Rapid faults detection for controlling multi-terminal high voltage DC grids under AC grid contingenciesTools Xu, Z., Wei, Zhen and Zhang, C. (2016) Rapid faults detection for controlling multi-terminal high voltage DC grids under AC grid contingencies. Energy Procedia, 88 . pp. 476-483. ISSN 1876-6102
AbstractTo control power flow for integration of distributed energy onto urban power grids, rapid and accurate detection of the amplitude, phase-angle, and frequency offset of the grid voltage's positive and negative sequence components especially under grid fault conditions are more significant. This paper presents a new faults detection method that is capable of tracking signal deviations on the grid-voltage accurately and rapidly even in the case that bus-voltage contains high order harmonics and random noises. The experimental results verify the validity of the proposed method under various grid-fault conditions.
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