Design concepts of multivariable adaptive on-off control systems

The design of adaptive fuzzy controller consisted of multipositional and pulse-duration controllers is discussed. The paper shows that the multi-positional controller implements the quasi-optimal control with respect to response time while the pulse-duration one performs pulse control ensuring the desirable accuracy. With the help of a fuzzy parametric adaptation algorithm and the proposed controller, high control performance was attained under changing plant dynamics and control actions' cross influence.