摘要
当供电区段内有列车进行电力再生制动时,所产生的再生电能会向牵引供电网反馈,若邻近无处于牵引状态的列车吸收此部分再生电能,则会造成牵引变电所两端的电压升高。由此提出通过检测牵引供电网第三轨电压并在牵引供电网网压升高时适当提高邻近列车运行速度,以充分利用再生电能,从而实现城轨列车的节能运行。基于此思路建立列车节能运行优化控制与牵引供电系统相配合的城轨列车节能驾驶综合模型。该模型由列车节能运行优化控制算法和牵引供电模型组成。前者为牵引供电模型提供列车运行动态信息;后者基于牵引供电系统特性生成列车运行控制最佳策略所需的数据,供列车节能运行优化控制算法使用。以北京地铁亦庄线为例,验证综合模型的可行性和有效性。结果表明:在该线4站3区间10个列车全部准点运行的情况下,采用综合模型后列车的运行能耗降低了7.18%。
Regenerative energy will feed back to traction power supply network when regenerative brake is applied to a train in power supply section.The voltage on both sides of the power supply network at traction substation will rise up if there is no adjacent train under traction absorbing the regenerative energy.It is proposed that,by detecting the voltage on the third rail and properly increasing the speed of adjacent train when the voltage of traction power supply network rises up,the regenerative energy can be fully utilized and the energy-efficient train operation can be achieved.Based on the idea above,a comprehensive model for the energy-saving train operation of urban mass transit which integrates the optimal control of energy-saving train operation and traction power supply system is established.The model is composed of the optimal control algorithm for energy-saving train operation and the model for traction power supply.The algorithm provides the dynamic information of train operation for traction power supply model.The model generates the needed data of the optimal train operation strategy for the algorithm based on the characteristics of traction power supply system.The feasibility and effectiveness of the proposed comprehensive model have been verified with the integrated simulation platform based on the field test data from Yizhuang line of Beijing metro.Under the condition that all the ten trains running through four stations and three sections on Yizhuang line are on schedule,the result shows that 7.18% of the energy consumption for train operation can be saved by the proposed comprehensive model.
出处
《中国铁道科学》
EI
CAS
CSCD
北大核心
2015年第1期104-110,共7页
China Railway Science
基金
中央高校基本科研业务费项目(2013JBM121)
国家教育部博士点专项基金资助项目(20130009120035)
北京交通大学轨道交通控制与安全国家重点实验室自主课题项目(RCS2012ZQ003和RCS2014ZT29)
关键词
节能驾驶
再生制动
列车运行优化
牵引供电
第三轨电压
城市轨道交通
Energy-saving driving
Regenerative brake
Train optimal control
Traction power supply
Voltage on third rail
Urban mass transit
