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就精确反馈线性化中状态反馈形式复杂、不便工程实现,且要求对系统状态进行测量的局限,设计了一种简便状态反馈控制律生成方法,即根据系统工作平衡点的状态值来对精确状态反馈形式进行适当简化而得到。该方法无需对状态进行测量,从而大大降低了工程实现的难度并免去相关测试设备成本。为某减摇鳍系统非线性控制系统设计了一组简便状态反馈控制律,并分别对该系统在有无海浪干扰情况下的减摇稳定性能进行仿真。结果表明该简便状态反馈控制律获得满意效果,也反映了该方法良好的工程实用价值。
In order to overcome the limitation of state feedback in complex linear feedback system, which is inconvenient to implement and require the measurement of system state, a simple method for generating state feedback control law is designed. According to the state value of system equilibrium point, The feedback form is properly simplified. The method does not need to measure the state, thus greatly reducing the difficulty of engineering and eliminating the cost of related test equipment. A set of simple state feedback control laws for the nonlinear control system of a finned fin system is designed. The stability of the system in the presence or absence of ocean wave disturbance is simulated. The results show that the simple state feedback control law is satisfactory, and also reflects the good practical value of this method.