US 12,298,021 B2
Air conditioning system and method for controlling electrical energy of air conditioning system
Satoru Yanachi, Tokyo (JP); So Nomoto, Tokyo (JP); Kazuyoshi Shinozaki, Tokyo (JP); and Yasushi Sato, Tokyo (JP)
Assigned to Mitsubishi Electric Corporation, Tokyo (JP)
Appl. No. 17/918,705
Filed by Mitsubishi Electric Corporation, Tokyo (JP)
PCT Filed Jun. 18, 2020, PCT No. PCT/JP2020/023902
§ 371(c)(1), (2) Date Oct. 13, 2022,
PCT Pub. No. WO2021/255884, PCT Pub. Date Dec. 23, 2021.
Prior Publication US 2023/0147599 A1, May 11, 2023
Int. Cl. G05B 19/042 (2006.01); F24F 11/47 (2018.01); F24F 11/63 (2018.01)
CPC F24F 11/63 (2018.01) [F24F 11/47 (2018.01); G05B 19/042 (2013.01); G05B 2219/2614 (2013.01)] 6 Claims
OG exemplary drawing
 
1. An air conditioning system comprising:
one or more air conditioners in which refrigerant circulates; and
a first controller configured to limit electrical energy consumed per unit time by the one or more air conditioners when an electrical energy limit condition is satisfied,
the one or more air conditioners each including a compressor and one or more indoor units,
a score corresponding to an indoor unit usage cost being preset for each of the one or more indoor units,
the first controller being configured to:
for each of the one or more air conditioners, calculate a first total value of the score of each of the one or more indoor units;
calculate a second total value of the first total value of each of the one or more air conditioners; and
for each of the one or more air conditioners, set a drive frequency for the compressor according to a ratio of the first total value to the second total value.