基于对具有交流和直流电感器的六脉冲二极管整流器的分析的无电流传感器直流链路电容器状态监测器

IF 4.2 2区工程技术 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC

IEEE Transactions on Industry Applications Pub Date : 2024-08-15 DOI:10.1109/TIA.2024.3443784

Kazunori Hasegawa;Yuto Hirose

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引用次数: 0

摘要

状态监测在提高电力电子变流器（包括其直流链路电容器）的可靠性方面发挥着重要作用，因为它有助于预测变流器故障。本文对用于三相 PWM 逆变器前端的六脉冲二极管整流器进行了分析，旨在对直流链路电容器进行无电流传感器状态监测。该分析揭示了从具有交流线路和直流电感器的前端六脉冲二极管整流器流出的纹波电流，从而可以在不使用电流传感器的情况下对电容器的电容和等效串联电阻 (ESR) 进行状态监测。理论分析表明，电容器电流由三相交流源电压、交流线路电感器、直流电感和逆变器输出功率计算得出。从 200 V 实验室系统获得的实验结果证实，在不使用任何电流传感器的情况下，都能观察到 ESR 和电容的变化。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Current-Sensor-Less Condition Monitoring of a DC-Link Capacitor Based on Analysis of a Six-Pulse Diode Rectifier Having AC and DC Inductors

Condition monitoring plays an important role in improving reliability of power electronic converters including their dc-link capacitors because it contributes to predicting converter failures. This paper presents an analysis of a six-pulse diode rectifier used in the front-end of a three-phase PWM inverter intended for current-sensor-less condition monitoring of a dc-link capacitor. The analysis reveals the ripple current flowing out of a front-end six-pulse diode rectifier having ac line and dc inductors, which allows condition monitoring of both the capacitance and equivalent-series resistance (ESR) of the capacitor without using current sensors. Theoretical analysis reveals that the capacitor current is calculated by the three-phase ac source voltage, ac line inductor, dc inductor, and output power of the inverter. Experimental results obtained from a 200-V laboratory system confirmed that both the ESR and capacitance changes were observed without any current sensors.

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来源期刊

IEEE Transactions on Industry Applications 工程技术-工程：电子与电气

CiteScore

9.90

自引率

9.10%

发文量

747

审稿时长

3.3 months

期刊介绍： The scope of the IEEE Transactions on Industry Applications includes all scope items of the IEEE Industry Applications Society, that is, the advancement of the theory and practice of electrical and electronic engineering in the development, design, manufacture, and application of electrical systems, apparatus, devices, and controls to the processes and equipment of industry and commerce; the promotion of safe, reliable, and economic installations; industry leadership in energy conservation and environmental, health, and safety issues; the creation of voluntary engineering standards and recommended practices; and the professional development of its membership.