FPGA-Based Compensator of Hysteretic Actuator Nonlinearities for Highly Dynamic Applications

FPGA-Based Compensator of Hysteretic Actuator Nonlinearities for Highly Dynamic Applications

This paper presents the design and construction of an inverse controller for the compensation of hysteretic actuator characteristics. The approach is based on the so-called modified Prandtl-Ishlinskii method. The field-programmable-gate-array-based hardware solution allows hysteresis-free actuator o...

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Veröffentlicht in:IEEE/ASME transactions on mechatronics 2008-02, Vol.13 (1), p.112-116
Hauptverfasser: Janocha, H., Pesotski, D., Kuhnen, K.
Format: Artikel
Sprache:eng
Schlagworte:
Coils
Control nonlinearities
Control systems
Displacement control
Field programmable gate arrays
Field-programmable gate array (FPGA)
Frequency
Hardware
Hydraulic actuators
Hysteresis
hysteresis compensation
Magnetostriction
magnetostrictive actuator
modified Prandtl-Ishlinskii method
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Beschreibung
Zusammenfassung:This paper presents the design and construction of an inverse controller for the compensation of hysteretic actuator characteristics. The approach is based on the so-called modified Prandtl-Ishlinskii method. The field-programmable-gate-array-based hardware solution allows hysteresis-free actuator operation at signal frequencies up to 1 kHz. Finally, the effect of hysteresis compensation is presented for an example involving a magnetostrictive actuator.
ISSN:1083-4435
1941-014X
DOI:10.1109/TMECH.2007.915065