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Integrated Magnetics-Based Flux-Rate Controlled Single-Phase Inverter Topology

Mahapatra, RK and Umanand, L and Gopakumar, K (2022) Integrated Magnetics-Based Flux-Rate Controlled Single-Phase Inverter Topology. In: 48th Annual Conference of the IEEE Industrial Electronics Society, IECON 2022, 17 - 20 October 2022, Brussels.

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Official URL: https://doi.org/10.1109/IECON49645.2022.9969118


The high-voltage and high-power applications require isolated systems to maintain safety. Also, the existing power semiconductor devices limit the maximum operating range. This paper presented an integrated magnetics-based flux-rate controlled single-phase inverter topology to achieve the isolation and enhance the maximum operational capacity with the current power semiconductor devices. The proposed inverter topology is comprised of the main and secondary inverter and the integrated magnetic circuit. The high-power main inverter performs the fundamental frequency operation throughout the entire operating range, which is responsible for setting up the main flux in the magnetic core. The low power secondary inverter performs high-frequency PWM (pulse width modulation) operation and sets up the required flux rate in the magnetic core. The flux-rate control in the magnetic circuit makes the output voltage waveform sinusoidal across the load terminals. Proper arrangement of the load winding of the magnetic circuit takes care of the isolation and makes the load-side free from power electronics components. The graphical modeling technique bond-graph is used here to model the proposed system. The obtained model is simulated, and the experimentation is performed on a lab-built prototype to demonstrate the functioning of the proposed inverter. © 2022 IEEE.

Item Type: Conference Paper
Publication: IECON Proceedings (Industrial Electronics Conference)
Publisher: IEEE Computer Society
Additional Information: The copyright for this article belongs to IEEE Computer Society.
Keywords: Graph theory; Magnetic circuits; Magnetic cores; Pulse width modulation; Winding, Bond graph; Flux rates; High power applications; High voltage power; Integrated magnetic; Inverter topologies; Load winding; Main inverte; Secondary inverte; Single-phase inverters, Electric inverters
Department/Centre: Division of Electrical Sciences > Electronic Systems Engineering (Formerly Centre for Electronic Design & Technology)
Date Deposited: 19 Jan 2023 04:30
Last Modified: 19 Jan 2023 04:30
URI: https://eprints.iisc.ac.in/id/eprint/79206

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