文章基本信息

标题：Analysis and design of multiple feedback control loops for both Inverter and Rectifier of single-phase UPS under Non-linear Load
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作者：Seyed Reza Hadian Amrei ; Seyed Morteza Alizadeh ; Amin.Yaghoubi 等
期刊名称：International Journal of Computer Science Issues
印刷版ISSN：1694-0784
电子版ISSN：1694-0814
出版年度：2012
卷号：9
期号：2
出版社：IJCSI Press
摘要：In this article, a controlling method is proposed for single-phase Uninterruptible Power Supplies. The proposed method is capable of reducing the distortion in the output voltage and also changing the output voltage into a desirable sine wave when UPS supplying non-linear and variable loads. In this method, two controlling loops are used, based on output voltage feedback (outer loop) and self current feedback (inner loop). Using the results of simulation in MATLAB/SIMULIN software, the result of the proposed method is compared to the result of the controlling method based on output voltage feedback only. The proposed controlling method (multiple feedbacks) leads to a better regulation and better responding of UPS to different types of loads, as compared to the controlling methods using simple feedback. In addition, the proposed method improves the input power factor, using the appropriate controlling strategy in the rectifier part of the UPS in which a rectifier with a BOOST convertor is used as the circuit correcting the power factor.
关键词：controlling method; single;phase; MATLAB/SIMULIN; UPS