Abstract
This paper describes a smart fault tackling strategy based on power flow transfer entropy (PFTE) for AC three-phase-to-ground (TPG) faults in the multi-terminal HVDC (MTDC) wind power integration system. The fault characteristics and transient energy transfer of different positions and properties are analyzed. Then, a double integral discrimination method based on PFTE is proposed to further distinguish the fault property. Considering the power flow balance, an adaptive coordination strategy of wind farms and energy dissipation resistors is proposed to deal with different AC faults. Finally, a smart fault-tackling strategy based on PFTE for AC three-phase-to-ground (TPG) faults in the MTDC wind power integration system is proposed. Under the proposed smart fault-tackling strategy, the MTDC wind power integration system achieves uninterrupted operation during any AC TPG fault at the receiving end. The experiment results confirm the applicability of the proposed fault-tackling strategy.
Highlights
(PFTE) for AC three-phase-to-ground (TPG) faults in the multi-terminal high voltage direct current (HVDC) (MTDC) wind power integration system
Combined with the fault location strategy proposed in the literature [20], a smart fault-tackling strategy based on power flow transfer entropy (PFTE) for AC three-phase-to-ground (TPG) faults in the multi-terminal HVDC (MTDC) wind power integration system is proposed in this paper
Each permanent magnet synchronous generators (PMSG) is connected to a full-power converter composed of generator side VSC (GS VSC) and integrated side VSC (IS VSC)
Summary
Wind farms and use permanent magnet synchronous generators with an integrated wind rating of 1500 and 3000 mw. Each PMSG is connected to a full-power integrated wind rating of 1500 and 3000 mw. Each PMSG is connected to a full-power converter composed of generator side VSC (GS VSC) and integrated side VSC (IS VSC). Converter composed of generator side VSC (GS VSC) and integrated side VSC (IS VSC). 1 and R2 consisting of multiple resistors in absorbthe theexcess excess energy, energy, dissipation. R2 consisting of multiple resistors in parallel are installed on the AC side of WFMMC2, shown. Control systems of the MTDC wind power integration system. Configurationand and control systems of the pology of the wind power integration system; Control system of the wind farm; Control system (a) Topology of the MTDC wind power integration system; (b) Control system of the wind farm; of MMCs (c) Control system of MMCs
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