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In this paper, a novel servo turning table control method based on optimal fuzzy reasoning and disturbance observer (DOB) was studied. Optimal fuzzy reasoning contains thought of optimization and feedback, and a fuzzy-PID controller using optimal fuzzy reasoning can make the reasoning process more reasonable and enhance the robustness to some extent. However, when a large external disturbance exists...
On the basis of analyzing the mathematic model of the permanent magnet synchronous motor (PMSM), a novel approach to PMSM servo system using fuzzy active disturbance rejection controller (ADRC) is presented in this paper, which can meet the needs of rejecting the disturbance and time-vibration of parameters for the AC servo system. Modeling and simulation of the servo system are done based on MATLAB/Simulink,...
This paper presents the controller design with robust and high precision performance based on novel evolutionary algorithm. Robust fuzzy PID controller is developed with the aim to achieve precise tracking performance. Mathematical model is developed that includes LuGre dynamic friction model to accounts for main nonlinearities. The influence of controller parameters on control performance is determined...
Aiming at the rapidity control problem of direct drive electro-hydraulic (DDEH) servo rocket rudder, a design method of adaptive fuzzy sliding mode control with friction torque dynamic compensation is presented. The friction torque dynamic compensation method is introduced to enhance the response of the system. The adaptive fuzzy controller is introduced to solve the problem of the uncertain parameter...
This paper concerns the design of robust and high precision performance controller. Optimum fuzzy PID controller is developed with the aim to achieve high performance and to reduce tracking errors. Mathematical model is developed that includes a dynamic friction model to accounts for main nonlinearities. To acquire the global optimal state proposed controller is optimized by using genetic algorithm...
The paper deals with the problem of robust speed control of electrical servodrives. A robust controller is developed using a nonlinear IP controller. The controller nonlinear characteristic is obtained due to fuzzy logic technique application. An original method of controller settings adjustment is presented. The use of this adjustment procedure ensures robust speed control against the variations...
This paper deals with the problem of robust speed control of electrical servodrives. A robust controller is developed using a nonlinear PI controller. The controller nonlinear characteristics is obtained due to fuzzy logic technique application. An original method of controller settings adjustment is presented. The use of this adjustment procedure ensures robust speed control against the variations...
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