Patent ID: 11876380
Assignee: MITSUBISHI HEAVY INDUSTRIES ENGINE & TURBOCHARGER, LTD.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  G  Y | IPC G  H

Claim 8:
9. A control method of a hybrid power generation system which includes:
a renewable energy power generation device capable of generating power by using renewable energy;
a rotary power generation device connected to an alternating-current power system in common with the renewable energy power generation device, the rotary power generation device being capable of generating power such that an output fluctuation of the renewable energy power generation device is reduced; and
a control device for controlling the rotary power generation device such that a rotation speed of the rotary power generation device reaches a target rotation speed, the control method comprising:
a fluctuation determination step of determining whether a fluctuation amount of the renewable energy supplied to the renewable energy power generation device or an output of the renewable energy power generation device exceeds a predetermined value; and
a control step of controlling the rotary power generation device such that the rotation speed of the rotary power generation device reaches the target rotation speed,
wherein, if the fluctuation determination part determines that the fluctuation amount of the renewable energy supplied to the renewable energy power generation device or the output of the renewable energy power generation device exceeds the predetermined value, in the control step, the rotary power generation device is controlled based on a control parameter which is obtained by adding, as a feedforward component, to the control parameter on a feedback control loop of the control device, a correction value calculated based on the fluctuation amount.