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【24h】Quasi Cascaded H-Bridge Five-Level Boost Inverter

机译准级联H桥五电平升压逆变器

【摘要】Latterly, multilevel inverters have become more attractive for researchers due to low total harmonic distortion in the output voltage and low electromagnetic interference. This paper proposes a novel single-stage quasi-cascaded H-bridge five-level boost inverter (qCHB-FLBI). The proposed five-level inverter has the advantages over the CHB quasi-Z-source inverter in cutting down passive components. Consequently, size, cost, and weight of the proposed inverter are reduced. Additionally, the proposed qCHB-FLBI can work in the shoot-though state. A capacitor with low voltage rating is added to the proposed topology to remove an offset voltage of the output ac voltage when the input voltages of two modules are unbalanced. Besides, a simple PID controller is used to control the capacitor voltage of each module. This paper presents circuit analysis, the operating principles, and simulation results of the proposed qCHB-FLBI. A 1.2-kVA laboratory prototype was constructed based on a DSP TMS320F28335 to validate the operating principle of the proposed inverter.

【摘要机译】最近,由于输出电压中的总谐波失真低和电磁干扰小,多电平逆变器已变得对研究人员更具吸引力。本文提出了一种新颖的单级准级联H桥五电平升压逆变器(qCHB-FLBI)。提出的五电平逆变器在削减无源元件方面具有优于CHB准Z源逆变器的优势。因此,减小了所提出的逆变器的尺寸,成本和重量。此外,建议的qCHB-FLBI可以在直通状态下工作。当两个模块的输入电压不平衡时,将具有低额定电压的电容器添加到建议的拓扑中,以消除输出交流电压的失调电压。此外,一个简单的PID控制器用于控制每个模块的电容器电压。本文介绍了拟议的qCHB-FLBI的电路分析,工作原理和仿真结果。基于DSP TMS320F28335构建了一个1.2 kVA的实验室原型,以验证所提出的逆变器的工作原理。

【作者】Minh-Khai Nguyen;Tan-Tai Tran;

【作者单位】Department of Electrical Engineering, Chosun University, Gwangju, South Korea; Department of Electrical and Electronics Engineering, Ho Chi Minh City University of Technology and Education, Ho Chi Minh City, Vietnam;

【年(卷),期】2017(64),11

【年度】2017

【页码】8525-8533

【总页数】9

【原文格式】PDF

【正文语种】eng

【中图分类】;

【关键词】Inverters;Capacitors;Inductors;Voltage control;Topology;Control systems;Legged locomotion;

机译 逆变器;电容器;电感器;电压控制;拓扑;控制系统;运动;
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