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The modified Smith predictor is well known as an effective time-delay compensator for a plant with large time delays, and several papers on the modified Smith predictor have been published. The parametrization of all stabilizing modified Smith predictors for minimum-phase time-delay plants is obtained by Yamada and Matsushima. In addition, Yamada et al. expanded the result by Yamada and Matsushima...
A multi-period repetitive control system is a type of servomechanism for a periodic reference input. Even if a plant does not include time-delay, the transfer function from the periodic reference input to the output and that from the disturbance to the output of the multi-period repetitive control system generally have an infinite number of poles. The purpose of this paper is to propose the concept...
In this paper, we examine a design method for modified Smith predictor for non-minimum-phase time-delay plants with multiple time-delays. The modified Smith predictor is well known as an effective time-delay compensator for a plant with large time-delay, and several papers on the modified Smith predictor have been published. The parametrization of all stabilizing modified Smith predictors for minimum-phase...
The multi-period repetitive control system is a type of servomechanism for periodic reference input. Even if the plant does not include time-delay, the transfer function from the reference input to the output and that from the disturbance to the output of the multi-period repetitive control system generally have an infinite number of poles. In order to specify the input-output characteristic and the...
We present a solution to the benchmark problem of position control for a coupled three-inertia system. We adopt two-degree of freedom control structure that provides the feedforward controller based on the idea of filtered inverse system. The feedback controller is given by the robust control design method using the phase information proposed by Yamada (1982). We cannot satisfy all of the specifications,...
We examine antiwindup internal model control with control input saturation. Past studies of antiwindup control systems have not considered the influence of disturbance. We give a new design method-antiwindup internal model control systems with unknown external signal. This method is constructed by a fusion of the internal model control structure and the disturbance observer. Using the present method,...
We examine robust repetitive control systems. The robust repetitive control design method of past studies must solve the /spl mu/ analysis problem. In the present paper, we give a design method of robust repetitive control systems without solving the /spl mu/ analysis problem. This method uses the free parameter of the controllers designed based on H/sub /spl infin// control theory. We give a simple...
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