基于GA-SQP的航空发动机加速寻优控制

提出一种基于GA-SQP混合算法的加速优化控制方法。基于某型涡扇发动机模型,建立推力最大加速过程目标函数,以发动机稳定性和安全性指标作为边界条件,利用GA-SQP混合算法对发动机加速过程进行寻优求解,选取工作包线内若干个状态点进行最大推力加速过程仿真。仿真结果表明,所提出的加速燃油控制规律可以在兼顾涡轮前温度安全性和稳定性的前提下,实现发动机推力最大加速过程时间最短的目标,且控制效果良好,说明该控制算法是可行和有效的。

Optimal Control of Aeroengine Acceleration Process Based on GA-SQP

The optimal control method of aeroengine acceleration process based on GA-SQP hybrid algorithm is proposed. Based on a certain type of aeroengine model, the acceleration process objective function at maximum thrust is built, respect to the stabil- ity and safety indicators as boundary, conditions, the GA-SQP hybrid algorithm is used to seek optimum solution during accelera- tion, several state points within flight envelope are selected for simulations at maximum thrust mode. Simulation results demon- strate that the acceleration control law can minimize accelerated time at maximum thrust mode, considering both stability and safe- ty of the turbine inlet temperature, the process is perfect. As a result, the hybrid algorithm is feasible and effective.