多输入线性系统,由于执行器饱和环节的介入,系统运行过程中存在非线性环节,给系统带来一系列不稳定因素,甚至是系统失稳。针对该类系统,通过引入饱和度函数,将其转化为范数有界不确定模型,并在恒稳椭球的基础上,给出使系统二次稳定的简洁判据。最后通过仿真演示,证明了该方法的有效性。 Due to the involvement of actuator saturation, there are nonlinearities in the operation of the system due to the multi-input linear system, which brings a series of instability factors to the system and even the instability of the system. For such systems, by introducing the saturation function, it is transformed into a norm-bounded uncertain model. On the basis of the stationary ellipsoid, a simple criterion for making the system quadratic stable is given. Finally, the simulation demonstrates that the method is effective.