SQP方法在航空发动机加速过程控制中的应用研究

本文研究了采用非线性规划方法中的序列二次规划最优化方法解决涡轮风扇发动机加速过程的最优控制问题。在研究中，考虑了发动机加速过程中的压气机喘振边界、涡轮最高温度限制、转子最高转速限制、燃烧富油熄火限制等各种约束条件，以及执行机构的惯性、延迟等机械特性。仿真结果表明：应用序列二次规划法进行加速最优控制是可行的，发动机在加速过程中能准确地沿着各约束边界进行加速，从而充分发挥了发动机的潜力，大大地改善了发动机的加速性。

APPLICATION OF SQP TO ACCELERATION CONTROL OF TURBOFAN ENGINE

The optimal control for turbofan engine acceleration control has been investigated.The optimal method used in this paper is Sequential Quadratic Programming(SQP),one of the most successful methods for solving nonlinear constrained problem.Many limits in the process of engine acceleration have been studied such as compressor surge margin,overtemperature limit,overspeed limit,rich extinction in combustor,the maximum fuel flow and limit of the actuator property.The results of simulation show that SQP method is suitable and feasible in solving the problem of aero-engine acceleration control;the engine potentialities are brought into full play and the engine acceleration performance is improved greatly.