Operation characteristics and methods of the hydraulic power take-off system. (January 2021)

• Record Type: Journal Article
• Authors: Chen, Qijuan; Yan, Donglin; Zheng, Yang; Yue, Xuhui; Geng, Dazhou
• Other Names: Li Kang guest-editor.
• Is Part Of: Transactions of the Institute of Measurement and Control. Volume 43:Number 1(2021)
• Page Start: 137
• Page End: 150
• Publication Date: 2021-01
• Subjects: Power take-off -- wave energy -- rotational speed control -- operation mode; Automatic control -- Periodicals; Measuring instruments -- Periodicals; Commande automatique -- Périodiques; Mesure -- Instruments -- Périodiques; 681.2
• DOI: 10.1177/0142331220934352
• Languages: English
• ISSNs: 0142-3312

Abstract

The power take-off system plays a vital role in the wave energy generating unit. Here, for studying the operation characteristics and methods of the hydraulic power take-off system, its basic model is built relying on the operating principles of every component. Meanwhile, a proportional–integral–derivative (PID) controller is also designed to regulate the rotational speed of the motor. Then, a test platform for the hydraulic power take-off system is constructed to verify the correctness of the model. Fortunately, based on model analyses, some useful results are found. Firstly, the PID controller has a visible effect on stabilizing the rotational speed. In addition, a group of optimal control parameters are obtained. Secondly, the influences of the displaced volume on the operation characteristics of the hydraulic power take-off system are found. Meanwhile, the optimal displaced volume is also presented by weighing the efficiency and stability. Finally, the operation modes and regions of the hydraulic power take-off system are obtained, and its rationality is also proved by a simulated running of the system. More importantly, these results can provide a reference to the design and operation of the hydraulic power take-off system.