Implementation of the low computational cost fuzzy PID controller for two-mass drive system

In the paper a new implementation algorithm for fuzzy controller is proposed. By applying an additional Petri-like transition layer, which identifies the current operation point, an significant reduction of computational effort is ensured. This allows to implement much more complicated fuzzy controller using simple microprocessor. As an hypothetical object a two-mass drive system is selected. The good damping ability of the proposed control structure is obtained. The theoretical considerations and simulation study are confirmed by experimental tests using DSpace 1103 control card.