Research on hign performance of the digital machine tools position servo system;

Research on Wind Turbine Variable Pitch System with High Accuracy Position Servo Control Technology;

A new position servo system is presented in this paper.

A positioning servo control system and strategies for the linear motors based on fuzzy hierarchical approach are studied and a fuzzy hierarchical approach adaptive PID control strategies is proposed.

The system s composition and position servo card s function is introduced.

Model identification and control method of electro-hydraulic position servo system;

Design of a DC motor position servo system using a digital controller MC9S12;

Oscillation caused by quantized feedback in position servo system;

In order to adapt the swift dynamic characteristics of linear motors and restrain influence on servo performance owing to uncertain factors of parameter diversification and load disturbance caused by the direct drive, a new smooth function is proposed and a smooth-switch fuzzy PID compound controller is designed,which is applied to the position servo control of linear motors.

In this paper,a method to control the movement of vector propeller blades is provided by using ATMega128 and FPGAthe as the control cores to achieve position servo control of blade s rotation,completing the motion of cycloid locus for variable vector propeller blades.

In the technology of hydraulic position servo control,hydraulic cylinder position servo control is mainly finished by the electro-hydraulic servo valve,which has its disadvantages such as large energy consumption and low efficiency.

The positioning servo system is controlled by a conventional feedback controller and a feedforward controller.