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一种用于两级变换器的高可靠性低成本容错LLC变换器

A Fault-Tolerant LLC Converter With High Reliability and Low Cost for Two-Stage Converters

作者 Weikang Wang · Yang Liu · Peng Zhang · Yining Yuan · Jin Zhao · Poh Chiang Loh
期刊 IEEE Transactions on Power Electronics
出版日期 2023年8月
技术分类 拓扑与电路
技术标签 LLC谐振 DC-DC变换器 可靠性分析 故障诊断
相关度评分 ★★★★ 4.0 / 5.0
关键词 LLC变换器 容错 DC-DC变换器 可靠性 电力电子 隔离级 电动汽车
语言:

中文摘要

随着电动汽车普及,DC-DC变换器需求激增。LLC变换器作为两级变换器的隔离级应用广泛,但在可靠性需求与空间限制之间存在矛盾。本文提出一种高可靠性、低成本的容错LLC变换器拓扑,旨在解决故障容忍问题,提升系统整体运行稳定性。

English Abstract

The popularity of electric vehicles is getting higher, and a large number of dc–dc converters are deployed. LLC converters have witnessed a rapid deployment due to their remarkable merits, often employed as the isolation stage in two-stage converters. However, the contradiction between the increasing demand for reliability and the limited space is becoming prominent. Therefore, ensuring fault tole...
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SunView 深度解读

该研究对阳光电源的户用光伏逆变器及电动汽车充电桩业务具有重要参考价值。LLC拓扑是实现高效率隔离变换的核心,引入容错设计能显著提升产品在复杂工况下的可靠性,降低售后运维成本。建议研发团队关注该容错架构在阳光电源充电桩模块及户用储能系统中的应用,通过优化控制策略实现故障下的降额运行,从而提升iSolarCloud智能运维平台下的系统可用率,增强产品在高端市场的竞争力。