On Investigating the Effect of DC Biased Ripple Voltages over the Insulation of Bus Capacitor of Power Inverters: Possibility and Limitations

Sargazi R, Werle P, Akbari A, Apelsmeier A (2024)

Publication Type: Journal article

Publication year: 2024

Journal

IEEE Transactions on Dielectrics and Electrical Insulation Institute of Electrical and Electronics Engineers (IEEE)

Pages Range: 1-1

DOI: 10.1109/TDEI.2024.3350548

Abstract

With growing advances in semiconductor technologies and the introduction of new topologies in power networks, the implementation of power converters has dramatically increased. Such variations may impose additional electrical stresses and lead to failures in insulation systems. In this regard, understanding the behavior of insulation is of paramount importance. Conventionally, spectroscopy of insulations is performed under sinusoidal voltage waveforms, while there are certain conditions where the insulation is subjected to a non-sinusoidal voltage waveform with a possible DC bias. A good example of this situation could be the bus capacitor of power converters, where the capacitor on the DC voltage side provides a low-impedance loop for current ripple originating from the converter topology or load behavior. In this paper, the complex permittivity of the insulation was extracted under DC-biased sinusoidal and non-sinusoidal voltage waveforms. The challenges associated with such measurements have been addressed, and finally, the results over a typical sample are presented and discussed.

Involved external institutions

Khajeh Nasir Toosi University of Technology (KNTU) / دانشگاه صنعتی خواجه نصيرالدين طوسی‎‎ IR Iran, Islamic Republic of (IR) BorgWarner (Deutschland) DE Germany (DE) Gottfried Wilhelm Leibniz Universität Hannover DE Germany (DE)

How to cite

APA:

Sargazi, R., Werle, P., Akbari, A., & Apelsmeier, A. (2024). On Investigating the Effect of DC Biased Ripple Voltages over the Insulation of Bus Capacitor of Power Inverters: Possibility and Limitations. IEEE Transactions on Dielectrics and Electrical Insulation, 1-1. https://dx.doi.org/10.1109/TDEI.2024.3350548

MLA:

Sargazi, Reza, et al. "On Investigating the Effect of DC Biased Ripple Voltages over the Insulation of Bus Capacitor of Power Inverters: Possibility and Limitations." IEEE Transactions on Dielectrics and Electrical Insulation (2024): 1-1.

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