A unidirectional soft-switched isolated three level inverter for grid integration of renewable energy sources

Pal, Anirban and Basu, Kaushik (2017) A unidirectional soft-switched isolated three level inverter for grid integration of renewable energy sources. In: EEE International Conference on Signal Processing, Informatics, Communication and Energy Systems, SPICES 2017, 08-10 August 2017, Kollam, India, pp. 1-6.

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Abstract

This paper presents a single stage, unidirectional, three level, three phase high frequency link inverter topology. The proposed topology can be used for applications like grid integration of renewable energy sources such as fuel cell, solar photovoltaic where power flow is mainly unidirectional. The use of high frequency transformer reduces overall system volume and cost as well as improves power density. The switches in primary side of the proposed converter are soft-switched. As the primary side converter has multilevel structure, voltage stress on the switches are also reduced. The secondary side switches are switched only at line frequency leading to negligible switching loss. An analysis of operation of the proposed converter is discussed in details. Key simulation results are presented demonstrating the effectiveness of the proposed topology.

Item Type:	Conference Paper
Publisher:	Institute of Electrical and Electronics Engineers Inc.
Additional Information:	The Copyright of this article belongs to the Institute of Electrical and Electronics Engineers Inc.
Keywords:	high frequency link; modulation technique; soft-switching; Three level diode clamp inverter; Electric inverters; Electric load flow; Food products; Fuel cells; High frequency transformers; Natural resources; Power converters; Signal processing; Solar power generation; Topology; Diode clamp inverter; Grid Integration of Renewable Energy Sources; High frequency link; High-frequency link inverter; Modulation techniques; Multi-level structures; Solar photovoltaics; Three-level inverters; Renewable energy resources
Department/Centre:	Division of Electrical Sciences > Electrical Engineering
Date Deposited:	09 Jun 2022 05:17
Last Modified:	09 Jun 2022 05:17
URI:	https://eprints.iisc.ac.in/id/eprint/73347

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