2019
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1. IntroductionThe air compressor is a device that uses electric energy to compress air as a power source. It is widely used in industrial and mining enterprises. The capacity of the supporting motor is generally large, and most of them are continuously operated all the year round, so the potential for energy saving is great.At present, the common compressors are piston type, screw type and centrifugal type. No matter which working mode, the gas output per unit time of the compressor is certain. At present, the compressor adopts upper and lower limit control or start-stop control, that is...