The Two Methods of Reverse Overshoot Suppression in Automation Systems

Abstract

The task of controlling oscillatory objects is extremely difficult. In the case of a complex object, analytical methods are weaker than the methods based on numerical optimization of the regulators (controllers). The tools incorporated in this method are the set of structures of regulators, the set of target functions and the software for modeling and optimization. Our research has been devoted to studying the methods of constructing the cost (objective, target) functions, their advantages and disadvantages, as well as the reasons for opting VisSim program for simulation and optimization. The most often used control structure is a serial PID-regulator (controller, PID) that contains the proportional, integrating and differentiating paths. Although the special measures for choosing a cost functions allows for suppressing the oscillations in the system, in some cases, these measures are not effective. This paper discusses that the structural methods of suppressing the oscillations in the systems to control the objects are prone to oscillatory instability. These measures include the use of more complex structures rather than the traditional PID. The proposed methods tested on mathematical modeling using simulations to calculate the transient processes confirmed the effectiveness of these methods.