US 12,081,028 B2
Power adjustment method and power adjustment device
Kenichi Hamaguchi, Koto-ku (JP); Akinobu Inamura, Koto-ku (JP); and Yuji Koguma, Koto-ku (JP)
Assigned to IHI Corporation, Tokyo (JP)
Appl. No. 18/006,680
Filed by IHI Corporation, Tokyo (JP)
PCT Filed Jul. 28, 2021, PCT No. PCT/JP2021/027922
§ 371(c)(1), (2) Date Jan. 24, 2023,
PCT Pub. No. WO2022/054441, PCT Pub. Date Mar. 17, 2022.
Claims priority of application No. 2020-153216 (JP), filed on Sep. 11, 2020.
Prior Publication US 2023/0283078 A1, Sep. 7, 2023
Int. Cl. H02J 3/38 (2006.01); H02J 3/32 (2006.01); H02J 7/35 (2006.01); H02J 15/00 (2006.01)
CPC H02J 3/32 (2013.01) [H02J 3/38 (2013.01); H02J 7/35 (2013.01); H02J 15/008 (2020.01); H02J 2300/24 (2020.01)] 10 Claims
OG exemplary drawing
 
1. A power adjustment method of controlling power consumption of a power consuming device and charging/discharging power of a power storage device included in a microgrid capable of transmitting and receiving electric power to and from an external electric power system, the method comprising:
a step of calculating an integration error which is an error between a control target value of an integrated amount of grid power transmitted and received between the electric power system and the microgrid and an actual value of the integrated amount of the grid power;
a step of generating a first command value for causing the power consuming device to consume the power on the basis of a low-frequency component of the integration error;
a step of generating a second command value for causing the power storage device to charge and discharge the charging/discharging power on the basis of a high-frequency component of the integration error; and
a step of outputting the first command value to the power consuming device and outputting the second command value to the power storage device.