Air conditioner load control method and system

The invention discloses an air conditioner load control method and system. The method includes the steps of obtaining the load parameters of a power grid system, obtaining the power load regulating variables corresponding to the load parameters, obtaining the temperature parameters of all controlled sections regulated and controlled by a central air conditioning system, obtaining switching signals of all the controlled sections according to the temperature parameters of all the controlled sections, generating the operation load rate of a central regulating and controlling system according to the power load regulating variables and the switching signals of all the controlled sections, obtaining a load regulating and control signal corresponding to the operation load rate, and regulating and controlling a water chilling unit and a circulating water pump of the central regulating and conditioning system according to the load regulating and control signal. When the method and the system are implemented, the power load of the central air conditioning system is regulated on the basis of the temperature of the controlled sections and the load of the power grid system, and therefore the peak load shifting can be conducted on the power grid load, and the power grid system can keep running stably.