Compared with the direct parallel distributed generations (DGs), the reactive power distribution of meshparallel DGs adopted droop control is more complicated. In order to distribute the reactive power between mesh p...
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ISBN:
(纸本)9781665489577
Compared with the direct parallel distributed generations (DGs), the reactive power distribution of meshparallel DGs adopted droop control is more complicated. In order to distribute the reactive power between meshparallel DGs proportionally, the mechanism of reactive power distribution is analyzed, and the virtual impedance including line parameters is introduced in droop control. Considering the effect of virtual impedance on system stability, the small signal model of meshparallel DGs is established. Finally the value range of the virtual impedance is given based on reactive power proportional distribution, system stability and the rated range of node voltages. Validity of the proposed conclusion is proved by simulation.
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