Compensation of On-off Sampled-data Control Systems Based on Steady State Response

Abstract

In the optimum control problem, it is well known that the optimum controller is reduced to the on-off type one with suitable computing devices such as digital computer. However, these controllers are generally expensive because of its complexity which realizes the optimal strategy. This paper deals with the design of compensating element for on-off type sampled-data control systems based on the steady state response. It is aimed to give efficient regulation by the on-off controller with simple, easily constructed, compensating element and the limitation of this compensation is investigated. The relay characteristic is assumed to have its imperfection, i.e. hysteresis, and controlled plants are assumed to be linear. This method can be applied to higher order control systems as well as systems with dead time.