Application of Active Disturbance Rejection Control technology to extraneous force elimination

Extraneous force elimination is a hot research issue in electro-hydraulic load simulator system. Structure and mathematical model of electro-hydraulic load simulator system was constructed. According to the characteristic of the electro-hydraulic load simulator system two control strategies were presented. One was the control strategy based on Active Disturbance Rejection Control (ADRC) technology. Another was the composite control strategy based on ADRC technology and speed synchronization feedback correction. Through the co-simulation of AMESim and Matlab, a good result about extraneous force elimination was achieved. It is a beneficial attempt to the electro-hydraulic load simulator system to eliminate extraneous force.