微电网能源转换中使用的固体氧化物燃料电池驱动逆变器中的萌芽缓冲器质量劣化研究

IF 4.3 3区 材料科学 Q1 ENGINEERING, ELECTRICAL & ELECTRONIC ACS Applied Electronic Materials Pub Date : 2024-07-05 DOI:10.1002/ente.202400568
Sankha Subhra Ghosh, Surajit Chattopadhyay, Sujata Banerjee, Arabinda Das
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引用次数: 0

摘要

当今最大的问题之一是以清洁、高效和环保的方式生产能源。集成并网系统中最关键的部分是电网逆变器。微电网(MG)逆变器中的缓冲器质量恶化是一个非常关键的问题。缓冲器是电力电子电路中的重要元件。缓冲器可提高效率和可靠性,同时还能增强电路性能,提高开关频率。本文介绍了在与 MG 应用中使用的固体氧化物燃料电池相连的三相逆变器 (3PhI) 中的新型缓冲器电阻故障 (NSF) 检测技术。为进行故障检测,对逆变器输出电流信号进行了快速傅立叶变换。研究了逆变器中不同百分比的缓冲电阻故障对逆变器电流零频分量、基波电流分量、总谐波失真系数和次谐波电流分量的影响。根据最佳拟合参数,尝试成功检测 3PhI NSF。提出了一种 NSF 检测算法。此外,还介绍了这项研究的独特贡献和比较分析。
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Study of Budding Snubber Quality Deterioration in Solid Oxide Fuel Cell‐Fed Inverter Used in Microgrid Energy Conversion
One of the biggest issues today is generating energy in a way that is clean, effective, and environmentally benign. The most crucial part of an integrated grid‐connected system is the grid inverter. Budding snubber quality deterioration in the microgrid (MG) inverters is a very critical issue. Snubbers are essential components in power electronic circuits. Snubbers increase efficiency and reliability while also enhancing circuit performance, enabling greater switching frequencies. Herein, a nascent snubber resistance fault (NSF) detection technique in a three‐phase inverter (3PhI) connected with the solid oxide fuel cell used in MG applications is presented. For fault detection, an investigation is conducted using the fast Fourier transform to the inverter output current signal. The investigation is done on the effect of different percentages of snubber resistance fault in the inverter on the zero‐frequency component, fundamental current component, total harmonic distortion factor, and the subharmonic current components of the inverter current. Depending on the best‐fit parameters, an attempt is made to successfully detect the 3PhI NSF. An algorithm is proposed for NSF detection. Furthermore, this investigation's distinctive contribution and comparative analysis are presented.
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4.30%
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567
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