涡桨发动机最优加速控制研究

On Improving Control of Turboprop Engine Acceleration

研究航空涡轮螺旋桨发动机的加速过程性能寻优控制问题。为改善航空涡轮螺旋桨发动机的加速性能及动态性能,提出建立发动机和螺旋桨机构的一体化优化模型,并应用线性加权和法构造评价函数和遗传算法解多目标多变量最优化问题,在满足所有约束条件以及在保证发动机安全的前提下,达到进一步发挥发动机性能潜力的目的。仿真结果表明,提出的涡桨发动机一体化优化模型及寻优控制方法能很好地改善涡桨发动机的加速性能及动态性能,发动机具有良好的加速性。

The control problems of seeking optimum performance during the acceleration of turboprop engine are studied.In order to achieve better dynamic performance,fuel-propeller integrated engine model was built.Furthermore,linear weighted sum method was used for constructing the evaluation function,and the genetic algorithm for solving multi-object optimum problem.When applying GA method in turboprop engine acceleration,constraint functions and objective function should be established properly.The simulation results show that the proposed fuel-propeller integrated engine optimization model and GA method can give good optimal control and improve turboprop engine dynamic performance.