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This article presents a design of the internal model control(IMC)based single degree of freedom(SDF) fractional order(FO)PID controller with a desired bandwidth specification for a class of fractional order system(FOS). The drawbacks of the SDF FO-IMC are eliminated with the help of the two-degree of freedom(TDF)FO PID controller. The robust stability and robust performance of the designed controller are analyzed using an example.
This article presents a design of the internal model control (IMC) based single degree of freedom (SDF) fractional order (FO) PID controller with a desired bandwidth specification for a class of fractional order system (FOS). The drawbacks of the SDF FO -IMC are eliminated with the help of the two-degree of freedom (TDF) FO PID controller. The robust stability and robust performance of the designed controller is analyzed using an example.