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Reduced Rating Active Phase Converter for Three-Phase Induction Generator Based Single Phase Grid-Tied Systems

Adapa, AK and John, V (2021) Reduced Rating Active Phase Converter for Three-Phase Induction Generator Based Single Phase Grid-Tied Systems. In: IEEE Transactions on Industry Applications, 57 (1). pp. 694-701.

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Official URL: https://doi.org/10.1109/TIA.2020.3028294


The distribution systems and microgrids in remote, and rural areas are often of a single-phase nature due to economic viability. Fixed frequency three-phase induction generators (IGs) are popular in such applications due to their competitive performance features, and utility. This article proposes a control approach for injecting power to a single-phase grid from an active phase converter (APC) assisted three-phase IG. The presented approach ensures a balanced operation of the IG even with variable generation. This work proposes a method of using an ac auxiliary capacitor that reduces the APC pole currents and improves the converter efficiency. Closed-form expression of the grid current and converter pole currents for a given operating point of the IG are derived. Based on the analysis, and the converter current expressions, a procedure to find the optimal auxiliary capacitance for a given operating point of the IG is presented. Experimental results are provided to validate the theoretical framework, and APC control approach. The experimental results demonstrate the injection of 2.4 kW real power into the single-phase grid at near unity factor and validate the proposed control of the APC-IG system. © 1972-2012 IEEE.

Item Type: Journal Article
Publication: IEEE Transactions on Industry Applications
Publisher: Institute of Electrical and Electronics Engineers Inc.
Additional Information: The copyright for this article belongs to the Authors.
Keywords: AC generators; Asynchronous generators; Electric power transmission networks; Microgrids; Poles; Power converters, Closed-form expression; Competitive performance; Converter efficiency; Distribution systems; Economic viability; Theoretical framework; Three-phase induction generators; Variable generations, Electric power system control
Department/Centre: Division of Electrical Sciences > Electrical Engineering
Date Deposited: 05 Jun 2023 09:01
Last Modified: 05 Jun 2023 09:01
URI: https://eprints.iisc.ac.in/id/eprint/81759

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