Abstract
To ensure safe and stable dragging operations of engineering equipments under the complex sea conditions as well as realizing the quick response and precise control of constant tension winch, the design of the hydraulic control system for constant tension winch regards constant tension winch as research objects coupled with a combination of PDF control (pseudo differential control) algorithm. By establishing the PDF mathematical model of hydraulic control scheme, calculateing the appropriate PDF controller parameters and using sumlink simulation analysis. It is safe to draw a conclusion that the PDF based control algorithm of constant tension control system bears a good dynamic response characteristics and robustness to meet control requirements of constant tension winch in operation under complex sea conditions, in order to provide a reference for further research and development of the constant tension control technology.
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