两种中小功率AC/DC变换器的对比研究  

Comparative Research on Two Kinds of AC/DC Converter with Medium and Small Power

作　　者：徐伟[1] 张友军[1] 陈可[1] 杨成明[1] 

机构地区：[1]苏州大学,机电工程学院,江苏苏州215000

出　　处：《自动化技术与应用》2017年第1期91-94,共4页Techniques of Automation and Applications

基　　金：国家自然科学基金(编号51477107);中国博士后基金(编号2015M571805);江苏省博士后基金(编号1402107C);江苏省光谱成像与智能感知重点实验室开放基金(编号3092014012200410);江苏省高等学校大学生创新创业训练计划项目(编号5731506915)

摘　　要：在全输入电压范围内的中小功率应用场合,相对于传统结构AC/DC变换器,两级式结构AC/DC变换器具有较为明显的综合优势。针对国内输入电压范围,研制了两种结构中小功率AC/DC变换器,进行对比研究。实验与对比分析结果表明两级式结构AC/DC变换器既能够有效地提高功率因数,使变换器很好地满足用电设备谐波限制标准要求,又能够优化后级DC/DC变换器的设计;而传统结构AC/DC变换器具有一定的成本优势,且变换效率略高于前者,但远不能满足用电设备谐波限制标准,只适用于低端应用场合。Compared with the traditional structure AC/DC converter, the two-stage structure AC/DC converter has some obviously advantages in the medium and small power applications with an universal input voltage. Aiming at domestic input voltage, two kinds of AC/DC converters with medium and small power are studied and compared in this paper. Experiments and comparative results show that the two-stage structure AC/DC converter not only can effectively improve the power factor to meet the harmonic limit of the power equipment, but also can optimize the design of the post-stage DC/DC converter. However, the traditional structure AC/DC converter has some advantages in cost and transformation efficiency, but it can＇t meet the harmonic limit standard of the power equipment so that it only applies to the low-end applications.

关 键 词：功率因数 输入电压范围 中小功率 AC/DC变换器 

分 类 号：TM464[电气工程—电器]