Energy-saving control method and system based on multivariable central air conditioning system

• Main Authors: LUO FAYI, TAN JINJUN, GAO HUI, WANG HUI
• Format: Patent
• Language: Chinese; English
• Published: 07.01.2022
• Subjects: AIR-CONDITIONING, AIR-HUMIDIFICATION, VENTILATION, USE OF AIRCURRENTS FOR SCREENING; BLASTING; HEATING; LIGHTING; MECHANICAL ENGINEERING; RANGES; VENTILATING; WEAPONS

The invention discloses an energy-saving control method based on a multivariable central air conditioning system. The energy-saving control method comprises the steps that the cold water return temperature of an intercooling water pump and the cooling water return temperature of the intercooling water pump are obtained; on the basis of the cold water return temperature and the cooling water return temperature, the cold water pump frequency of a cold water pump, the cold water outlet temperature set value of an intercooling water unit, the cooling water pump frequency of the cooling water pump and the fan operation state of an intercooling tower fan are obtained; and each device in the central air conditioning system is controlled by utilizing the cold water pump frequency, the cold water outlet temperature set value, the cooling water pump frequency and the fan operation state. The invention further discloses an energy-saving control device based on the multivariable central air conditioning system, a control