| At present, the performance of the hydraulic synchronization system such as highcontrol accuracy and quick reaction speed is demanded. Using high precise controlelement, changing the style of load and installment of the executive element or adoptingsuitable control strategy can meet the requirement. This paper present a electrohydraulicdigital servo synchronization system which considers the high precised digital servovalve as the main control element in the synchronization circulation and makes use ofthe PID controller and the control strategy of"master-slave".Basing on the experiment of the electrohydraulic digital servo system, amathematic model is established. And a linear simulation of the experiment system iscarried out by using the software of MATLAB/SIMULINK, some useful results abouthow the parameter of PID controller and system structure affect the system'sperformance are get. Meanwhile its performance under two different control strategiesare compared by mean of simulation. Besides, nonlinear simulation is carried out, andmake a simple comparation with linear simulation. Simulation results show that highsynchronization oerformance can be achieved by the system. |
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