| 一种改进的自动化高速公路交通流速度控制器设计 |
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| 引用本文： | 杨旭华,董颖颖,杨海东,王万良.一种改进的自动化高速公路交通流速度控制器设计[J].控制理论与应用,2009,26(1):103-106. |
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| 作者姓名： | 杨旭华 董颖颖 杨海东 王万良 |
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| 作者单位： | 1. 浙江工业大学信息工程学院,浙江,杭州,310032;浙江大学,工业控制技术国家重点实验室,浙江,杭州,310027
2. 浙江工业大学信息工程学院,浙江,杭州,310032 |
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| 基金项目： | 国家自然科学基金资助项目(60504027, 60874080); 中国博士后科学基金资助项目(20060401037). |
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| 摘 要： | 在自动化高速公路的环境下, 针对一种基于非线性积分器Backstepping方法的交通流密度控制器, 本文提出一种改进的交通流速度控制器设计方法, 选取交通流速度为被控变量, 并采用Backstepping方法进行控制器的设计, 保证使每个路段的交通流速度以指数形式快速收敛到期望值. 与已有的方法相比较, 该控制器极大地提高了算法效率, 而且无需矩阵的逆运算, 可以自动满足系统的可控性条件. 仿真结果显示该控制器可以有效地减少道路拥塞, 有助于在拥堵的高速公路上实现平滑的交通流.
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| 关 键 词： | 自动化高速公路 速度控制器 指数收敛 |
| 收稿时间： | 2007/5/21 0:00:00 |
| 修稿时间： | 2008/5/15 0:00:00 |
An improved traffic flow-speed control design for an automated highway system |
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| YANG Xu-hu,DONG Ying-ying,YANG Hai-dong and WANG Wan-liang.An improved traffic flow-speed control design for an automated highway system[J].Control Theory & Applications,2009,26(1):103-106. |
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| Authors: | YANG Xu-hu DONG Ying-ying YANG Hai-dong and WANG Wan-liang |
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| Affiliation: | College of Information Engineering, Zhejiang University of Technology, Hangzhou Zhejiang 310032, China; State Key Laboratory of Industrial Control Technology, Zhejiang University, Hangzhou Zhejiang 310027, China;College of Information Engineering, Zhejiang University of Technology, Hangzhou Zhejiang 310032, China;College of Information Engineering, Zhejiang University of Technology, Hangzhou Zhejiang 310032, China;College of Information Engineering, Zhejiang University of Technology, Hangzhou Zhejiang 310032, China |
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| Abstract: | On the basis of the traffic density control design by using the nonlinear integrator-Backstepping method, thismpaper proposes an improved method for designing the traffic flow-speed control by selecting the traffic flow-speed as the controlled variable and applying the Backstepping method to design the controller for an automated highway system. The controller guarantees the traffic flow-speed at each section to be exponentially convergent to the desired speed. Comparing with the prior methods, this controller is superior in algorithm-efficiency, being free from matrix inversion, and automatically satisfying the controllability condition. Simulations show that this controller effectively reduces the congestion and helps to achieve a smooth traffic flow on a congested highway. |
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| Keywords: | Backstepping |
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