Please use this identifier to cite or link to this item: https://doi.org/10.1109/IECON.2012.6389359
Title: A novel four-leg three-phase inverter control strategy to reduce the data center thermal losses: Elimination of neutral current
Authors: Dasgupta, S.
Prasanna, I.V.
Sahoo, S.K. 
Panda, S.K. 
Issue Date: 2012
Source: Dasgupta, S.,Prasanna, I.V.,Sahoo, S.K.,Panda, S.K. (2012). A novel four-leg three-phase inverter control strategy to reduce the data center thermal losses: Elimination of neutral current. IECON Proceedings (Industrial Electronics Conference) : 3358-3363. ScholarBank@NUS Repository. https://doi.org/10.1109/IECON.2012.6389359
Abstract: In this paper a novel control strategy is proposed for a three-phase-four-leg UPS-inverter for data center application. The control strategy takes care of the unbalanced three-phase loading of the data center server without the manifestation of the neutral current. Thus, the power distribution unit (PDU) transformer can be eliminated from the power architecture while feeding the total data center load from a standard three-phase-three-wire utility supply. The proposed control strategy adjusts the inverter output voltages in such a way that even in the presence of unbalanced loading of the servers, the neutral current is maintained at zero in the steady-state. The proposed methodology is thus capable of reducing the thermal losses due to PDU as well as neutral wire improving the power usage efficiency (PUE) of the date center. © 2012 IEEE.
Source Title: IECON Proceedings (Industrial Electronics Conference)
URI: http://scholarbank.nus.edu.sg/handle/10635/68964
ISBN: 9781467324212
DOI: 10.1109/IECON.2012.6389359
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