EPE Association: EPE 1999 - Topic 06c: Piezo and Electrostatic Actuators

EPE 1999 - Topic 06c: Piezo and Electrostatic Actuators
You are here: EPE Documents > 01 - EPE & EPE ECCE Conference Proceedings > EPE 1999 - Conference > EPE 1999 - Topic 06: MOTION CONTROL AND ROBOTICS > EPE 1999 - Topic 06c: Piezo and Electrostatic Actuators

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   DC to AC Converters for Piezoelectric Motors
By M. Crivii; M. Jufer [View]
[Download]

Abstract: For a piezoelectric motor operation a specific and individual power source is necessary. A DC to AC converter, which has different topologies, is used to apply the electrical excitation in order to generate the stator vibrations in resonance. In this paper, four power converter circuits are described and analyzed, using a numerical simulation. The different topologies are compared according to the output current, voltage and power requirements.

   Vibration Damping Using Current Fed Piezoelectric Actuators
By F. Palis; U. Ladra [View]
[Download]

Abstract: Piezoelectric actuators are charcterized by non-linear dynamics and high frequency oscillations. The paper shows that converter with current supply properties yields ideal conditions for feeding piezoelectric actuators. Inertialess charge control can be obtained by realizing sliding mode operation. This control conception is the basis for vibration damping with piezoelectric actuators up to the range of some Kilohertz. Investigations show that energy saving solutions can be realized by applying the principle of mechanical absorbers with adaptive control strategies.

EPE 1999 - Topic 06c: Piezo and Electrostatic Actuators
You are here: EPE Documents > 01 - EPE & EPE ECCE Conference Proceedings > EPE 1999 - Conference > EPE 1999 - Topic 06: MOTION CONTROL AND ROBOTICS > EPE 1999 - Topic 06c: Piezo and Electrostatic Actuators
	[return to parent folder]

	DC to AC Converters for Piezoelectric Motors By M. Crivii; M. Jufer	[View] [Download]
Abstract: For a piezoelectric motor operation a specific and individual power source is necessary. A DC to AC converter, which has different topologies, is used to apply the electrical excitation in order to generate the stator vibrations in resonance. In this paper, four power converter circuits are described and analyzed, using a numerical simulation. The different topologies are compared according to the output current, voltage and power requirements.

	Vibration Damping Using Current Fed Piezoelectric Actuators By F. Palis; U. Ladra	[View] [Download]
Abstract: Piezoelectric actuators are charcterized by non-linear dynamics and high frequency oscillations. The paper shows that converter with current supply properties yields ideal conditions for feeding piezoelectric actuators. Inertialess charge control can be obtained by realizing sliding mode operation. This control conception is the basis for vibration damping with piezoelectric actuators up to the range of some Kilohertz. Investigations show that energy saving solutions can be realized by applying the principle of mechanical absorbers with adaptive control strategies.