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In many industrial applications positioning systems are required to follow trajectory paths in the range of several centimeters and featuring at the same time a nanometre-range precision. Neither pure piezoelectric stages nor standard positioning systems with motor and spindle are able to meet such requirements as a single actuator, because of the small operation range on the one hand and inadequacies like backlash and friction on the other hand. Hybrid positioning systems, realized as a combination of a “coarse” and a “fine” actuator, aim to solve this problem. The wide range of applications enables a considerable market potential for such devices, but yields changing control requirements due to the high variety of possible positioned objects and positioning tasks and requires therefore a high-performance control system. In this paper a model-based control design for piezoelectric hybrid nanopositioning systems is presented. The proposed control consists of a multivariable state-feedback control on the basis of a novel plant representation offering a sufficient robustness. The designed control is realized and experimentally tested with a commercially available hybrid nanopositioning system featuring a DC drive, representing the coarse actuator, and a piezoelectric actuator utilized as fine actuator.

Elektrotechnik und Medientechnik

Beitrag (Sammelband oder Tagungsband)

László Juhász, J. Maas

Adaptive Regelung für piezoelektrisch-basierte Hybridsysteme

Konferenzband der SPS/IPC/Drives 2011 (Nürnberg)

2011

Elektrotechnik und Medientechnik

Beitrag (Sammelband oder Tagungsband)

László Juhász, J. Maas

Online Controller Optimization for Hybrid Micropositioning Systems

Proceedings of the IEEE/ASME International Conference on Advanced Intelligent Mechatronics (AIM) [03.-07.07.2011, Budapest, Ungarn]

2011

Elektrotechnik und Medientechnik

Beitrag (Sammelband oder Tagungsband)

László Juhász, J. Maas

State-Space Control of Hybrid Micropositioning Systems for Industrial Applications

Konferenzband der VDI-Mechatroniktagung 2011 (31.03.-01.04.2011, Dresden)

2011

Elektrotechnik und Medientechnik

Zeitschriftenartikel

László Juhász, J. Maas

FPGA-Based Control of Piezoelectric Actuators

Serbian Journal of Electrical Engineering, vol. 8, no. Mai (2), pp. 181-201

2011

DOI: 10.2298/SJEE1102181J

Elektrotechnik und Medientechnik

Zeitschriftenartikel

László Juhász, J. Maas, B. Borovac

Parameter identifications and hysteresis compensation of embedded piezoelectric stack actuators

Mechatronics, vol. 21, no. Februar (1), pp. 329-338

2011

DOI: 10.1016/j.mechatronics.2010.12.006

Abstract anzeigen

A novel method for the identification of embedded piezoelectric stack actuator parameters in combination with a real-time capable hysteresis compensation measure is presented. The presented algorithms are based on the Maxwell resistive capacitor model and are particularly useful for the identification of piezoelectric actuators embedded in a high-precision micropositioning system where the disassembly of the complete system for separate actuator identification is not recommended or not possible. The parameter identification can be performed in a fully automated way and enables the adaptation of the compensation routine to the changed circumstances (temperature difference, wearing of actuators) as well. The hysteresis compensation method proposed here does not require significant CPU or memory resources. It can be implemented as an additional task on the already existing controller or a low-budget FPGA. As an example, the proposed method was validated experimentally by the parameter identification and hysteresis compensation of the piezoelectric actuators incorporated in a commercially available hybrid micropositioning system. The achieved experimental results are in very good agreement with the theoretical ones.

Elektrotechnik und Medientechnik

Beitrag (Sammelband oder Tagungsband)

László Juhász, T. Fichtner, A. Kiffe, J. Maas

Model-Based State-Space Control of Hybrid Micropositioning Systems

Proceedings of the 5th IFAC Symposium on Mechatronic Systems (September 2010, Cambridge, MA, USA)

2010

Elektrotechnik und Medientechnik

Beitrag (Sammelband oder Tagungsband)

László Juhász, A. Kiffe, J. Maas

Friction and Hysteresis Compensation of a Hybrid Micro-Positioning System

Proceedings of the 12th International Conference on New Actuators (ACTUATOR 10) [14.-16.06.2010, Bremen]

2010

Elektrotechnik und Medientechnik

Beitrag (Sammelband oder Tagungsband)

J. Tasevski, László Juhász, J. Maas, B. Borovac

Multiplicative and Additive Piezoelectric Hysteresis Compensation Methods for Real-Time Micropositioning Applications

Proceedings of the 54th Conference for Electronics, Telecommunications, Computers, Automatic Control and Nuclear Engineering (Juni 2010, Donji Milanovac, Serbien)

2010

Elektrotechnik und Medientechnik

Beitrag (Sammelband oder Tagungsband)

László Juhász, A. Kiffe, J. Maas

FPGA-Based Interface for Control of a Hybrid Micropositioning Stage

Proceedings of the 35th Annual Conference of the IEEE Industrial Electronics Society (IECON-2009) [03.-05.11.2009, Porto, Portugal]

2009

Elektrotechnik und Medientechnik

Beitrag (Sammelband oder Tagungsband)

László Juhász, A. Kiffe, J. Maas

Modellierung und Regelung eines hybriden Nanopositionierungssystems

Internationales Forum Mechatronik (ifm), Linz, Österreich, pp. 161-174

2009

Elektrotechnik und Medientechnik

Beitrag (Sammelband oder Tagungsband)

László Juhász, A. Kiffe, J. Maas, B. Borovac

FPGA-Based Interface for Fast Data Exchange between a Rapid Control Prototyping System and a Hybrid Micropositioning Stage

Proceedings of the 53rd Conference for Electronics, Telecommunications, Computers, Automatic Control and Nuclear Engineering (15.-19.06.2009, Vrnjačka Banja, Serbien)

2009

Elektrotechnik und Medientechnik

Beitrag (Sammelband oder Tagungsband)

László Juhász, S. Lillwitz, F. Schütte

AFDX for Airplanes

Aerospace Testing International 2007

2007

Elektrotechnik und Medientechnik

Beitrag (Sammelband oder Tagungsband)

László Juhász, K. Diekstall, F. Schütte

Use of rapid control prototyping (RCP) and hardware in the loop (HIL) technology for development and tests of Aerospace applications

Konferenzband der AIRTEC 2007 ('Supply on the wings'; 2. Internationale Zulieferermesse für die Luft- und Raumfahrt) [24.-25.10.2007, Frankfurt am Main]

2007

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