针对一类有限维多输入多输出线性时不变系统,提出了一种新的调节输出通道幅值/相角裕度的方法。该方法采用离散线性二次调节器理论设计静态通用采样保持函数控制器,可同时在系统所有反馈控制回路的输出通道实现任意大的幅值裕度和直到90°的相角裕度,且控制器形式简单、易于实现。仿真结果表明了该方法的有效性。
For the finite-dimensional Multi-Input-Multi-Output (MIMO) Linear Time-Invariant (LTI) plant, a new method for tuning gain/phase margins in the output channels was presented. The method used the theory of discrete-time Linear Quadratic Regulator (LQR) to design static Generalized Sampled-Data Hold Function (GSHF) controller, and could provide gain margins as large as desired and phase margins of up to 90 degrees in the output channels of all feedback control loops. It is convenient to apply for its simple form. Simulation results show the effectiveness of the method.