高频UPS用与不用输出变压器的技术解析及其评论（上）  

Technical Analysis and Comments on High-Frequency UPS with/without Output Transformer （1）

作　　者：刘凤君[1] 

机构地区：[1]中国航天二院,北京100059

出　　处：《UPS应用》2013年第4期25-29,共5页UPS Applications

摘　　要：文中通过高频UPS用与不用输出变压器的技术解析，介绍了输出变压器的频率特性和隔离功能，有输出变压器高频UPS的组成与节能控制、输出变压器对效率曲线形状的影响，无输出变压器阻止与抗干扰功能的实现。通过这些叙述来说明高频UPS采用与不采用输出变压器在技术上的真正原因，以纠正一些不正确说法引起的争论。采用输出变压器是节能控制技术的需要，不是传统工频UPS的遗留物；不采用输出变压器，实际上也是节能技术发展的结果，不是因为输出变压器没有隔离与抗干扰作用而被淘汰的。相反，输出变压器的频率特性具有很强的隔离与抗干扰作用，输出变压器的漏抗对负载突变也有很好的缓冲作用。By technically analyzing the high-frequency UPS with/without output transformer （OT）, this paper introduces the frequency charactersitics and isolation functions of 07, the composition and energy-saving contol of high-frequency UPS with OT, the impact of OT on the shape of the efficiecny curve, and the realization of isolation and anti-jamming functions （IAFs） without OT. Accordingly, the true technical reasons for high-frequency UPS with/without OT are presented and the wrong statements causing controversy are also corrected. Adopting OT is the need of energy-saving control technology, instead of the remnant of traditional power-frequency UPS, while not adopting it is actually the result of energy-saving tenchology development, instead of that OT has no IAFs. In contrast, there are strong IAFs in the OT frequency charactistics and OT leakage reactance has a good cushioning effect on the load mutation.

关 键 词：高频UPS 输出变压器 频率特性 隔离功能 节能控制技术 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]