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EAST磁体电源三相PWM变换器系统开路故障诊断

Open-Switch Fault Diagnosis of Three-Phase PWM Converter Systems for Magnet Power Supply on EAST

语言:

中文摘要

本文针对EAST装置中运行于整流与逆变双态的三相两电平PWM变换器,提出了一种通用的开路故障诊断方法。现有方法多局限于单一工作模式,本文方案有效解决了变换器在不同运行状态切换下的故障识别难题,提升了电力电子系统的运行可靠性。

English Abstract

The three-phase two-level pulsewidth modulation (PWM) converter operates in rectification state or active inverter state according to the corresponding experimental requirements of Experimental Advanced Superconducting Tokamak. However, the current fault diagnosis methods proposed for PWM converters usually deal with only the rectification state or inverter state. To solve this problem, this artic...
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SunView 深度解读

该研究聚焦于电力电子变换器的故障诊断技术,对阳光电源的核心产品线(如组串式/集中式光伏逆变器、PowerTitan/PowerStack储能变流器)具有重要的工程参考价值。逆变器与PCS在复杂电网环境下常面临频繁的工况切换,该文提出的双态通用诊断逻辑,有助于提升阳光电源iSolarCloud智能运维平台在故障预警与精准定位方面的能力,降低运维成本,提高设备可用性。建议研发团队借鉴其状态自适应诊断思路,优化现有产品的保护策略,增强系统在极端工况下的鲁棒性。