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多应力下高频变压器绝缘的相互作用分析与寿命建模

Interactions Analysis and Life Modeling for High-Frequency Transformers Insulation Under Multistress

语言:

中文摘要

高频变压器(HFT)是固态变压器(SST)的核心组件。准确预测其剩余寿命对保障系统可靠性至关重要。本文研究了HFT绝缘在PWM高频电压与高温多重应力下的老化机理,旨在解决复杂工况下绝缘失效预测的难题,为电力电子设备的长期稳定运行提供理论支撑。

English Abstract

High-frequency transformers (HFTs) are key devices in solid-state transformers (SSTs). Accurate prediction of the remaining life of the HFT is essential to ensure the reliability of the SST. The insulation of the HFT withstands multistress of high-frequency pulsewidth modulation (PWM) voltage, and high temperature. These severe conditions may lead to its accelerated aging and failure. However, the...
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SunView 深度解读

高频变压器是阳光电源储能系统(如PowerTitan、PowerStack系列)及组串式逆变器中DC-DC变换环节的关键磁性元件。随着功率密度提升,高频PWM电压与热应力的耦合作用成为影响产品寿命的瓶颈。本文提出的多应力寿命建模方法,可指导阳光电源研发团队优化磁性元件的绝缘设计与选型,提升iSolarCloud智能运维平台中关于设备健康状态(SOH)的预测精度,从而降低运维成本,提升储能与光伏系统在极端环境下的长期可靠性。