基于MLD-MPC的快速路出口与辅路协调控制
发布时间：2018-08-14 09:09
【摘要】：城市交通信号控制系统是典型的混杂控制系统。针对当前大中城市普遍存在的快速路出口匝道、辅路及下游交叉口的信号协调控制问题,研究了一种多信号自适应控制方法,以保证出口匝道排队长度较小且下游交叉口排队不溢流。首先,基于车道路段当量排队长度建立状态方程,分别选取出口匝道、辅路交叉口和下游交叉口排队长度为连续状态变量,信号灯切换信号为离散控制变量;其次,以有限排队长度为模型约束,建立了包含快速路出口匝道、辅路及下游交叉口排队长度和信号状态的混合逻辑动态MLD模型;然后,比较研究了快速路出口匝道有信号灯控、无信号灯控两种不同情况下的MPC模型预测控制方法。仿真结果表明,基于MLD-MPC的控制方法可解决快速路出口匝道与辅路及下游交叉口的多交叉口信号协调控制问题。
[Abstract]:Urban traffic signal control system is a typical hybrid control system. Aiming at the problem of signal coordination control of exit ramps, auxiliary roads and downstream intersections in large and medium-sized cities, a multi-signal adaptive control method is studied. In order to ensure that the exit ramp queue length is small and the downstream intersection queue does not overflow. Firstly, based on the equivalent queue length of lane section, the state equation is established, and the queue length of exit ramp, auxiliary road intersection and downstream intersection is selected as continuous state variable, and the signal switching signal is discrete control variable. Taking finite queue length as model constraint, a hybrid logic dynamic MLD model including the queue length and signal state of expressway exit ramp, auxiliary road and downstream intersection is established, and then the signal lamp control of expressway exit ramp is compared. The predictive control method of MPC model in two different cases without signal lamp control. The simulation results show that the control method based on MLD-MPC can solve the problem of signal coordination between the exit ramp of expressway and the auxiliary and downstream intersections.
【作者单位】： 北方工业大学自动化系;
【基金】：国家自然科学基金项目(61174116) 国家863高技术研究计划(2012AA112401) 北京市教委科研计划项目(PXM2013_014212_000031,000029,000028,KM20111009011) 北京市属高等学校高层次人才引进与培养计划项目(CIT&TCD201304002)
【分类号】：U491.54;TP273
，
本文编号：2182378
[Abstract]:Urban traffic signal control system is a typical hybrid control system. Aiming at the problem of signal coordination control of exit ramps, auxiliary roads and downstream intersections in large and medium-sized cities, a multi-signal adaptive control method is studied. In order to ensure that the exit ramp queue length is small and the downstream intersection queue does not overflow. Firstly, based on the equivalent queue length of lane section, the state equation is established, and the queue length of exit ramp, auxiliary road intersection and downstream intersection is selected as continuous state variable, and the signal switching signal is discrete control variable. Taking finite queue length as model constraint, a hybrid logic dynamic MLD model including the queue length and signal state of expressway exit ramp, auxiliary road and downstream intersection is established, and then the signal lamp control of expressway exit ramp is compared. The predictive control method of MPC model in two different cases without signal lamp control. The simulation results show that the control method based on MLD-MPC can solve the problem of signal coordination between the exit ramp of expressway and the auxiliary and downstream intersections.
【作者单位】： 北方工业大学自动化系;
【基金】：国家自然科学基金项目(61174116) 国家863高技术研究计划(2012AA112401) 北京市教委科研计划项目(PXM2013_014212_000031,000029,000028,KM20111009011) 北京市属高等学校高层次人才引进与培养计划项目(CIT&TCD201304002)
【分类号】：U491.54;TP273
，
本文编号：2182378
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