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RESEARCH PRODUCT

Motion Control of Large Inertia Loads Using Electrohydrostatic Actuation

Damiano PadovaniPetter H. Gøytil

subject

Computer simulationComputer science020209 energymedia_common.quotation_subject020208 electrical & electronic engineeringNatural frequency02 engineering and technologyInertiaMotion controlAccumulator (energy)Improved performanceControl theory0202 electrical engineering electronic engineering information engineeringActuatormedia_commonEfficient energy use

description

Electrohydrostatic actuation is an emerging technology combining the advantages of hydraulic and electric actuation, resulting in energy efficient solutions that appear electric from the outside while hydraulic on the inside. Conventional solutions, however, significantly reduce the natural frequency of the system compared to traditional hydraulic actuators. This may result in considerable loss of performance under feedback control. In this paper, a simple modification for increasing the natural frequency of the system involving a high-pressure accumulator is proposed and investigated. Theoretical analysis demonstrates the potential for considerable improvements using the proposed solution, resulting in higher natural frequencies and improved performance. The results are verified by numerical simulation.

yearjournalcountryeditionlanguage
2020-09-142020 IEEE 16th International Workshop on Advanced Motion Control (AMC)
https://doi.org/10.1109/amc44022.2020.9244442