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A kind of new design method for two-degree-of-freedom(2DOF)PID regulator was presented,in which,a new global search heuristic--improved generalized extremal optimization(GEO)algorithm is applied to the parameter optimization design of 2DOF PID regulator.The simulated results show that very good dynamic response performance of both command tracking and disturbance rejection characteristics can be achieved simultaneously.At the same time,the comparisons of simulation results with the improved GA,the basic GEO and the improved GEO were given.From the comparisons,it is shown that the improved GEO algorithm is competitive in performance with the GA and basic GEO and is an attractive tool to be used in the design of two-degree-of-freedom PID regulator.
A new method of two-degree-of-freedom (2DOF) PID regulator was presented in which a new global search heuristic - improved generalized extremal optimization (GEO) algorithm is applied to the parameter optimization design of 2DOF PID regulator. The simulated results show that very good dynamic response performance of both command tracking and disturbance rejection characteristics can be realized. At the same time, the comparisons of simulation results with the improved GA, the basic GEO and the improved GEO were given. From the comparisons, it is shown that the improved GEO algorithm is competitive in performance with the GA and basic GEO and is an attractive tool to be used in the design of two-degree-of-freedom PID regulator.