Improved PWM Switching Scheme to Mitigate Power Loss and Switch Temperature of CHB Inverters

IF 1.7 3区物理与天体物理 Q3 ENGINEERING, ELECTRICAL & ELECTRONIC

IEEE Transactions on Applied Superconductivity Pub Date : 2024-10-14 DOI:10.1109/TASC.2024.3469848

Sadia Afrin;Shuvra Prokash Biswas;Sudipto Mondal;Md. Rabiul Islam;Rakibuzzaman Shah

引用次数: 0

Abstract

Pulsewidth modulation (PWM) techniques play a crucial role in determining the power quality of multilevel-inverter-based grid-tied solar photovoltaic (PV) fed systems. However, the existing PWM techniques suffer from the heat dissipation of the switches and power loss issues. In view of this concern, a new PWM technique is proposed to mitigate the junction temperature as well as the power loss of a cascaded H-bridge (CHB) inverter employed in a grid-tied solar PV system. Apart from the junction temperature of the power switch and power loss, different steady-state and dynamic responses of the CHB inverter are investigated using MATLAB/Simulink and PLECS software environments. Experimental results are also provided to support the simulation analysis.

查看原文本刊更多论文

改进 PWM 开关方案以降低 CHB 逆变器的功率损耗和开关温度

脉宽调制（PWM）技术在决定基于多电平逆变器的并网太阳能光伏（PV）馈电系统的电能质量方面发挥着至关重要的作用。然而，现有的 PWM 技术存在开关散热和功率损耗问题。有鉴于此，我们提出了一种新的 PWM 技术，以减轻并网太阳能光伏系统中采用的级联 H 桥（CHB）逆变器的结温和功率损耗。除了功率开关的结温和功率损耗外，还使用 MATLAB/Simulink 和 PLECS 软件环境研究了 CHB 逆变器的不同稳态和动态响应。实验结果也为仿真分析提供了支持。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

IEEE Transactions on Applied Superconductivity 工程技术-工程：电子与电气

CiteScore

3.50

自引率

33.30%

发文量

650

审稿时长

2.3 months

期刊介绍： IEEE Transactions on Applied Superconductivity (TAS) contains articles on the applications of superconductivity and other relevant technology. Electronic applications include analog and digital circuits employing thin films and active devices such as Josephson junctions. Large scale applications include magnets for power applications such as motors and generators, for magnetic resonance, for accelerators, and cable applications such as power transmission.