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access icon openaccess Dynamic characteristics analysis and dual motor synchronous control of hydraulic lifting system for large cranes

The hydraulic lifting system is the key part of the crane. A sliding mode control method based on the cerebella neural network is proposed to solve the problem that the robustness of the traditional control method is poor in view of the problem of the synchronous error of the double motor in the lifting process of the crane. On the basis of the master and slave control, the outlet pressure of the hydraulic pump and the angle of the hook are simulated as the control index. Finally, the experimental study is carried out on the lifting condition. The results show that, compared with the traditional method, the proposed control strategy can effectively improve the synchronisation control precision of two motors, strong anti-interference ability and good robust performance.

http://iet.metastore.ingenta.com/content/journals/10.1049/joe.2018.9001
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content/journals/10.1049/joe.2018.9001
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