Power Controllability of a Three-Phase Converter With an Unbalanced AC Source
By Ke Ma, Wenjie Chen, Marco Liserre, Frede Blaabjerg. IEEE transactions on power electronics, 2013
208 citations recorded by the source corpus.
Three-phase dc-ac power converters suffer from power oscillation and overcurrent problems in case of the unbalanced ac source voltage that can be caused by grid/generator faults. Existing solutions to handle these problems are properly selecting and controlling the positive- and negative-sequence currents. In this paper, a new series of control strategies which utilize the zero-sequence components are proposed to enhance the power control ability under this adverse condition. It is concluded that by introducing proper zero-sequence current controls and corresponding circuit configurations, the power converter can enable more flexible control targets, achieving better performances in the delivered power and the load current when suffering from the unbalanced ac voltage.
Subfields: Electrical and Electronic Engineering
View Paper: https://www.semanticscholar.org/paper/5495d563d9620a1fc48b63ab91dab4adf16fa081
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Citations in the corpus
- A Review on Grid-Connected Converter Control for Short-Circuit Power Provision Under Grid Unbalanced Faults (2018, background): “In order to achieve oscillation-free active power and non-zero-average-value reactive power simultaneously, reactive current reference (13) is modified as [33], [38]–[40]:”