부하압력 피이드백을 이용한 전기-유압 서어보계의 부하변동 보상에 관한 연구

A Study on Compensation Method for Variable Loads in Electro-Hydraulic Servomechanism Using Load Pressure feedback

The characteristics of servo systems are desired to be independent for any unpredicted operational condition. The relation between input current and output flowrate of the servovalve is dependent on the load pressure and the idea of compensation using the load pressure feedback is fundamental theory in this paper. With this idea, this paper researches the performance improvement of hydraulic position control system. Static characteristics of compensated system is analyzed by means of analog computer simulation, digital computer simulation and experiment for nonlinear model and linearized model, respectively.