New Start-Up Scheme for HF Transformer Link Photovoltaic Inverter

Kulkarni, Abhijit and John, Vinod (2017) New Start-Up Scheme for HF Transformer Link Photovoltaic Inverter. In: IEEE TRANSACTIONS ON INDUSTRY APPLICATIONS, 53 (1). pp. 232-241.

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Abstract

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

Item Type:	Journal Article
Publication:	IEEE TRANSACTIONS ON INDUSTRY APPLICATIONS
Additional Information:	Copy right for this article belongs to the IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA
Department/Centre:	Division of Electrical Sciences > Electrical Engineering
Date Deposited:	03 Apr 2017 04:49
Last Modified:	03 Apr 2017 04:49
URI:	http://eprints.iisc.ac.in/id/eprint/56450

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