航空发动机线性二次型最优控制

随着控制变量的增多,航空发动机已由单变量对象发展为多变量对象。在多变量反馈控制系统设计方法中,线性二次型最优控制方法由于具有无穷大的幅值裕度和大于60°的相位裕度而倍受人们的关注。在Matlab下以建立的模型作为被控对象,针对发动机在飞行包线范围内动态参数变化大、不确定因素显著的情况,提出了一种基于优化理论的最优控制方法。设计出的LQR控制器具有性能优良、控制能量合理的优点。通过线性仿真和非线性硬件在回路模拟试验,均验证了按此方法设计的控制器具有良好的性能。

Linear Quadratic Optimal Control for Aeroengine

With the increase of the control variables,the aero-engine has been the object of a single variable to multivariable in multivariable feedback control system design method.The linear quadratic optimal control method is presented due to the infinite gain margin and greater than 60 ° phase margin and much attention.In Matlab to create a model of controlled object,for engine dynamic parameters within the flight envelope changes,significant uncertainties,an optimal control method based on optimization theory,design of the LQR controllers with excellent performance,reasonable control energy advantages;linear simulation and nonlinear hardware in the loop simulation are verified by this method designed controller has good performance.