Abstract: A traditional least squares has negatively a clear physical significance in the process of strip flatness pattern recognition and it is too complex in calculation to be suitable for industrial controller to realize. In this paper we deduced the basic model of strip flatness pattern recognition based on Legendre polynomial. Under this mode, there are three outstanding advantages: The i...

In this chapter, a proportional-integral derivative (PID)-type fuzzy logic controller (FLC) is proposed for a discrete-time system in order to track a desired trajectory generated using the flatness property. In order to improve the performance of the proposed controller, genetic algorithm (GA) based on minimizing the integral of the squared error (ISE) is used for tuning the input and output P...

The paper presents the controller design for a highforce short-stroke linear actuator using permanent magnets as excitation. For the desired application a very high dynamic is required despite the presence of large disturbances. After the model description, a flatness based control is presented to force the system following a reference trajectory. Additionally, an adaptive feedback control, bas...

In this paper, a suitable combination of the differential flatness property and the second-order sliding mode controller design technique is proposed for the specification of a robust dynamic feedback multivariable controller accomplishing prescribed trajectory tracking tasks for the earth coordinate position variables of a hovercraft vessel model.

This research work contains results on flatness-based control and sensor fusion for mobile robot systems. Flatness-based control is applicable to differentially flat systems i.e. to systems the behavior of which is determined by the trajectory of a finite collection of quantities, consisting of the flat output and its derivatives [Mounier, H. & Roudolf, J. (2001)],[Rouchon, P. (2005)]. Flatness...

Abstract—Pneumatic artificial muscles are a quite interesting type of actuators which have a very high power-to-weight and power-to-volume ratio. However, their efficient use requires very accurate control methods which can take into account their complex dynamic, which is highly nonlinear. This paper consider a model of two-degree-of-freedom platform whose attitude is determined by three pneum...

A nonlinear mathematical model for the dynamics of permanent magnet synchronous machines with interior magnets is discussed. The current captures saturation and dependency on rotor angle. Based model, a flatness-based field-oriented closed-loop controller feed-forward compensation torque ripples are derived. Effectiveness robustness proposed algorithms demonstrated by simulation results.