中文摘要：

利用Simulink仿真工具建立直流伺服电动机三环（电流、速度、位置）控制系统模型。依照传统PID参数整定方案,获得三环调节器控制参数。根据遗传算法的选择和遗传机制,编写Matlab优化仿真程序,并与Simulink联合仿真。对几种自动控制系统常用优化目标函数获得的仿真结果进行评价。通过实际系统测试,验证理论推导的正确性。仿真及实验结果证明了遗传算法在PID参数优化中的有效性。

英文摘要：

Establish the DC servo motor third - ring （ current, speed, position） control system model by Simulink simulation tool. According to the traditional PID parameter tuning programs, accessing control parameters of each regulator. Write a Matlab optimization simulation program, and asso- ciated with Simulink simulation based on the selection and genetic mechanism of genetic algorithm. In the last part, the simulation results of several commonly used target functions for auto- matic control system is evaluated. The actual system test proves the correctness of the theory. The simulation and experimental results demonstrate the effectiveness of the genetic algorithm in PID parameter optimization.