当前位置: X-MOL 学术IEEE Open J. Ind. Appl. Electron. Soc. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Multi-Winding Transformer for 18-Pulse AC–DC Converter Fed 7-Level CHB-Inverter With Fundamental Switching Based VCIMD
IEEE Open Journal of the Industrial Electronics Society Pub Date : 2020-01-10 , DOI: 10.1109/ojies.2020.2965802
Bhim Singh , Piyush Kant

In this article, a new structure is used for induction motor drive (IMD). A Δ-polygon configuration based multi-winding transformer is designed in it to get an eighteen pulse AC-DC converter, which fulfill the DC-supply requirement of a 7-level cascaded H-bridge (CHB) inverter. This 7-level CHB-inverter is utilized at the drive end, to drive an induction motor (IM) and it requires less semiconductors switches and DC-supplies than the existing 7-level CHB-inverter. Therefore, a modified multi-winding transformer is designed to fulfil the need of a 7-level CHB-inverter, which also makes the input current closer to sinusoidal and reduces its THD to an acceptable value. A vector control is used to control an IM, which has good performance than v/f control. A new fundamental frequency switching technique (area equalization modulation strategy) is used in this work, to operate a 7-level CHB-inverter at fundamental frequency switching, which reduces the switching losses and increases efficiency of the system. The comparative study is also given to show the effectiveness of the system. Performance of the system is analyzed in MATLAB/Simulink under various operating conditions of IM. The simulated performances are validated from the experimental results captured from the developed laboratory prototype.

中文翻译:

多绕组变压器,用于带基本开关的VCIMD的18脉冲AC-DC转换器馈电的7级CHB逆变器

在本文中,一种新的结构用于感应电动机驱动(IMD)。在其中设计了一个基于Δ多边形配置的多绕组变压器,以获得一个18脉冲AC-DC转换器,该转换器满足7级级联H桥(CHB)逆变器的DC电源要求。该7级CHB逆变器在驱动端用于驱动感应电动机(IM),与现有的7级CHB逆变器相比,它需要更少的半导体开关和DC电源。因此,设计了一种改进的多绕组变压器来满足7级CHB逆变器的需求,这也使输入电流更接近正弦波,并将其THD降低至可接受的值。矢量控件用于控制IM,其性能优于v / f控件。在这项工作中使用了一种新的基本频率切换技术(区域均衡调制策略),以在基本频率切换时操作7级CHB逆变器,从而减少了切换损耗并提高了系统效率。对比研究也显示了该系统的有效性。在IM的各种操作条件下,使用MATLAB / Simulink分析系统的性能。从开发的实验室原型获得的实验结果验证了模拟性能。在IM的各种操作条件下,使用MATLAB / Simulink分析系统的性能。从开发的实验室原型获得的实验结果验证了仿真性能。在IM的各种操作条件下,使用MATLAB / Simulink分析系统的性能。从开发的实验室原型获得的实验结果验证了模拟性能。
更新日期:2020-01-10
down
wechat
bug