Redundance control of servo actuator system

In order to enhance the reliability of servo actuator system, the triplex electrohydraulic servo actuator system with three torque motors, three jet flapper valves and three sets of feedback components was designed. the mathematical model of the system was built and effect of the redundance control on dynamic performance and dynamic performance of triplex electrohydraulic servo actuator system after failure happens were analyzed. the simulation results have shown that the redundance control greatly improves the reliability of the system, but the performance of the system is basically unchanged.