Whole building air-conditioning system

Abstract

A whole building air-conditioning system includes a whole building air-conditioning device that conditions air in an air-conditioning room and conveys the air conditioned in the air-conditioning room to a plurality of air-conditioning target spaces, and a controller that executes power saving processing on the whole building air-conditioning device that sets a target temperature of each of the plurality of air-conditioning target spaces to a temperature at which a power load is smaller based on a reduction request for reducing use of power.

What is claimed is: 
     
         1 . A whole building air-conditioning system comprising:
 a whole building air-conditioning device that conditions air in an air-conditioning room and conveys the air conditioned in the air-conditioning room to a plurality of air-conditioning target spaces; and   a controller that executes power saving processing on the whole building air-conditioning device that sets a target temperature of each of the plurality of air-conditioning target spaces to a temperature at which a power load is smaller based on a reduction request for reducing use of power.   
     
     
         2 . The whole building air-conditioning system according to  claim 1 , further comprising:
 a reception unit that receives a power saving request from a power supplier; and   a power management server that selects a region corresponding to a target of the power saving request based on the received power saving request, and transmits the reduction request to the whole building air-conditioning device belonging to the selected region.   
     
     
         3 . The whole building air-conditioning system according to  claim 1 ,
 wherein, as the power saving processing, the controller
 sets the target temperature to be lower by a predetermined temperature than a target temperature before the reduction request is issued during a heating operation, and 
 sets the target temperature to be higher by a predetermined temperature than the target temperature before the reduction request is issued during a cooling operation. 
   
     
     
         4 . The whole building air-conditioning system according to  claim 1 , wherein, as the power saving processing, the controller sets the target temperature to a preset temperature at which a power load is smaller. 
     
     
         5 . The whole building air-conditioning system according to  claim 1 , wherein, as the power saving processing, the controller does not allow the target temperature to be set outside a preset temperature range in which a power load is smaller. 
     
     
         6 . The whole building air-conditioning system according to  claim 1 , further comprising a storage battery that is a power supply source of the whole building air-conditioning device, which is different from power supply from the power supplier,
 wherein the controller transmits the reduction request when a power failure state where the power supply from the power supplier is not performed is detected.   
     
     
         7 . The whole building air-conditioning system according to  claim 6 ,
 wherein, in a case where the reduction request is issued in the power failure state, as the power saving processing,   the controller sets the target temperature to be lower by a first predetermined temperature than a target temperature before the reduction request is issued during a heating operation,   sets the target temperature to be higher by a second predetermined temperature than the target temperature before the reduction request is issued during a cooling operation, and   determines the first predetermined temperature and the second predetermined temperature based on a remaining power amount of the storage battery.   
     
     
         8 . The whole building air-conditioning system according to  claim 6 ,
 wherein, in a case where the reduction request is issued in the power failure state, as the power saving processing,   the controller sets the target temperature to a target temperature at which the power load is smaller, and   determines the target temperature at which the power load is smaller based on a remaining power amount of the storage battery.   
     
     
         9 . The whole building air-conditioning system according to  claim 6 ,
 wherein, in a case where the reduction request is issued in the power failure state, as the power saving processing,   the controller does not allow the target temperature to be set outside a temperature range in which a power load is smaller, and   determines the temperature range in which the power load is smaller based on a remaining power amount of the storage battery.   
     
     
         10 . A whole building air-conditioning system comprising:
 a whole building air-conditioning device that conditions air in an air-conditioning room and conveys the air conditioned in the air-conditioning room to a plurality of air-conditioning target spaces; and   a controller that executes power saving processing on the whole building air-conditioning device that conveys the air in the air-conditioning room only to a specific air-conditioning target space without conveying the air in the air-conditioning room to all the plurality of air-conditioning target spaces after a reduction request for reducing use of power based on the reduction request.   
     
     
         11 . The whole building air-conditioning system according to  claim 10 , further comprising:
 a reception unit that receives a power saving request from a power supplier; and   a power management server that selects a region corresponding to a target of the power saving request based on the received power saving request and transmits the reduction request to the whole building air-conditioning device belonging to the selected region.   
     
     
         12 . The whole building air-conditioning system according to  claim 10 ,
 wherein the whole building air-conditioning device includes an air conditioner that adjusts a temperature of the air in the air-conditioning room, and a conveyance unit that conveys the air whose temperature is adjusted by the air conditioner to each of the plurality of air-conditioning target spaces, and   the controller controls the conveyance unit such that the air in the air-conditioning room is conveyed only to the specific air-conditioning target space as the power saving processing.   
     
     
         13 . The whole building air-conditioning system according to  claim 10 , further comprising a person detector that detects a person in the plurality of air-conditioning target spaces,
 wherein the controller determines the specific air-conditioning target space based on detection information by the person detector.   
     
     
         14 . The whole building air-conditioning system according to  claim 10 , further comprising a storage battery that is a power supply source of the whole building air-conditioning device, which is different from power supply from a power supplier,
 wherein the controller transmits the reduction request when a power failure state where the power supply from the power supplier is not performed is detected.   
     
     
         15 . The whole building air-conditioning system according to  claim 14 ,
 wherein, in a case where the reduction request is issued in the power failure state, as the power saving processing,   the controller conveys the air in the air-conditioning room to the specific air-conditioning target space, and   determines the specific air-conditioning target space based on a remaining power amount of the storage battery.   
     
     
         16 . The whole building air-conditioning system according to  claim 10 , wherein, during the power saving processing, the controller changes an air-conditioning target space to be the specific air-conditioning target space among the plurality of air-conditioning target spaces with lapse of time. 
     
     
         17 . The whole building air-conditioning system according to  claim 16 , wherein the controller selects the air-conditioning target space to be the specific air-conditioning target space from among all the air-conditioning target spaces in a priority order and changes the air-conditioning target space to be the specific air-conditioning target space with lapse of time. 
     
     
         18 . The whole building air-conditioning system according to  claim 10 , further comprising a notification control unit that notifies that a temperature difference between a temperature of the specific air-conditioning target space to which the air in the air-conditioning room is conveyed and a temperature of an air-conditioning target space to which the air in the air-conditioning room is not conveyed is large, in a case where the temperature difference is more than or equal to a predetermined temperature, during the power saving processing. 
     
     
         19 . The whole building air-conditioning system according to  claim 14 , wherein, in a case where the reduction request is issued in the power failure state, the controller executes the power saving processing only during a power saving processing period desired by a user. 
     
     
         20 . The whole building air-conditioning system according to  claim 14 ,
 wherein the controller acquires presence-in-room history information of a user,   determines a power saving processing execution period during which the power saving processing is executed based on the presence-in-room history information in a case where the reduction request is issued in the power failure state, and   executes the power saving processing only during the power saving processing execution period.