ANALOG FRACTIONAL ORDER CONTROLLER IN A TEMPERATURE CONTROL APPLICATION

An analog fractional order PIα controller using a fractional order impedance device, a FractorTM (patent pending), is demonstrated in a temperature control application. The performance improvement over a standard PI controller was notable in reduction of overshoot and decreased time to stable temperature while retaining the long term stability and set point accuracy of the standard controller. The modification of the standard controller to a fractional order controller was as simple as replacing the integrator capacitor with a FractorTM.