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浙江大学学报(工学版)
J4  2010, Vol. 44 Issue (3): 521-527    DOI: 10.3785/j.issn.1008-973X.2010.03.020
电气工程     
柔性变流器及其应用
顾亦磊, 陈威, 吕征宇
浙江大学 电气工程学院, 浙江 杭州310027
Flexible converter and its applications
GU Yilei, CHEN Wei, LV Zhengyu
College of Electrical Engineering, Zhejiang University, Hangzhou 310027, China
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摘要：

基于雨幕墙压力传递的频域求解方法,推导当气屏有渗漏时雨幕墙压力传递频域特征参数的表达式,并结合气屏渗漏模型分析气屏渗漏对雨幕墙压力平衡的影响.计算结果表明,气屏从无渗漏到有渗漏,雨幕两侧压差的均值及低频脉动响应由平衡变为不平衡,但是脉动共振响应变小.气屏孔隙流量系数及气屏孔隙有效深度对压力平衡的影响很小,而气屏渗漏流量及气屏孔隙流动指数的影响较大.随着渗漏流量或流动指数增大,压差均值与低频脉动响应增大,而脉动共振响应减小.利用原非线性控制方程组的时域求解结果,验证了通过统计线性化得到的频域求解方法在此类雨幕墙压力传递求解上的适用性.
Abstract:

 A novel conception of flexible converter was proposed to satisfy the requirement of wide adaptability for standard power modules in the scheme of power electronics system integration. And then a practical case of flexible converter with two selectable topologies based on inductorinductorcapacitor (LLC) resonant converter with frequency modulation was also proposed. This converter can operate under two various topologies to satisfy various applications only by altering the connecting mode of the output pins. This converter is suitable for two applications of V/I output and 2 V/(I/2) output, and the voltage stresses and current stresses of all main components are peer to peer under these two applications. The compatible issue of small signal was presented and solved as well. Finally, an 1100W operating power supply used in electric power system with selectable output of 110 V and 220 V was built to verify the above analysis and the highest efficiency was above 96%. Compared with the conventional converter, the flexible converter shows wide range adaptability.
出版日期: 2012-03-20
:  TM 46  
基金资助:

 国家自然科学基金资助项目(50677063)；台达电力电子科教发展基金资助项目(2006—2007)
通讯作者: 吕征宇，男，教授，博导.     E-mail: eeluzy@cee.zju.edu.cn
作者简介: 顾亦磊(1978)，男，浙江象山人，博士生，从事电力电子系统集成和UPS技术的研究 Email:Guyilei9602@sina.com
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引用本文:

顾亦磊, 陈威, 吕征宇. 柔性变流器及其应用[J]. J4, 2010, 44(3): 521-527.

GU Yi-Lei, CHEN Wei, LV Zheng-Yu. Flexible converter and its applications. J4, 2010, 44(3): 521-527.

链接本文:

http://www.zjujournals.com/eng/CN/10.3785/j.issn.1008-973X.2010.03.020    或    http://www.zjujournals.com/eng/CN/Y2010/V44/I3/521

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