Central air conditioner chilled water supply temperature multivariate linear optimization control method and device

The invention relates to a central air conditioner chilled water supply temperature multivariate linear optimization control device and method.The device comprises a circulation loop and a controller, the circulation loop is formed by sequentially connecting a refrigeration host, a water tank, a fan coil and a chilled water pump, the controller is electrically connected with the refrigeration host, and a first temperature sensor is arranged outdoors; a second temperature sensor is arranged indoors, and the controller is electrically connected with the first temperature sensor and the second temperature sensor. The outdoor temperature value and the indoor temperature value are collected in real time through the first temperature sensor and the second temperature sensor respectively, and the optimized actual chilled water supply temperature set value is calculated in combination with the deep learning algorithm, so that the chilled water supply temperature control accuracy is improved, the system energy consump