Title :
A control approach with application to variable displacement pumps
Author :
Wang, Longke ; Book, Wayne J. ; Huggins, James D.
Author_Institution :
George W. Woodruff Sch. of Mech. Eng., Georgia Inst. of Technol., Atlanta, GA, USA
Abstract :
In this paper, we aim to use singular perturbation theory to simplify control designs for hydraulic systems and to make the designs more feasible for engineering practice. The paper presents the derivations and simulations of a control law for a hydraulic displacement controlled actuator. Analysis of applied conditions and stability proofs are provided. The developed control design procedure is simplified and is robust to variations in the bulk modulus. The proposed design is simulated and applied to cases of different control input models. Position tracking error exponentially decays and control efforts are dominated by low frequency signals.
Keywords :
control system synthesis; displacement control; error statistics; hydraulic actuators; hydraulic systems; position control; pumps; robust control; singularly perturbed systems; different control input model; hydraulic displacement controlled actuator; hydraulic system; low frequency signal; position tracking error; singular perturbation theory; stability proof; variable displacement pump; Actuators; Control design; Control systems; Displacement control; Engine cylinders; Error correction; Hydraulic systems; Mechanical variables control; Pumps; Valves;
Conference_Titel :
Advanced Intelligent Mechatronics, 2009. AIM 2009. IEEE/ASME International Conference on
Conference_Location :
Singapore
Print_ISBN :
978-1-4244-2852-6
DOI :
10.1109/AIM.2009.5229794
