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Intelligent modeling, observation, and control for nonlinear systems

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3 Author(s)
Schroder, D. ; Inst. for Electr. Drives, Tech. Univ. Munchen, Germany ; Hintz, C. ; Rau, M.

We present identification methods for nonlinear mechatronic systems. First, we consider a system consisting of a known linear part and an unknown static nonlinearity. With this approach, using an intelligent observer, it is possible to identify the nonlinear characteristic and to estimate all unmeasurable system states. The identification result of the nonlinearity and the estimated system states are used to improve the controller performance. Secondly, the first approach is extended to systems where both the linear parameters and the nonlinear characteristic are unknown. This is achieved by implementing the intelligent observer as a structured recurrent neural network

Published in:

Mechatronics, IEEE/ASME Transactions on  (Volume:6 ,  Issue: 2 )