【摘要】 根据伺服系统安全设计和LVDT冗余设计原则提出了双通道低选位置反馈方式和提高伺服机构可靠性的冗余设计方案,大大减小因阀位反馈信号故障而使伺服机构误动作的可能性,从而提高伺服机构动作的可靠性。更多还原

【Abstract】 According to the design principle of safety and redundancy for DEH servo control systemt,his paper designs a low select position feedback method and an intelligent select method which can increase the reliability of servo control system.The design can avoid error action of servo actuator caused by fault access of valve position feedback value,and so the design increases the reliability of entire steam turbine DEH control system.更多还原