Waveform control method for mitigating harmonics of inverter systems with nonlinear load

Haoran Wang, Guorong Zhu, Xiaobin Fu, Siyuan Ma, Huai Wang

    Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

    6 Scopus citations

    Abstract

    DC power systems connecting to single-phase DC/AC inverters with nonlinear loads will have their DC sources being injected with AC ripple currents containing a low-frequency component at twice the output voltage frequency of the inverter and also other current harmonics. Such a current may create instability in the DC power system, lower its efficiency, and shorten the lifetime of the DC source. This paper presents a general waveform control method that can mitigate the injection of the low-frequency ripple current by the single-phase DC/AC inverter into the DC source. It also discusses the inhibiting ability of the waveform control method on other coexisting harmonics, while the DC source delivers AC power to a nonlinear load. With the application of the waveform control, the average DC output power is supplied by the DC source, while the other harmonics pulsation power can be confined to the AC side (between the capacitors and the AC load). Theoretical analyses and experiment results are provided to explain the operation and the inhibiting ability, and to showcase the performance of the approach in tackling the harmonics. Results validate that the proposed solution can achieve significant mitigation of harmonic component at DC side with nonlinear load as well as a high quality output voltage without the need for extra large capacitive energy storage element implementation.

    Original languageBritish English
    Title of host publicationIECON 2015 - 41st Annual Conference of the IEEE Industrial Electronics Society
    PublisherInstitute of Electrical and Electronics Engineers Inc.
    Pages2806-2811
    Number of pages6
    ISBN (Electronic)9781479917624
    DOIs
    StatePublished - 2015
    Event41st Annual Conference of the IEEE Industrial Electronics Society, IECON 2015 - Yokohama, Japan
    Duration: 9 Nov 201512 Nov 2015

    Publication series

    NameIECON 2015 - 41st Annual Conference of the IEEE Industrial Electronics Society

    Conference

    Conference41st Annual Conference of the IEEE Industrial Electronics Society, IECON 2015
    Country/TerritoryJapan
    CityYokohama
    Period9/11/1512/11/15

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