Trip-oriented stochastic optimal energy management strategy for plug-in hybrid electric bus

被引:66
作者
Du, Yongchang [1 ]
Zhao, Yue [1 ]
Wang, Qinpu [2 ]
Zhang, Yuanbo [1 ]
Xia, Huaicheng [3 ]
机构
[1] Tsinghua Univ, State Key Lab Automot Safety & Energy, Beijing 100084, Peoples R China
[2] Zhongtong Bus Hold Co Ltd, Liaocheng 252000, Shandong, Peoples R China
[3] YanShan Univ, Qinhuangdao 066000, Hebei, Peoples R China
基金
中国国家自然科学基金; 中国博士后科学基金;
关键词
Plug-in hybrid electric bus; Energy management; Markov chain; Stochastic dynamic programming; Equivalent consumption minimization strategy; POWER MANAGEMENT; BATTERY; OPTIMIZATION; ALGORITHM; VEHICLES; STATE; MODEL; SYSTEM; ECMS;
D O I
10.1016/j.energy.2016.09.056
中图分类号
O414.1 [热力学];
学科分类号
摘要
A trip-oriented stochastic optimal energy management strategy for plug-in hybrid electric bus is presented in this paper, which includes the offline stochastic dynamic programming part and the online implementation part performed by equivalent consumption minimization strategy. In the offline part, historical driving cycles of the fixed route are divided into segments according to the position of bus stops, and then a segment-based stochastic driving condition model based on Markov chain is built. With the segment-based stochastic model obtained, the control set for real-time implemented equivalent consumption minimization strategy can be achieved by solving the offline stochastic dynamic programming problem. Results of stochastic dynamic programming are converted into a 3-dimensional lookup table of parameters for online implemented equivalent consumption minimization strategy. The proposed strategy is verified by both simulation and hardware-in-loop test of real-world driving cycle on an urban bus route. Simulation results show that the proposed method outperforms both the well-tuned equivalent consumption minimization strategy and the rule-based strategy in terms of fuel economy, and even proved to be close to the optimal result obtained by dynamic programming. Furthermore, the practical application potential of the proposed control method was proved by hardware-in-loop test. (C) 2016 Elsevier Ltd. All rights reserved.
引用
收藏
页码:1259 / 1271
页数:13
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