Air Compressor Station Predictive Adjustment Control Method

Abstract

The invention discloses a predictive pressure regulation control method of an air compressor station. Firstly, each air compressor is started according to the given initial air supply pressure of the air compressor station to put the air compressors into operation. The given initial pressure setting is between loading and The intermediate value between the unloading pressure; second, the given value given by the rolling optimization calculation model makes each air compressor in a loaded state, and finally the system reaches equilibrium; third, according to the real-time information collected by the data acquisition system, when When the actual pressure of the gas supply pipeline network is greater than or less than the predicted given value and meets the unloading or loading conditions, the predictive controller gives a new given value through optimization calculation, self-adaptive learning mode and judgment of constraint conditions, and adjusts the output through PID as The setting of the frequency converter controls the gas production of the air compressor to adjust the pressure of the pipe network and achieve a new balance. The invention can ensure the stability of the air supply system, and can also adjust the air supply pressure with the change of the user's air load, so as to realize the pressure balance adjustment of the pipe network of the air compressor station.

Description

technical field [0001] The invention relates to the automatic control technology of an air compressor station. Background technique [0002] In the actual operation of the air compressor station, when the air compressor is running at low load and the pressure in the air storage tank rises to the set pressure, it is necessary to adjust the pressure of the pipe network. There are three most widely used technologies: [0003] The first is the automatic unloading technology of the air compressor, which automatically separates the main motor of the air compressor from the compression part, so the air compressor does not generate compressed gas at this time, and the motor is running at no load, and its power consumption is about the rated operation of the motor About 10%, this part of the electric energy is actually consumed for free. [0004] The second is the overpressure interlock start-stop electrical control technology of the air compressor. This technology will cause freque...

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Problems solved by technology

[0004] The second is the overpressure interlock start-stop electrical control technology of the air compressor. This technology will cause frequent start-stop of the motor when the load changes greatly and the capacity of the air storage tank is small.

However, the pressure of the patented air supply main pipe cannot be adjusted according to user needs during operation

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