Research Output

Investigations in the Modeling and Control of a Medium-Voltage Hybrid Inverter System That Uses a Low-Voltage/Low-Power Rated Auxiliary Current Source Inverter

  Hybrid converters consist of a main inverter processing the bulk of the power with poor waveform performance and a fast and versatile auxiliary inverter to correct the distortion. In this paper, the main converter is a medium-voltage (MV) neutral point-clamped inverter, and the auxiliary inverter is a low-voltage and low-current rated current source inverter (CSI), with series capacitor being used to minimize the CSI voltage stress. The result is a high output current quality, which is obtained with a very low switching stress in the main converter and a very small added installed power (<;4%) in the CSI. This paper expands this concept by investigating the hybridization of an MV inverter with an existing LCL filter, investigating the additional challenges related to resonances, and proposing a solution for stable operation. The experimental validation of active ripple cancellation has been provided at 3 kW.

  • Type:

    Article

  • Date:

    31 March 2016

  • Publication Status:

    Published

  • Publisher

    Institute of Electrical and Electronics Engineers (IEEE)

  • DOI:

    10.1109/jestpe.2015.2488631

  • ISSN:

    2168-6777

  • Library of Congress:

    TK Electrical engineering. Electronics Nuclear engineering

  • Dewey Decimal Classification:

    621.3 Electrical & electronic engineering

  • Funders:

    The University of Nottingham

Citation

Papadopoulos, S., Rashed, M., Klumpner, C., & Wheeler, P. (2016). Investigations in the Modeling and Control of a Medium-Voltage Hybrid Inverter System That Uses a Low-Voltage/Low-Power Rated Auxiliary Current Source Inverter. IEEE Journal of Emerging and Selected Topics in Power Electronics, 4(1), 126-140. https://doi.org/10.1109/jestpe.2015.2488631

Authors

Keywords

active filters, noise cancellation, nonlinear filters

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