Rapid hybrid modeling and nonlinear robust control for hydraulic system

In order to simplify the modeling procedure of a hydraulic system, we take advantages of bond graph and circuit network. First, the bond graph of hydraulic system is drawn and then transformed into its equivalent circuit diagram. Then, the transfer function of the system could be directly written wi...

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Bibliographic Details
Main Authors: Zhou, Tao, Zhang, Xian-ku
Format: Conference Proceeding
Language:English
Subjects:
bond graph
circuit network method
Equivalent circuits
hydraulic system
Hydraulic systems
Integrated circuit modeling
Mathematical model
modeling
nonlinear feedback
Perturbation methods
Robust control
Simulation
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Summary:In order to simplify the modeling procedure of a hydraulic system, we take advantages of bond graph and circuit network. First, the bond graph of hydraulic system is drawn and then transformed into its equivalent circuit diagram. Then, the transfer function of the system could be directly written with circuit network modeling method. Finally, in order to achieve the expected value of the system quickly, this paper adopts the nonlinear feedback and closed-loop gain shaping algorithm to design the robust controller for the model. Simulation results show that the controller has a satisfactory robustness and the methods of building model and the designed controller are effective with obvious energy-saving performance.
ISSN:1948-9447
DOI:10.1109/CCDC.2019.8833025