基于复杂网络牵制同步的高速公路融合控制  

Integrated control of freeway based on pinning synchronization of complex networks

作　　者：庞明宝 赵冰心 PANG Mingbao;ZHAO Bingxin(School of Civil Engineering and Transportation,Hebei University of Technology,Tianjin 300401,China)

机构地区：[1]河北工业大学土木与交通学院,天津300401

出　　处：《系统工程理论与实践》2021年第4期1018-1024,共7页Systems Engineering-Theory & Practice

基　　金：国家自然科学基金(50478088);河北省自然科学基金(E2015202266)。

摘　　要：研究采用复杂网络牵制同步方法的高速公路主线和多匝道融合协调控制.建立速度限制下高速公路各路段改进元胞传输模型,在此基础上定义各节点并建立节点耦合模型,基于复杂网络牵制同步方法设计主线和匝道融合的协调控制器,其中牵制节点对应施加协调控制信号的子系统.设计的控制器以总旅行时间为指标,依据预测模块优化限速值;以牵制同步为目标,依据系统稳定性条件,取得控制信号施加范围和优化的匝道调节参数.通过仿真实验予以验证,结果表明,依据本方法设计的控制器可综合速度限制和流量控制的优缺点,利用交通流时空分布不均衡的特点,以最佳控制方式和范围代价达到最大限度抑制交通拥堵提高道路通行效率的目的.The coordinated control of integrating variable speed limits(VSL)and multi-ramps metering for freeway based on pining synchronization of complex networks was studied.The improved cell transmission model of each segment under VSL on a freeway was established.Then each node was defined and a node coupling model was established.The coordinated controller of integrating VSL and ramps metering was designed based on pinning synchronization of complex networks,where the pinning nodes corresponding to the subsystems are used to input control signal.Total time spent calculated by the predicting module is used as the index to optimize the speed limit value.The range of inputting control signal is obtained and the ramp metering parameters are optimized in order to realize the system synchronization using the system stability condition.The controlling effects were verified via the simulation experiments.The results indicate that the advantages and disadvantages of VSL and inflow control can be integrated and the unbalanced characteristics of traffic flow spatial-temporal distribution can be utilized using the designed controller based on the proposed method.The phenomena of traffic jams can be suppressed utmost and the operating efficiency can be enhanced at an optimized control mode and range cost.

关 键 词：高速公路 复杂网络牵制同步 主线限速和多匝道调节融合 元胞传输模型 协调控制 

分 类 号：U491.4[交通运输工程—交通运输规划与管理] TP273.1[交通运输工程—道路与铁道工程]