【摘要】 针对常规遗传算法收敛速度慢、易于早熟、局部寻优能力差等缺点,设计了一种混合遗传算法,即在全局搜索的遗传算法中引入局部搜索的单纯形算法,并将其应用于PID参数寻优。仿真结果表明,此混合遗传算法寻优设计的PID控制器可以有效地提高寻优精度和收敛速度,具有很好的动态品质和稳定性。更多还原

【Abstract】 Amixture genetic algorithm,which is a mixture of simplex method and genetic algorithm,is proposed to the problem of the parameter optimization of PID controller.It can be overcome the disadvantages of slow-convergence,easy-premature and flaw of optimization in the local area with the traditional genetic algorithm.The simulation results showed it can effectively improve the precision of the optimization and search speed,and is of good dynamic quality and stability.更多还原