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时滞系统分数阶PI??极点配置控制器设计

DOI: 10.13195/j.kzyjc.2014.0269, PP. 1131-1134

Keywords: 极点配置,分数阶PI??,控制器,参数空间法,时滞系统

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Abstract:

利用参数空间法研究用PI??控制器实现时滞系统的闭环极点配置问题.复平面上的阻尼角扇形区域和相对稳定度区域(该两区域构成一个梯形区域)被映射到控制器参数平面,相应的控制器参数可以将闭环极点配置在梯形区域内,从而保证所要求的系统性能.仿真结果显示,对于适当选取的分数阶PI??控制器的参数,采用分数阶控制器可以取得比整数阶控制器更好的控制效果,从极点配置的角度揭示了分数阶控制器的优越性.

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