The article describes the determination and verification of regulator PID coefficients exampled by regulator which is a part of the control system of pumps for liquids. To implement the identification process we used functions available in Matlab. Obtained in the simulation result amounted to 93.59% of setpoint. The effectiveness of the method is illustrated by the graph allowing comparison of the preset value of the variable capacity of the pump operation with the results obtained from the simulation of the arrangement: the control system - the pump.
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