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针对航空发动机高、低压转速和压比的控制回路,研究满足幅值裕度和相角裕度要求的比例-积分(PI)控制参数稳定域确定方法.根据系统在频域的稳定域解析模型,建立考虑PI控制器的系统参数频域稳定域图形.根据典型的动态性能指标和鲁棒性指标定义的优化目标函数,在所得到的控制参数稳定域中寻找到一组最优的PI控制参数.该方法应用于航空发动机高、低压转速和压比回路控制器参数设计中,设计了不同状态下的PI控制器,仿真结果表明,这种整定方法能够使闭环系统满足性能指标和鲁棒性.
A control loop of proportional-integral (PI) control parameters that satisfies the requirements of amplitude margin and phase margin is studied for the control loop of aero-engine high and low pressure speed and pressure ratio.Based on the stability analysis of the system in the frequency domain , And establish the frequency-domain stable domain graph which takes into account the system parameters of PI controller.According to the optimal objective function defined by the typical dynamic performance index and the robustness index, a set of optimal PI control is found in the obtained control parameter stability domain This method is applied to the parameter design of aero-engine loop controller with high, low pressure and pressure ratio. The PI controller under different states is designed. The simulation results show that this method can make closed-loop system satisfy the performance index and robustness Sex.