The invention provides a computer room air-conditioning
system performing combined operation of
phase change thermal energy storage, a natural cold source and an artificial cold source, and relates to a computer room air-conditioning
system performing combined operation of
phase change thermal energy storage, the natural cold source and the artificial cold source. The computer room air-conditioning
system comprises a
phase change thermal energy storage device (1), an outdoor
air cooling device (2), an air-conditioning water chilling unit (3), an indoor fan coil (4), a circulating
water pipe (5) and an intelligent expert
control system (6). The expert
control system controls the time-sharing mutual combined operation of the indoor fan coil, the natural cold source equipment, the artificial cold source equipment and the phase change
thermal energy storage device according to a set temperature of a computer room and an indoor
environmental temperature, so that the natural cold source can be utilized fully and effectively; time-shifting application of energy is realized through phase change
thermal energy storage, and efficient
energy storage is conducted by utilizing valley-price
electricity at night; and artificial
refrigeration equipment is enabled to operate efficiently. The computer room air-conditioning system provided by the invention has high efficiency, saves energy, protects the environment and is economical in operation.