Title :
Study on nonlinear PID control for electro-hydrostatic actuator
Author :
Jizhong Fan ; Dongyao Ling ; Zhiyong Tang ; Zhongcai Pei
Author_Institution :
Sch. of Autom. Sci. & Electr. Eng., Beihang Univ., Beijing, China
Abstract :
The structure and working principle of Electro-hydrostatic Actuator was analyzed in this paper. And a mathematical model based on the transfer function was given. The paper analyzed the influence of the electric motor and hydraulic section on the EHA system performance. A nonlinear block diagram model based on the Simulink was established in this paper. A nonlinear PID controller was designed. The simulation results show that the nonlinear PID controller can make the system has better dynamic characteristics than the conventional PID controller.
Keywords :
actuators; control system synthesis; diagrams; electrohydraulic control equipment; nonlinear control systems; three-term control; transfer functions; EHA system; electric motor; electrohydrostatic actuator; hydraulic section; nonlinear PID controller design; nonlinear block diagram model; transfer function; Actuators; Brushless DC motors; Mathematical model; Pistons; Transfer functions;
Conference_Titel :
Guidance, Navigation and Control Conference (CGNCC), 2014 IEEE Chinese
Conference_Location :
Yantai
Print_ISBN :
978-1-4799-4700-3
DOI :
10.1109/CGNCC.2014.7007389
