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首頁> 外文會議>Control System, Computing and Engineering (ICCSCE), 2011 IEEE International Conference on >Design of Fractional Order PI controller for liquid level control of spherical tank modeled as Fractional Order System
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Design of Fractional Order PI controller for liquid level control of spherical tank modeled as Fractional Order System

機(jī)譯:分?jǐn)?shù)階系統(tǒng)建模的球罐液位控制分?jǐn)?shù)階PI控制器的設(shè)計(jì)

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In this paper, Fractional Order Proportional Integral (FOPI) controller is designed for a liquid level control in a spherical tank which is modeled as a Fractional Order System (FOS). The performance of FOPI controller is compared with the traditional Integer Order PID (IOPID) controller designed for the same spherical tank which is modeled as a First Order Plus Dead Time (FOPDT) system in simulation and with the Integer Order PI (IOPI) controller in experimental setup. The FOPI controller is designed following a set of imposed tuning constraints, which can guarantee the desired control performance and the robustness to the loop gain variations. This design scheme offers a practical and systematic way of the controllers design for the considered class of fractional order plant. The integer order controller is tuned based on Ziegler-Nichols (ZN) tuning method. From the simulation and experimental results presented, it is observed that the designed fractional order controller works efficiently, with improved performance comparing with the integer order controller.
機(jī)譯:在本文中,分?jǐn)?shù)階比例積分(FOPI)控制器是為球形罐中的液位控制而設(shè)計(jì)的,該控制器以分?jǐn)?shù)階系統(tǒng)(FOS)建模。將FOPI控制器的性能與為同一球形儲罐設(shè)計(jì)的傳統(tǒng)Integer Order PID(IOPID)控制器進(jìn)行了比較,該控制器在仿真中被建模為First Order Plus Dead Time(FOPDT)系統(tǒng),并與Integer Order PI(IOPI)控制器進(jìn)行了比較。實(shí)驗(yàn)裝置。 FOPI控制器是根據(jù)一組施加的調(diào)整約束而設(shè)計(jì)的,這可以保證所需的控制性能和環(huán)路增益變化的魯棒性。該設(shè)計(jì)方案為考慮的分?jǐn)?shù)階工廠類別提供了一種實(shí)用且系統(tǒng)的控制器設(shè)計(jì)方法?;赯iegler-Nichols(ZN)調(diào)整方法對整數(shù)階控制器進(jìn)行調(diào)整。從給出的仿真和實(shí)驗(yàn)結(jié)果可以看出,所設(shè)計(jì)的分?jǐn)?shù)階控制器有效地工作,與整數(shù)階控制器相比,性能得到了改善。

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