Abstract
In order to suppress the friction and leakage interference of continuous rotary electro-hydraulic servo motor, make the motor tracking the periodic signals with high accuracy, and improve the high frequency response performance of continuous rotary electro-hydraulic servo motor, this paper established the mathematic model of the electro-hydraulic position servo system of the continuous rotary motor, and adopted the controlling method based on the zero phase error tracking controller to suppress the interference. Through the simulation, the result confirms that the zero phase error tracking control method decreases the tracking error of the system, increases the robust performance of the system and improves the frequency response performance of continuous rotary electro-hydraulic servo motor. This method is simple and feasible.
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