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A Comparison Study of a Novel Self-Contained Electro-Hydraulic Cylinder versus a Conventional Valve-Controlled Actuator—Part 2: Energy Efficiency
Article

A Comparison Study of a Novel Self-Contained Electro-Hydraulic Cylinder versus a Conventional Valve-Controlled Actuator—Part 1: Motion Control

Department of Engineering Sciences, University of Agder, 4879 Grimstad, Norway
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Actuators 2019, 8(4), 79; https://doi.org/10.3390/act8040079
Received: 30 October 2019 / Revised: 18 November 2019 / Accepted: 3 December 2019 / Published: 5 December 2019
(This article belongs to the Special Issue Electro-Hydraulic Actuators)
This research paper presents the first part of a comparative analysis of a novel self-contained electro-hydraulic cylinder with passive load-holding capability against a state of the art, valve-controlled actuation system that is typically used in load-carrying applications. The study is carried out on a single-boom crane with focus on the control design and motion performance analysis. First, a model-based design approach is carried out to derive the control parameters for both actuation systems using experimentally validated models. The linear analysis shows that the new drive system has higher gain margin, allowing a considerably more aggressive closed-loop position controller. Several benefits were experimentally confirmed, such as faster rise time, 75% shorter settling time, 61% less overshoot, 66% better position tracking, and reduction of pressure oscillations. The proposed control algorithm is also proven to be robust against load variation providing essentially the same position accuracy. In conclusion, the novel self-contained system is experimentally proven to be a valid alternative to conventional hydraulics for applications where passive load-holding is required. View Full-Text
Keywords: linear actuators; self-contained cylinders; electro-hydraulic systems; passive load-holding; proportional directional control valves; load-carrying applications; modeling and simulation; linear control design; feedback control systems; active damping linear actuators; self-contained cylinders; electro-hydraulic systems; passive load-holding; proportional directional control valves; load-carrying applications; modeling and simulation; linear control design; feedback control systems; active damping
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MDPI and ACS Style

Hagen, D.; Padovani, D.; Choux, M. A Comparison Study of a Novel Self-Contained Electro-Hydraulic Cylinder versus a Conventional Valve-Controlled Actuator—Part 1: Motion Control. Actuators 2019, 8, 79. https://doi.org/10.3390/act8040079

AMA Style

Hagen D, Padovani D, Choux M. A Comparison Study of a Novel Self-Contained Electro-Hydraulic Cylinder versus a Conventional Valve-Controlled Actuator—Part 1: Motion Control. Actuators. 2019; 8(4):79. https://doi.org/10.3390/act8040079

Chicago/Turabian Style

Hagen, Daniel, Damiano Padovani, and Martin Choux. 2019. "A Comparison Study of a Novel Self-Contained Electro-Hydraulic Cylinder versus a Conventional Valve-Controlled Actuator—Part 1: Motion Control" Actuators 8, no. 4: 79. https://doi.org/10.3390/act8040079

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