相单级并网飞电感逆变器。光伏(PV)阵列的负极在改进的拓扑结构中接地,从而提高了可靠性并抑制了泄漏电流。所提出的拓扑具有降压-升压能力,而无需增加所需组件的数量,并且具有很高的效率。已经研究了用于所提出的拓扑结构的适当操作的改进的控制算法,该算法降低了开关损耗。此外,摄动和观测最大功率点跟踪(MPPT)算法已针对提出的逆变器进行了修改,该逆变器出于MPPT的目的,不使用比例积分(PI)控制器。此外,已经证明了基于相应操作的转换器的无源元件的设计过程。在MATLAB Simulink中进行仿真,并开发出一个实验原型来重新确认设计结果。最后,为了更好地弄清所提出的逆变器的优缺点,进行了一项比较研究。

    【作者】Mehdi Tofigh Azary;Mehran Sabahi;Ebrahim Babaei;Farhad Abbasi Aghdam Meinagh;

    【作者单位】;

    【年(卷),期】2018(65),1

    【年度】2018

    【页码】221-231

    【总页数】11

    【原文格式】PDF

    【正文语种】eng

    【中图分类】;

    【关键词】Switches;Inverters;Inductors;Leakage currents;Topology;Capacitors;Switching loss;

    机译 开关;逆变器;电感器;漏电流;拓扑;电容器;开关损耗;
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