Review on DC link capacitor issues in variable frequency drives

2017 International Conference on Innovations in Electrical, Electronics, Instrumentation and Media Technology (ICEEIMT) Pub Date : 2017-02-01 DOI:10.1109/ICIEEIMT.2017.8116839

V. Kavitha, K. Subramanian

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引用次数: 3

Abstract

The dc link capacitor is an important energy storage device and also filter out the ripple voltage and current. The main dc link capacitor issues are the size, heating of the capacitor, voltage stability, increases the temperature in the device. This component also maintains the high reliability and long life. While storing the large amount of charge at high voltage, the dc link capacitor is a buffer for power transfer between the inverter and dc power device maintain the dc link voltage within the desired range in the presence of ripple current. Evaluations of dc link capacitor with three types of utility interface options are analyzed here. From this three types of utility options is having more drawbacks and some problems is there. To overcome this problem a new capacitor heating factor and ESR (external series resistance model is introduced. Another effects on the dc link capacitor is effects of DC link capacitor sizes in a three phase diode rectifier on input current harmonics at a system level.

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变频驱动中直流链路电容问题综述

直流链路电容是一种重要的储能器件，同时也能滤除纹波电压和电流。直流环节电容器的主要问题是电容器的尺寸、发热性、电压稳定性、器件内温度升高等。该组件还保持了高可靠性和长寿命。在高压下存储大量电荷的同时，直流链路电容是逆变器和直流电源器件之间的功率传输缓冲器，在纹波电流存在的情况下，保持直流链路电压在期望的范围内。本文分析了直流链路电容在三种实用接口选择下的性能评价。从这三种类型的实用程序选项是有更多的缺点和一些问题存在。为了克服这一问题，提出了一种新的电容加热因子和外部串联电阻模型。对直流链路电容的另一个影响是三相二极管整流器中直流链路电容尺寸对系统级输入电流谐波的影响。

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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来源期刊

2017 International Conference on Innovations in Electrical, Electronics, Instrumentation and Media Technology (ICEEIMT)

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