New Start-up Scheme for HF Transformer Link Photovoltaic Inverter

Kulkarni, Abhijit and John, Vinod (2016) New Start-up Scheme for HF Transformer Link Photovoltaic Inverter. In: 31st Annual IEEE Applied Power Electronics Conference and Exposition (APEC), MAR 20-24, 2016, Long Beach, CA, pp. 3439-3445.

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Abstract

Safe start-up procedure is critical for reliable operation of power converters. The challenges in start-up schemes of high-frequency (HF) transformer link inverters involve pre-charge of the capacitors without significant inrush currents and over-voltages. The pre-charge is normally followed by enabling of the closed-loop control. The over-voltage or inrush current problems in conventional start-up schemes available in literature are identified in this paper. A new start-up scheme is proposed which achieves the objectives of limiting inrush current and start-up over-voltages. This method does not require any additional dedicated pre-charge circuitry. The proposed scheme is validated using simulation and experimental results which agree with the theoretical prediction.

Item Type:	Conference Proceedings
Series.:	Annual IEEE Applied Power Electronics Conference and Exposition (APEC)
Additional Information:	Copy right for this article belongs to the IEEE, 345 E 47TH ST, NEW YORK, NY 10017 USA
Department/Centre:	Division of Electrical Sciences > Electrical Engineering
Date Deposited:	04 Jan 2017 05:10
Last Modified:	04 Jan 2017 05:10
URI:	http://eprints.iisc.ac.in/id/eprint/55732

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