改进FSQP算法的涡扇发动机多变量非线性控制

Application of improved FSQP algorithm to turbofan engine multivariable nonlinear control

关键词:  涡轮风扇发动机  多变量非线性控制+  多目标规划  数值仿真

Key words:  Turbofan engine  Multivariable nonlinear control  Multi-objective programminh  Numerical simulation

摘要:

涡扇发动机是一个复杂的非线性系统, 用常规的多变量控制方法难以获得理想的控制效果。对FSQP(FeasibleSequentialQuadraticProgramming) 算法进行了改进, 提出了一种基于改进FSQP算法和自适应变权重线性加权法的多目标优化算法。该算法可以有效的解决涡扇发动机的多变量非线性控制问题, 同时在满足控制过程中的各项约束条件的前提下, 达到调节时间最短的目标。通过计算机仿真证明了该控制算法的可行性和良好的控制效果。

Abstract:

The turbofan engine is a complex nonlinear system. The traditional multivariable control method, when used to control turbofan engine that is not very satisfactory. The FSQP algorithm is improved in this paper. A multi-objective optimal algorithm based on improved FSQP algorithm and adaptive linearity weights method is presented. By using this method, the problem of multivariable nonlinear control for turbofan engine can be solved effectively, and the optimal adjusting time will be achieved simultaneously. During the control process, each constraint is always satisfied. Finally, the simulation results indicate this control algorithm’s feasibility and better performance.