Abstract
The pneumatic valves are widely used in the actual industrial production, and their practical performances are very important to the control system. Traditionally, the common PID controller is widely used in the control of the pneumatic valves. Due to the strong nonlinearity of the pneumatic valve, the control effect of the PID method for the pneumatic valve is below what is desired. In order to address this problem, a fuzzy PID control scheme is presented to be used in the pneumatic system in this paper. Simulation results and the practical control effect show that this kind of compound control structure has better performance than the classical PID control method and satisfactory effects have been obtained.
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