Control Strategy for Reducing Ripple Current in DC-Link Capacitor of Single-Phase UPS

被引：1

作者：

Yamamoto, Takato ^{[1
]}

Haga, Hitoshi ^{[1
]}

机构：

[1] Nagaoka Univ Technol, 1603-1 Kamitomioka Machi, Nagaoka, Niigata 9402188, Japan

来源：

IEEJ JOURNAL OF INDUSTRY APPLICATIONS | 2023年 / 12卷 / 02期

关键词：

UPS; electrolytic capacitor; ripple current;

D O I：

10.1541/ieejjia.L22000994

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

published This letter proposes a control strategy for reducing a ripple current in DC-link capacitor of single-phase uninter- ruptible power supplies (UPS). The proposed method aims to reduce the capacitor current by reducing the difference between the input and output instantaneous power. The input current waveform should satisfy harmonic current regu- lation and be as close as possible to the load current. Therefore, an auxiliary buck chopper was added to compensate to the ripple current in DC-link capacitor. Experimental result confirm that the proposed method reduces the RMS value of the DC-link ripple current by 27.9%.

引用

页码：228 / 229

页数：2

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