Robust control of pantograph-catenary system: Comparison of 1-DOF-based and 2-DOF-based control systems

被引：10

作者：

Yu, Pan ^{[1
]}

Liu, Kang-Zhi ^{[2
]}

Li, Xiaoli ^{[1
]}

Yokoyama, Makoto ^{[3
]}

机构：

[1] Beijing Univ Technol, Fac Informat Technol, Beijing Inst Artificial Intelligence, Beijing, Peoples R China

[2] Chiba Univ, Dept Elect & Elect Engn, Chiba, Japan

[3] Niigata Univ, Grad Sch Sci & Technol, Niigata, Japan

来源：

IET CONTROL THEORY AND APPLICATIONS | 2021年 / 15卷 / 18期

关键词：

DISTURBANCE-REJECTION; PERFORMANCE; UNCERTAINTY; TRACKING; DELAY;

D O I：

10.1049/cth2.12190

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

Compared to control bandwidth, low-frequency uncertainties or disturbances like step signals can be well rejected by many methods having two-degree-of-freedom (2-DOF). Due to robustness constraint, technically more challenging is the rejection of medium frequencies, especially for bandwidth-limited systems. Here, the equivalent-input-disturbance (EID) approach is extended to deal with the main medium-frequency oscillation of a pantograph-catenary system. First, a general EID estimator is developed with a low-frequency estimator as a special case. Then, a fair comparison is conducted to clarify the essential differences between the conventional 1-DOF-based and the developed 2-DOF-based control systems. Furthermore, a robust stability condition is derived for the 2-DOF-based closed-loop control system. A design algorithm together with design guidelines is provided, where the frequency characteristics of the uncertainties are utilized in the parameter design. Finally, simulations are carried out to validate the developed 2-DOF-based method for the pantograph-catenary system in realistic environment.

引用

页码：2258 / 2270

页数：13

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