US 12,266,026 B2
Facility plan evaluation device and facility plan evaluation method
Nobuhiko Itaya, Tokyo (JP)
Assigned to Mitsubishi Electric Corporation, Tokyo (JP)
Appl. No. 17/770,724
Filed by Mitsubishi Electric Corporation, Tokyo (JP)
PCT Filed Nov. 22, 2019, PCT No. PCT/JP2019/045827
§ 371(c)(1), (2) Date Apr. 21, 2022,
PCT Pub. No. WO2021/100200, PCT Pub. Date May 27, 2021.
Prior Publication US 2022/0414799 A1, Dec. 29, 2022
Int. Cl. G06Q 50/06 (2024.01); G01R 19/165 (2006.01); G01R 22/10 (2006.01); G06Q 10/0631 (2023.01)
CPC G06Q 50/06 (2013.01) [G01R 19/16571 (2013.01); G01R 19/1659 (2013.01); G01R 22/10 (2013.01); G06Q 10/06312 (2013.01); G06Q 10/06313 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A facility plan evaluation device comprising:
an input receiver to receive input of a facility plan including capacities and locations of a plurality of charging and discharging facilities to be newly arranged in a power system;
prediction circuitry to predict charge and discharge amounts of the charging and discharging facilities, and demands and power generation amounts of existing facilities, the existing facilities being facilities already connected in the power system;
a power flow calculator to estimate voltage and current in the power system by power flow calculation on the basis of a prediction result of the prediction circuitry;
determination circuitry to determine whether or not at least one of deviation of voltage from a proper range and overcurrent occurs in the power system on the basis of an estimation result of the power flow calculator, and determine whether or not the facility plan needs to be modified on the basis of a determination result;
communication circuitry to send commands to at least one of the plurality of charging and discharging facilities for adjusting operating parameters based on the determination result; and
result presenting circuitry to present a determination result of the determination circuitry,
wherein the charging and discharging facilities include a first charging and discharging facility for which charge and discharge amounts are controllable, and second charging and discharging facilities being the charging and discharging facilities other than the first charging and discharging facility,
when the determination circuitry determines that at least one of the deviation of voltage from the proper range and the overcurrent occurs in the power system, the power flow calculator changes charge and discharge amounts in the operating parameters of the first charging and discharging facility, and performs power flow calculation again to re-estimate the voltage and the current in the power system, and
when the deviation of voltage from the proper range does not occur and the overcurrent does not occur in the power system as a result of re-estimation of the power flow calculator, the determination circuitry determines that the facility plan need not be modified.