Impact of control strategy on battery degradation for a plug-in hybrid electric city bus in China. (1st December 2016)

• Record Type: Journal Article
• Authors: Cai, Y.; Yang, F.; Ouyang, MG.
• Is Part Of: Energy. Volume 116:Part 1(2016)
• Page Start: 1020
• Page End: 1030
• Publication Date: 2016-12-01
• Subjects: Plug-in hybrid electric city bus -- Series-parallel configuration -- Battery degradation -- Control strategy; Power resources -- Periodicals; Power (Mechanics) -- Periodicals; Energy consumption -- Periodicals; 333.7905
• DOI: 10.1016/j.energy.2016.09.137
• Languages: English
• ISSNs: 0360-5442

Abstract

Abstract: Series-parallel Plug-In Hybrid Electric Vehicle combine the advantages of series and parallel configurations and have been used in China. However, battery degradation in series-parallel Plug-In Hybrid Electric city bus applications still need to be investigated. In this paper, a simulation model is developed to simulate a series-parallel Plug-In Hybrid Electric city bus. The simulation model was validated experimentally and shown to agree well with the real system. Additionally, a semi-empirical battery life model was also developed and validated to estimate the battery degradation. According to the simulation model and battery life model, the impact of different control strategies for series-parallel Plug-In Hybrid Electric city buses on battery degradation was investigated. The simulation results showed that series-parallel Plug-In Hybrid Electric city buses with the Maximum Efficiency Control Strategy for series mode and Power Follower Control Strategy for parallel mode reduced battery degradation significantly. Highlights: Battery degradation and minimum cost study for a Plug-In Hybrid Electric city bus. Combined maximum efficiency and power following control strategy decreases battery degradation. Improper control for a Plug-In Hybrid Electric bus degrades the battery and increases lifetime cost.