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US 2021/0344203 A1Published application
Hybrid power generation system and control method of hybrid power generation system
AssigneeMitsubishi Heavy Industries Engine & Turbocharger, Ltd.
InventorsKohei SAKAMOTO, Yoshimi OKAZAKI
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Abstract
The hybrid power generation system includes a renewable energy power generation device and a rotary power generation device connected to a common alternating-current power system. In the system, if renewable energy or an output fluctuates, a correction value calculated based on the fluctuation amount is added to a control parameter as a feedforward component, controlling the rotary power generation device.
Claims9
A hybrid power generation system, comprising:
- 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,
- wherein the hybrid power generation system comprises:
- a fluctuation determination part for 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 correction value calculation part for calculating a correction value of the control parameter based on the fluctuation amount, and
- wherein the control device controls the rotary power generation device based on a control parameter which is obtained by adding, as a feedforward component, the correction value calculated by the correction value calculation part, 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.
6 more elements
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, a correction value calculated based on the fluctuation amount.
5 more elements
Dependencies are inferred from the claim text.