中文摘要：

发动机限制保护器在航空发动机运行过程中对特定的被限制量进行实时监控，在其超出安全范围时实施限制，实现对航空发动机的保护，将自抗扰技术用于限制保护控制器设计，利用自抗扰控制器的扩张观测器，动态估计未知扰动和系统特性，对实际控制量进行反馈补偿，实现超限后的快速保护，提高了发动机的安全性，仿真结果表明：所设计的自抗扰限制保护控制器能将超限偏差有效转化为对主回路指令的修正，综合控制系统响应速度快，达到了限制保护的目的。

英文摘要：

This controller is designed to monitor and control the specific variables while the aero-engine is running.It can perform engine protection if the signals exceed their maximum allowance.The active disturbance rejection control（ADRC） was proposed to design the limit protection controller.Advantage of the extended state observer was taken to estimate the model uncertainty and external interference of the system.The control signal was compensated through feedback.Fast protection was gotten when exceeding occurs,and safety was improved.Simulation results show that the ADRC limit protection controller can transmit the error of over limit to reference signal adjustment of the main loop very well.The overall control system responses quickly,and can carry the point of limit protection.