Audio Noise-free UPS with Zero-Voltage-Switching Back-to-Back Converter

被引：0

作者：

Shi, Keyan ^{[1
]}

Zhao, An ^{[1
]}

Deng, Jinyi ^{[1
]}

Xu, Dehong ^{[1
]}

机构：

[1] Zhejiang Univ, Coll Elect Engn, Hangzhou, Zhejiang, Peoples R China

来源：

2018 IEEE INTERNATIONAL POWER ELECTRONICS AND APPLICATION CONFERENCE AND EXPOSITION (PEAC) | 2018年

基金：

中国国家自然科学基金;

关键词：

UPS; Zero-Voltage-Switching; BTB converter; SPWM; INVERTER;

D O I：

暂无

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：

An audio noise-free Uninterruptible Power Supply (UPS) with Zero-Voltage-Switching (ZVS) back-to-back (BTB) converter is proposed. Firstly its ZVS sinusoidal pulse width modulation (SPWM) scheme is introduced. Using the proposed ZVS-SPWM scheme, all the switches in both the rectifier side and inverter side as well as the auxiliary switch can realize ZVS turn-on with only one commonly shared auxiliary circuit. Besides, the auxiliary switch only needs to operate once in each switching period, which can reduce the extra loss caused by the auxiliary circuit. The ZVS conditions with respect to both balanced and unbalanced load situations are given. A resonant parameter design guideline and a low stray inductance bus bar design is introduced. Finally the proposed UPS system with ZVS BTB converter is verified on a 50kVA experimental prototype.

引用

页码：589 / 594

页数：6

共 10 条

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