Abstract
There is a strong demand in practical fields to obtain better control performance by means of a more effective utilization of future information. One useful method for improving the dynamic performance of a control system is to utilize the future desired signal if possible. Recently, a synthesis method for unified predictive control, called UPC, has been developed by Soeterboek and coworkers. It can be said that by this method the unification of several well-known predictive control methods has been accomplished. The purpose of this study is to find out whether the UPC controller is applicable to an electro-hydraulic servo-system. A hydraulic system with the UPC controller was designed and the performance of the system was investigated by experiments and computer simulation. It was verified that the performance of the system was improved considerably by employing this synthesis method.
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