Optimal Energy-Efficient Operation of a Metro Train on a Long and Steep Downhill Segment  

作　　者：Deqiang He Hanqing Jian Yanjun Chen Jian Miao Zhixiao Luo Chonghui Ren Lang Zhang 

机构地区：[1]the department of State Key Laboratory of Featured Metal Materials and Life-cycle Safety for Composite Structures,Guangxi Key Laboratory of Manufacturing System&Advanced Manufacturing Technology,School of Mechanical Engineering,Guangxi University,Nanning 530004,China [2]the department of Guangxi Police College,Nanning 530028,China. [3]the department of Nanning Rail Transit Co.,Ltd.,Nanning 530029,China

出　　处：《CSEE Journal of Power and Energy Systems》2023年第6期2356-2365,共10页中国电机工程学会电力与能源系统学报（英文）

基　　金：the National Natural Science Foundation of China(52072081);the Key Project of Science and Technology of Guangxi(2023AA19005);Guangxi Manufacturing Systems and Advanced Manufacturing Technology Key Laboratory Director Fund(22-050-44-S015).

摘　　要：Because the standard four-stage operation and con-trol strategy cannot fully utilize the gravitational potential energy of a train operating on a long and steep downhill segment,this paper further improves the method for train operation and control strategy.The improved operation includes three stages of acceleration,coasting-speed limit cruising,and brak-ing.Taking the speed limit,time limit,and distance limit as the constraints,the coasting condition switching point,braking condition switching point,traction coefficient,and braking force coefficient are used as the decision variables.Then,an improved train traction energy consumption model is constructed,and an improved differential evolution algorithm is designed to solve this model.The improved method is used to simulate two long and steep downhill segments of the Nanning metro.The results show that the improved method can meet the requirements of speed limit,time limit,and distance limit.Compared with the standard four-stage operation,the improved train operation and control strategy can reduce train energy consumption by more than 40%on the two long and steep downhill segments;compared with other similar algorithms,the improved algorithm is more suitable for solving the model.

关 键 词：Energy-efficient operation improved differential evolution algorithm long and steep downhill segment metro train 

分 类 号：O17[理学—数学]