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Due to the flatness of the separately excited DC drive a novel control scheme that achieves copper loss minimization can be designed. It makes use of an on-line replanification of desired trajectories by using the information of a fast converging load torque observer. Simulation results show the performance of the proposed control scheme.
Due to the flatness of the induction drive, a control scheme that achieves energy dissipation minimisation can be designed. It makes use of an on-line replanification of desired trajectories by using the information of a fast converging load torque observer. Simulation results show the dynamical performance of the proposed control scheme.
The trajectory aspect of flatness is considered in this article from a feedforward point of view. This leads to the introduction of the notion of exact feedforward linearisation based on differential flatness.
For constant linear systems we introduce the class of exact integral observers which yield generalized PID regulators with good robustness properties. When utilized in conjunction with static state feedbacks they permit to bypass classical asymptotic observers. Three illustrative examples are examined:1.a classical PID controller where we replace the derivative term by appropriate integral ones;2...
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