PID control is one of the most common control method used for process control and fractional-order PIÃÂÿDÃÂàcontrol that is the promotion and development of general integer-order PID control. Compared to integer-order PID controller, fractional-order PIÃÂÿDÃÂàcontroller has more advantages that integer-order PID controller does not have, but the tuning method of fractional-order PID control is still a topic to be resolved, and it is rarely studied so far. In this paper, based on filtering algorithms and adopting the Matlab/Simulink software, a new method to effectively solve optimization problem of function is proposed, that is, on the basis of multi-parent crossover evolutionary optimization algorithm and by introduction of the elite-preservation strategy to enhance the selection pressure of parents in the process of crossover, the elite multi-parent crossover evolutionary optimization algorithm is constructed and the program EMPCOA1.0 is developed for the optimization of parameters tuning. Simulation results show that it is an effective tuning strategy, it also can be seen that better control quality can be achieved by using fractional-order PIÃÂÿDÃÂàcontroller for nonlinear systems.
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机译:PID控制是用于过程控制和分数阶PI的最常见控制方法之一。控制,即一般整数阶PID控制的促进和发展。相较于整数阶PID控制器,分数阶PI ÂÂ, sup> D àsup>控制器具有比整数阶PID控制器更多的优势。阶PID控制器虽然没有,但是微分阶PID控制的整定方法仍然是一个有待解决的课题,迄今为止很少进行研究。本文在滤波算法的基础上,采用Matlab / Simulink软件,提出了一种有效解决函数优化问题的新方法,即在多父母交叉进化优化算法的基础上,引入精英算法。保留策略以提高交叉过程中父母的选择压力,构建了精英多亲交叉进化优化算法,并开发了EMPCOA1.0程序进行参数优化。仿真结果表明,这是一种有效的调节策略,也可以看出,通过使用分数阶PI ÃÂ,¢Â, sup> D Ã可以实现更好的控制质量。用于非线性系统的ƒ sup>控制器。
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