Efficiency Improvement of Grid-Tied Inverters at Low Input Power Using Pulse-Skipping Control Strategy

    Authors

    H. B. Hu; W. Al-Hoor; N. H. Kutkut; I. Batarseh;Z. J. Shen

    Comments

    Authors: contact us about adding a copy of your work at STARS@ucf.edu

    Abbreviated Journal Title

    IEEE Trans. Power Electron.

    Keywords

    Efficiency; inverter; pulse skipping; renewable sources; Engineering, Electrical & Electronic

    Abstract

    A pulse-skipping control strategy is proposed to improve efficiency of grid-tied inverters at light loads. To maximize the efficiency of pulse-skipping operation mode, three key parameters are identified and optimized based on a loss model, which is developed to find the maximal efficiency points using a 3-D search technique. A 200-W prototype inverter was setup to verify the proposed control strategy. The experimental results show that the proposed pulse-skipping control strategy greatly improves the inverter's efficiency at light loads and match the simulation results fairly well, thus, validating the proposed optimization method for pulse-skipping operation.

    Journal Title

    Ieee Transactions on Power Electronics

    Volume

    25

    Issue/Number

    12

    Publication Date

    1-1-2010

    Document Type

    Article

    Language

    English

    First Page

    3129

    Last Page

    3138

    WOS Identifier

    WOS:000208284400002

    ISSN

    0885-8993

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