Asymmetric Integral Controller

The control of plants with the asymmetric dynamics is analyzed. The characteristic feature of these plants is that the dynamics of the plant output parameter during the rise and decay is different. The controller for plants with the asymmetric dynamics has been suggested and analyzed. The control algorithm used in the proposed controller is modification of the integral control method. The characteristic property of the algorithm is that the value of integral constant of the controller is changed when the sign of the error changes. This feature enables achieving improved transient performance of the analyzed control system as compared to the case when the classical integral controller is used. The noteworthy advantage of the proposed controller is higher electromagnetic disturbance compatibility as compared to the asymmetric controllers that include proportional and derivative terms. The results of the investigation of the concrete control system based on the proposed controller are presented and analyzed. The investigation was performed using the electronic circuit simulation program Spice.