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    National Tsing Hua University Institutional Repository > 電機資訊學院 > 電機工程學系 > 期刊論文 >  Switch-mode rectifier with digital robust ripple compensation and current waveform controls

    Please use this identifier to cite or link to this item: http://nthur.lib.nthu.edu.tw/dspace/handle/987654321/12434

    Title: Switch-mode rectifier with digital robust ripple compensation and current waveform controls
    Authors: Chen HC
    Li SH
    Liaw CM
    教師: 廖聰明
    Date: 2004
    Publisher: Institute of Electrical and Electronics Engineers Inc.
    Relation: Power Electronics, IEEE Transactions on
    Volume 19, Issue 2, March 2004 Page(s):560 - 566
    Keywords: current control
    power factor correction
    ripple compensation
    robust control
    SMR modeling
    Abstract: For a switch-mode rectifier (SMR), the inherent existence of a double frequency output voltage ripple renders the contradiction between the input current waveform and voltage regulation control performances. In this paper, the approaches for the ripple compensation and the improvement of input current waveform control of SMR are presented. First, a robust ripple compensation controller is developed, such that the effect of double frequency ripple contaminated in the output voltage feedback signal can be cancelled as far as possible. It follows that the current command yielded by the voltage control loop will be nearly ripple-free. Then a current control scheme, which consists of a feedback controller, a command feedforward controller and a robust disturbance feedforward controller, is proposed to let the SMR possess improved robust input current(-) waveform control performance. Theoretical basis, design and implementation of the proposed controllers are described in detail. All the designed controllers are carried out digitally using DSP TMS320C240. The measured results indicate that under well-regulated dc output voltage, improved input current waveforms with high power quality are obtained by the proposed control approach, and the results are rather insensitive to input voltage and load variations.
    URI: http://nthur.lib.nthu.edu.tw/handle/987654321/12434
    Appears in Collections:[電機工程學系] 期刊論文

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