涡桨发动机发螺一体化起飞推力优化控制

针对涡桨发动机对起飞阶段的快速响应需求，提出一种发螺一体化控制架构，通过油门杆综合燃油回路和桨距回路，提高系统动态响应。根据螺旋桨特性，设计起飞阶段推力优化控制策略，通过空速调度最大有效起飞功率，从而提升起飞阶段推力响应。仿真结果表明:这种发螺一体化起飞推力优化控制策略使得涡桨发动机起飞加速段推力平均增加2.59%，发动机加速到起飞响应时间小于2.5 s，有效提升了涡桨飞机的快速响应。 

Optimal control of thrust for turboprop with engine and propeller integration during takeoff

An engine and propeller integrated control architecture was proposed for turboprop engine rapid response during takeoff.Throttle lever was used to schedule the fuel control loop and pitch control loop for fast system response.A optimal control strategy for thrust was developed at the very beginning of the takeoff in order to maximize thrust according to the property of propeller.Air speed was selected to schedule the maximum effective power to improve thrust response during takeoff.The simulated result showed that the thrust increased by 2.59% in average during takeoff，and the time accelerated to takeoff was less than 2.5 s by the proposed optimal takeoff thrust control strategy and integrated control architecture.The system dynamic response was enhanced effectively by the designed method.