Patent ID: 7204093
Filing Date: 2007-04-17
Classification: F24F

Abstract:
1. A central control system of air conditioners, comprising: a plurality of air conditioners, installed in rooms of a building, for providing air conditioning; and a central control unit, connected to the plurality of air conditioners via a network, and configured for receiving a control command for monitoring and controlling each of the air conditioners, said central control unit adjusting an operating schedule of each of the air conditioners for limiting a total peak power consumption of the plurality of air conditioners in operation below a reference power value, said central control unit controlling an operation of each of the air conditioners based on the adjusted operating schedule, the central control unit comprising: an air conditioner communication module for transmitting and receiving signals to and from the plurality of air conditioners via the network; a database configured to store a maximum power consumption value for each of the air conditioners; a peak operation processor configured to calculate a total peak power consumption based on the maximum power consumption value of each of the air conditioners stored in the database, and to determine an operating schedule and an operating mode of each of the air conditioners when the total peak power consumption of the air conditioners in operation exceeds the reference power value; and an air conditioner controller configured to issue a control signal for allowing a corresponding air conditioner to operate in the determined operating mode according to the determined operating schedule.