Open AccessHybrid tram energy management based on PMP
Author(s) -
Jing Wu,
Bin Zhao,
Chi Zhang,
Junfei Qiao,
Ze Yong Yin
Publication year - 2020
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1639/1/012016
Subject(s) - energy management , mathematical optimization , computer science , dynamic programming , range (aeronautics) , energy consumption , energy (signal processing) , energy storage , optimal control , power (physics) , mathematics , engineering , electrical engineering , statistics , physics , quantum mechanics , aerospace engineering
Dynamic programming is often used to solve the global optimization problem of hybrid energy storage tram. However, the amount of calculation is too large, resulting in the calculation time is too long. To solve this problem, an energy management strategy (EMS) based on Pontriagin minimum principle (PMP) is proposed. Through the analysis of Hamilton function, the optimal control path is obtained by solving the minimum value each time. The global optimization problem is changed into instantaneity, and the calculation speed is fast. The simulation results show that the energy management strategy based on PMP can ensure the normal operation of tram. Keep the bus voltage of hybrid energy storage tram within a reasonable range. Compared with the energy management method based on rule control, the power consumption is reduced by 9%.