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基于损耗因子的Boost变换器输出电容健康监测

Health Monitoring of Output Capacitor in Boost Converters Based on Dissipation Factor

语言:

中文摘要

本文提出了一种基于损耗因子测量Boost变换器输出电容健康状态的简单技术。相比以往主要通过测量等效串联电阻(ESR)或电容值来追踪健康状况的方法,该方法通过精确测量损耗因子,为电容老化监测提供了新思路,有助于提升电力电子变换器的可靠性。

English Abstract

The purpose of this letter is to present a simple technique for monitoring the health status of the output capacitor of a boost converter. The majority of previous studies have measured an electrolytic capacitor equivalent series resistance or capacitance to track its health condition. However, this letter suggests a new approach based on the accurate measurement of the dissipation factor. The eff...
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SunView 深度解读

电解电容是光伏逆变器和储能变流器(PCS)中寿命最薄弱的环节之一。该技术提出的基于损耗因子的健康监测方法,可直接应用于阳光电源的组串式逆变器及PowerTitan/PowerStack储能系统中的DC-DC环节。通过在iSolarCloud智能运维平台集成此类算法,可实现电容老化状态的在线预警,从“故障后维修”转向“预测性维护”,显著降低运维成本并提升产品全生命周期的可靠性,对提升阳光电源产品的市场竞争力具有重要参考价值。