Developments of intuitive and effective control methods using piecewise bilinear model predictive control systems

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Despite the many analysis and synthesis methods proposed for nonlinear control systems, difficulties remain in dealing with nonlinear control systems, compared to linear systems, and the major reason lies in the lack of a general parametric expression for nonlinear systems. In addition, it is not easy to handle nonlinear control theories for onsite control engineers. To overcome the difficulties, we aimed to develop a control method which was not difficult to design the nonlinear control systems. In this work, we developed intuitive and effective control methods using piecewise bilinear model predictive control system. As the control performance, we proposed a piecewise controller for multi-input and multi-output nonlinear systems, the robust controller, a look-up-table type controller, a servo controller and an observer system. We also proposed a piecewise bilinear models for feedback learning based on on-line feedforward controller design.