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基于直流电流注入的多相驱动器开相/开关故障容错控制优化研究

Optimal Fault-Tolerant Control of Multiphase Drives Under Open-Phase/Open-Switch Faults Based on DC Current Injection

语言:

中文摘要

本文研究了多相驱动器在开相及开关故障下的容错控制策略。针对现有研究多集中于开相故障,本文重点探讨了仅单开关管失效而反并联二极管正常工作的开关故障场景,提出了一种基于直流电流注入的优化容错控制方法,旨在提升电力电子变换器在极端工况下的运行可靠性。

English Abstract

In recent years, fault-tolerant control of multiphase drives against open-phase faults has been an interesting research topic. However, in contrast, few research efforts have been devoted to fault-tolerant control against open-switch faults in which only one controllable power semiconductor device in a converter leg is open, but its antiparallel diode operates normally. In this article, a fault-to...
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SunView 深度解读

该研究提出的容错控制算法对提升阳光电源核心产品(如组串式逆变器、PowerTitan储能变流器)的可靠性具有重要参考价值。在大型光伏电站或储能电站中,功率模块的单管失效往往会导致整机停机,影响系统可用性。通过引入直流电流注入等容错控制技术,可以在硬件冗余有限的情况下,通过软件算法实现故障后的降额运行或持续供电,从而降低运维成本,提升iSolarCloud平台的故障预警与自愈能力。建议研发团队关注该算法在多电平拓扑中的移植可行性。