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针对航天器喷气发动机模拟式控制器中的非储能型非线性控制系统进行分析设计。以Schmitt触发器环节为例,基于描述函数法计算极限环交点,并利用系统稳态输出,得到稳态极限环特性,计算描述函数意义下极限环频率误差界,给出控制器参数整定方法。通过仿真实例验证该方法通用、有效,为工程应用提供参考。
Aiming at the non-storage type nonlinear control system in spacecraft jet engine analog controller, Taking the Schmitt trigger as an example, the limit-ring crossover is calculated based on the descriptive function method, and the steady-state limit cycle characteristic is obtained by using the steady-state output of the system. The limit-frequency error bound of the limit cycle in the description of the function is calculated and the controller tuning method is given. The simulation example shows that the method is universal and effective and provides a reference for engineering application.