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Title: An output-power-control strategy for a three-phase PWM rectifier under unbalanced supply conditions
Authors: Yin, B.
Oruganti, R. 
Panda, S.K. 
Bhat, A.K.S.
Keywords: Instantaneous power regulation
Pulsewidthmodulation (PWM) power converters
Voltage imbalance
Issue Date: May-2008
Citation: Yin, B., Oruganti, R., Panda, S.K., Bhat, A.K.S. (2008-05). An output-power-control strategy for a three-phase PWM rectifier under unbalanced supply conditions. IEEE Transactions on Industrial Electronics 55 (5) : 2140-2151. ScholarBank@NUS Repository.
Abstract: Instantaneous power regulation is an effective way to improve the performance of a pulsewidth-modulation rectifier operating under unbalanced supply-voltage conditions. By properly setting current commands, this approach aims to achieve performance features that are normally achievable only under ideal balanced operating conditions. This paper proposes an instantaneous power-regulation strategy called output-power-control method, in which the current commands are determined so as to appropriately distribute the input power to maintain a constant dc output voltage and sinusoidal line currents. Although the power factor is not directly controlled, it is shown that the proposed scheme results in near unity vector power factor. The current commands are given by a set of simple linear equations in which the proposed control scheme can be easily implemented. Experimental results obtained with a 1-kW laboratory prototype demonstrate that the proposed scheme fulfils all the main objectives of a high-performance rectifier. © 2008 IEEE.
Source Title: IEEE Transactions on Industrial Electronics
ISSN: 02780046
DOI: 10.1109/TIE.2008.918643
Appears in Collections:Staff Publications

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