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基于遗传模糊PID的液压AGC控制系统研究
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Research on Hydraulic AGC System Based on GA Fuzzy PID Algorithm
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    摘要:

    液压AGC系统是一个多变量、非线性、强耦合、时变的复杂控制系统,常规的控制方法很难达到较好的控制效果,而采用将现代控制方法和智能算法相结合的控制策略已经成为一种趋势。PID控制是被证实行之有效的控制方法,针对其3个参数不能自调整问题,提出了模糊PID控制策略;针对模糊控制存在人为确定隶属度且不能动态调整参数的弊端,提出了用改进的遗传算法进行参数寻优的办法。仿真结果表明:基于改进遗传算法的模糊PID控制器性能更优。

    Abstract:

    Hydraulic AGC is a complex control system with multivariable, nonlinear, strong coupling and timevarying. The conventional control method is difficult to achieve good control effect. The control strategy combining modern control method and intelligent algorithm has become a trend. PID is a kind of control method which is confirmed to be effective. According to the problem that three parameters could not self adjusted, the strategy of fuzzy PID control was put forward. According to the disadvantages that the membership functions of fuzzy control were determined by experience and the parameters could not adjusted dynamically, the method that optimizing parameters by improved genetic algorithm was presented. The simulation results show fuzzy PID controller based on the improved genetic algorithm has a better performance.

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李绍铭,徐龙淞,杨帆.基于遗传模糊PID的液压AGC控制系统研究[J].机床与液压,2015,43(10):127-131.
. Research on Hydraulic AGC System Based on GA Fuzzy PID Algorithm[J]. Machine Tool & Hydraulics,2015,43(10):127-131

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  • 在线发布日期: 2015-11-11
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