EPE Association: EPE-PEMC 2004 - Topic 05-6: Piezo and electrostatic actuators

EPE-PEMC 2004 - Topic 05-6: Piezo and electrostatic actuators
You are here: EPE Documents > 04 - EPE-PEMC Conference Proceedings > EPE-PEMC 2004 - Conference > EPE-PEMC 2004 - Topic 05: ELECTRICAL MACHINES AND ACTUATORS > EPE-PEMC 2004 - Topic 05-6: Piezo and electrostatic actuators

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   Causal Modelling And Identification Of A Planar Actuator
By Pigache Francois, Lemaire-Semail Betty [View]
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Abstract: The planar piezoelectric actuator has two linear degrees of freedom made from a simple mechanical interface, and presents interest for haptic devices with multi-degrees of freedom and small conveyance systems. The objective is to control this device, inducing the need to define a complete linear model. This article is about the dynamic model description, based on a general analytic approach, and the parameters identification method is described.

   Sliding Mode Control Based Piezoelectric Actuator Control
By Asif Sabanovic, Khalid Abidi, Serhat Yesilyurt [View]
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Abstract: In this paper a method for piezoelectric stack actuator control is proposed. In addition a brief discussion about the usage of the same methods for estimation of external force acting to the actuator in contact with environment is made. The method uses sliding mode framework to design both the observer and the controller based on an electromechanical lumped model of the piezoelectric actuator. Furthermore, using a nonlinear differential equation the internal hysteresis disturbance is removed from the total disturbance in an attempt to estimate the external force acting on the actuator. It is then possible to use this external force estimate as a means of force control of the actuator. Simulation and experiments are compared for validating the disturbance and external force estimation technique. Some experiments that incorporate disturbance compensation in a closed-loop SMC control algorithm are also presented to prove the effectiveness of this method in producing high precision motion.

EPE-PEMC 2004 - Topic 05-6: Piezo and electrostatic actuators
You are here: EPE Documents > 04 - EPE-PEMC Conference Proceedings > EPE-PEMC 2004 - Conference > EPE-PEMC 2004 - Topic 05: ELECTRICAL MACHINES AND ACTUATORS > EPE-PEMC 2004 - Topic 05-6: Piezo and electrostatic actuators
	[return to parent folder]

	Causal Modelling And Identification Of A Planar Actuator By Pigache Francois, Lemaire-Semail Betty	[View] [Download]
Abstract: The planar piezoelectric actuator has two linear degrees of freedom made from a simple mechanical interface, and presents interest for haptic devices with multi-degrees of freedom and small conveyance systems. The objective is to control this device, inducing the need to define a complete linear model. This article is about the dynamic model description, based on a general analytic approach, and the parameters identification method is described.

	Sliding Mode Control Based Piezoelectric Actuator Control By Asif Sabanovic, Khalid Abidi, Serhat Yesilyurt	[View] [Download]
Abstract: In this paper a method for piezoelectric stack actuator control is proposed. In addition a brief discussion about the usage of the same methods for estimation of external force acting to the actuator in contact with environment is made. The method uses sliding mode framework to design both the observer and the controller based on an electromechanical lumped model of the piezoelectric actuator. Furthermore, using a nonlinear differential equation the internal hysteresis disturbance is removed from the total disturbance in an attempt to estimate the external force acting on the actuator. It is then possible to use this external force estimate as a means of force control of the actuator. Simulation and experiments are compared for validating the disturbance and external force estimation technique. Some experiments that incorporate disturbance compensation in a closed-loop SMC control algorithm are also presented to prove the effectiveness of this method in producing high precision motion.