Low Voltage, Minimum Switch Count Second-Harmonic Filter for Single-Phase Converters

Mukhopadhyay, A and John, V (2022) Low Voltage, Minimum Switch Count Second-Harmonic Filter for Single-Phase Converters. In: 2022 IEEE Energy Conversion Congress and Exposition, ECCE 2022, 9 - 13 October 2022, Detroit.

PDF ECCE _2022.pdf - Published Version Restricted to Registered users only Download (3MB) | Request a copy

Abstract

Technologies for second harmonic (2�) ripple filtering of single-phase converters have triggered significant research interest in recent times. Traditional passive filters employing bulk electrolytic capacitors affect the power density and reliability of the system. Active filters improve power density by reducing electrolytic capacitor requirements; however, their circuit complexity, component count, and control efforts sometimes outweigh the capacitance reduction benefits. Also, the minimum addition of active components is preferable from the cost, reliability, and control perspective. In view of these, a hybrid filter topology named Series Capacitor Boost Hybrid Filter (SCBHF) is proposed here, which uses the minimum possible number of switches. Series capacitor stack-based configuration reduces the voltage stress on the active unit of the proposed filter. The filter configuration, operational constraints, design, and control approach are discussed in this work. The performance of SC-HBF is verified in simulation and experiments on a 500 W converter prototype. © 2022 IEEE.

Item Type:	Conference Paper
Publication:	2022 IEEE Energy Conversion Congress and Exposition, ECCE 2022
Publisher:	Institute of Electrical and Electronics Engineers Inc.
Additional Information:	The copyright for this article belongs to the Institute of Electrical and Electronics Engineers Inc.
Keywords:	Active filters; Capacitance; Harmonic analysis; Passive filters; Power converters, Hybrid filters; Low device stress; Low voltages; Minimum switch count; Power densities; Second harmonic ripple; Second harmonics; Series capacitors; Single phase converter; Switch counts, Electrolytic capacitors
Department/Centre:	Division of Electrical Sciences > Electrical Engineering
Date Deposited:	25 Jan 2023 09:11
Last Modified:	25 Jan 2023 09:11
URI:	https://eprints.iisc.ac.in/id/eprint/79505

Actions (login required)

View Item