Air compressor centralized control system and control method thereof

The invention discloses an air compressor centralized control system and a control method thereof. The air compressor centralized control system comprises an air compressor unit, a controller module, an air compression collecting and combining pipeline, a timing drainage assembly, a nitrogen generation control assembly, an adsorption dryer assembly and an air compressor monitoring module. According to the air compressor centralized control system and the control method thereof, real-time data, read by a flow meter, of the real-time compressed air usage amount are collected and judged through the controller module, when the real-time data numerical value is lower than the lower limit of the numerical value interval set in a PLC module, the PLC module unloads part of the running air compressors and the adsorption dryers, so that the output amount of compressed air is matched with the usage amount, centralized control is realized, the usage amount is balanced according to terminal requirements, the effect of sav