Abstract: As a high energy-consumption system in widespread application, the energysaving problem of central air-conditioning system is an important problem to be paid much attention. Considering the shortcoming of the traditional fixedflow method, an improved method of load servo tracking is proposed. In order to decrease the energyconsumption of central air-conditioning system, this paper proposes an improved method to monitor the load of ccntral airconditioning system and control the pump motor by a computer. Tracking servo system model based on fuzzyneural network theory is established, and the improved model is simulated by practical datum. Simulation results show that the central air-conditioning system increases the system efficient, and decreases energy-consumption.

Key words: fuzzy-neural network, central air-conditioning controlling system, tracking servo system