Hierarchical control architectures are a common approach when hydraulic systems are under study. This paper presents the application of a model-based control structure called Embedded Model Control (EMC) when a hierarchical scheme is implemented on an electro-hydraulic proportional valve. The overall control consists of two hierarchical loops: the inner loop is the solenoid current regulator with a closed loop bandwidth close to 1 kHz. The outer loop is a position tracking control, in charge of the accurate positioning of the spool with respect to valve openings. The paper addresses the outer loop, i.e., the tracking of mechanical spool position by using the EMC. Analysis and synthesis are presented as well as experimental results obtained from a test rig provided by a industrial manufacturer.
Hierarchical Embedded Model Control for Proportional Electro-Hydraulic Valves / Acuna Bravo, W; Canuto, Enrico. - ELETTRONICO. - (2015), pp. 3596-3601. (Intervento presentato al convegno 14th European Control Conference 2015 tenutosi a Linz, Austria nel July 15 to 17, 2015).
Hierarchical Embedded Model Control for Proportional Electro-Hydraulic Valves
CANUTO, Enrico
2015
Abstract
Hierarchical control architectures are a common approach when hydraulic systems are under study. This paper presents the application of a model-based control structure called Embedded Model Control (EMC) when a hierarchical scheme is implemented on an electro-hydraulic proportional valve. The overall control consists of two hierarchical loops: the inner loop is the solenoid current regulator with a closed loop bandwidth close to 1 kHz. The outer loop is a position tracking control, in charge of the accurate positioning of the spool with respect to valve openings. The paper addresses the outer loop, i.e., the tracking of mechanical spool position by using the EMC. Analysis and synthesis are presented as well as experimental results obtained from a test rig provided by a industrial manufacturer.Pubblicazioni consigliate
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https://hdl.handle.net/11583/2593568
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