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利用线性最优调节器理论可以设计出具有良好性能指标的晶闸管直流电机控制系统。这种设计方法优于传统的“双环系统”设计。然而,求解Riccati方程的计算量相当大。为寻求最佳加权Q阵,可能耗费许多时间。采用奇异摄动法设计准最优线性系统时,可以化高阶为低阶,从而简化计算工作量。本文利用奇异摄动理论设计了一个晶闸管直流电动机系统。已肯定本法适应于此类设计。本文还比较了不同设计方法所达到的动态性能。
Using the linear optimal regulator theory can design a thyristor DC motor control system with good performance. This design method is superior to the traditional “double loop system” design. However, the computational complexity of solving the Riccati equation is quite large. To find the best weighted Q-matrix, it can take a lot of time. When singularly perturbed method is used to design quasi-optimal linear system, high-order low-order can be simplified, which simplifies the computational workload. In this paper, a thyristor DC motor system is designed using the singular perturbation theory. This Law has been affirmed to adapt to such design. This article also compares the dynamic performance achieved by different design methods.