Research Article
Neural Network Based Active Disturbance Rejection Control of a Novel Electrohydraulic Servo System for Simultaneously Balancing and Positioning by Isoactuation Configuration
Figure 4
Step response of the control system: (a) errors of position signal with square wave disturbance, (b) position tracking control voltage, (c) square wave disturbance and the estimated z4, and (d) torque errors of position tracking.
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