Resonance instability of photovoltaic E-bike charging stations: Control parameters analysis, modeling and experiment

Ziqian Zhang*, Cihan Gercek, Herwig Renner, Angèle Reinders, Lothar Fickert

*Corresponding author for this work

    Research output: Contribution to journalArticleAcademicpeer-review

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    This article presents an in-situ comparative analysis and power quality tests of a newly developed photovoltaic charging system for e-bikes. The various control methods of the inverter are modeled and a single-phase grid-connected inverter is tested under different conditions. Models are constituted for two current control methods; the proportional resonance and the synchronous rotating frames. In order to determine the influence of the control parameters, the system is analyzed analytically in the time domain as well as in the frequency domain by simulation. The tests indicated the resonance instability of the photovoltaic inverter. The passivity impedance-based stability criterion is applied in order to analyze the phenomenon of resonance instability. In conclusion, the phase-locked loop (PLL) bandwidth and control parameters of the current loop have a major effect on the output admittance of the inverter, which should be adjusted to make the system stable.

    Original languageEnglish
    Article number252
    JournalApplied Sciences
    Issue number2
    Early online date11 Jan 2019
    Publication statusPublished - Jan 2019


    • Grid-connected inverter
    • Photovoltaic
    • Power quality
    • Resonance instability
    • Solar charging
    • Solar mobility

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