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首页> 外文会议>2013 IEEE 1st International Conference on Condition Assessment Techniques in Electrical Systems >The effect of change in DC link series resistance on the AC/AC converter operation: Power converters embedded diagnostics
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The effect of change in DC link series resistance on the AC/AC converter operation: Power converters embedded diagnostics

机译：直流母线串联电阻的变化对AC / AC转换器运行的影响：功率转换器嵌入式诊断

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摘要

Nowadays health and condition monitoring of the particular elements of the industrial system is a standard requirement. This also applies to power converters which are becoming more and more critical and important parts of the automation systems. That brings an important need for the appropriate solutions for internal diagnostics methods. One of the most important elements of the voltage source converter circuit is the DC capacitor(s). In many of the proposed and available methods the health state of the DC bus capacitor is described by monitoring the equivalent series resistance. This paper presents the method for monitoring the DC link capacitor aging effects. Additionally the article examines the possibility of using the emerging changes in the frequency spectrum of the converter currents for the DC link deterioration. The results are obtained from simulations.
机译：如今，对工业系统特定元素的健康和状况监视已成为标准要求。这也适用于功率转换器，它们已成为自动化系统中越来越重要的组成部分。这就带来了对内部诊断方法的适当解决方案的重要需求。电压源转换器电路的最重要元件之一是直流电容器。在许多建议的和可用的方法中，通过监视等效串联电阻来描述DC总线电容器的健康状态。本文提出了一种监测直流环节电容器老化影响的方法。此外，本文还探讨了使用转换器电流频谱中出现的变化来抑制直流母线恶化的可能性。结果是从模拟获得的。

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