Patent ID: 8334606
Filing Date: 2012-12-18
Classification: F03D,F05B,H02J,Y02E

Abstract:
1. A wind power generation system including a group of wind turbine generators including more than one wind turbine generator, a power storage system including more than one power storage device, a superior controller configured to control the group of wind turbine generators and the power storage system, and a generation power detector to detect a generation power of the group of wind turbine generators, wherein the superior controller comprising: a generation power recording memory to record a sum of a generation power of the group of wind turbine generators and a charge and discharge power of the power storage system, a charge and discharge power command computing device for computing a charge and discharge power command for the power storage system in a second period by making use of information of the output power in a first period computed in the output power computing unit and information of a detection value at a present time from the generation power recording memory, when assuming a predetermined period from a past time to the present time as the first period and another predetermined period from the present time to a future time as the second period, a charge and discharge power control device for controlling the charge and discharge power according to the charge and discharge power command by the power storage system, a maximum value and minimum value computing unit for determining the maximum value and the minimum value of the output power in the first period, and an output range computing unit for determining an output range of the output power in the second period from the maximum value and the minimum value, wherein the charge and discharge power command computing unit is further configured to compute the charge and discharge power command for the power storage system from a power deviated from the output range, when the generation power of the group of wind turbine generators deviates from the output range in the second period.