Wind-power generation system and operation control method therefor
AssigneeMitsubishi Heavy Industries, Ltd.
InventorsShinji ARINAGA, Takatoshi MATSUSHITA, Tsuyoshi WAKASA, Masaaki SHIBATA, Akira YASUGI
Life of this patent
Estimating the term…
Abstract
An object is to improve the accuracy of power factor adjustment. Power-factor command values corresponding to individual wind turbines are determined by correcting a predetermined power-factor command value for an interconnection node using power factor correction levels set for the individual wind turbines.
Claims19
An operation control method for a wind-power generation system comprising a plurality of individual wind turbines and a central controller for providing control commands to the individual wind turbines, output powers of the individual wind turbines being supplied to a utility grid via a common interconnection node, the operation control method comprising:
- a step of calculating power factor correction levels corresponding to the individual wind turbines on a basis of reactance components present between the individual wind turbines and the interconnection node;
- a step of storing the calculated power factor correction levels in association with the individual wind turbines in a memory;
- a step of obtaining the power factor correction levels in association with the individual wind turbines from the memory;
- and
- a step of determining power-factor command values corresponding to the individual wind turbines by correcting a predetermined power-factor command value for the interconnection node using the power factor correction levels obtained from the memory.
(canceled)
A wind-power generation system having a plurality of individual wind turbines and a central controller for providing control commands to the individual wind turbines, output powers of the individual wind turbines being supplied to a utility grid via a common interconnection node, the wind-power generation system comprising:
- a memory for storing power factor correction levels in association with the individual wind turbines, the power factor correction levels being determined based on reactance components present between the individual wind turbines and the interconnection node;
- wherein power-factor command values corresponding to the individual wind turbines are determined by correcting a predetermined power-factor command value for the interconnection node using the power factor correction levels obtained from the memory.
Dependencies are inferred from the claim text.