US 12,328,004 B2
Power control system, power supply instruction system, and power control method
Keisuke Yamane, Tokyo (JP); Shunsuke Kawano, Tokyo (JP); and Tomihiro Takano, Tokyo (JP)
Assigned to MITSUBISHI ELECTRIC CORPORATION, Tokyo (JP)
Appl. No. 18/287,474
Filed by Mitsubishi Electric Corporation, Tokyo (JP)
PCT Filed Apr. 28, 2021, PCT No. PCT/JP2021/017039
§ 371(c)(1), (2) Date Oct. 19, 2023,
PCT Pub. No. WO2022/230128, PCT Pub. Date Nov. 3, 2022.
Prior Publication US 2024/0388097 A1, Nov. 21, 2024
Int. Cl. H02J 3/38 (2006.01); H02J 3/00 (2006.01); H02J 3/16 (2006.01)
CPC H02J 3/38 (2013.01) [H02J 3/003 (2020.01); H02J 3/004 (2020.01); H02J 3/16 (2013.01)] 11 Claims
OG exemplary drawing
 
1. A power control system, comprising: a processor to execute a program; and a memory to store the program which, when executed by the processor, performs processes of, collecting a control power amount range which is a control range of an active power amount and a reactive power amount of a distributed energy resource connected to a power distribution system;
contracting the power distribution system including the distributed energy resource in a power transmission system point to make the power distribution system serve as a contraction power distribution system using the control power amount range, and calculating a contraction control power amount range which is a control range of an active power amount and a reactive power amount of the contraction power distribution system;
calculating a contraction power amount made up of an active power amount and a reactive power amount of the contraction power distribution system to satisfy the contraction control power amount range based on a power transmission system evaluation value indicating evaluation of a state of a power transmission system; calculating a power control amount made up of an active power amount and a reactive power amount controlled by the distributed energy resource based on the contraction power amount and a power distribution system evaluation value indicating evaluation of a state of the power distribution system; and transmitting the power control amount to the distributed energy resource.
 
9. A power control method in a power control system controlling a distributed energy resource connected to a power distribution system, comprising: collecting a control power amount range which is a control range of an active power amount and a reactive power amount of the distributed energy resource; contracting the power distribution system including the distributed energy resource in a power transmission system point to make the power distribution system serve as a contraction power distribution system using the control power amount range, and calculating a contraction control power amount range which is a control range of an effective power amount and a reactive power amount of the contraction power distribution system;
calculating a contraction power amount made up of an active power amount and a reactive power amount of the contraction power distribution system to satisfy the contraction control power amount range based on a power transmission system evaluation value indicating evaluation of a state of a power transmission system; calculating a power control amount made up of an active power amount and a reactive power amount controlled by the distributed energy resource based on the contraction power amount and a power distribution system evaluation value indicating evaluation of a state of the power distribution system; and transmitting the power control amount to the distributed energy resource.