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Adaptive energy management for hybrid power system considering fuel economy and battery longevity

机译：用于考虑燃油经济性和电池寿命的混合动力系统的自适应能源管理

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摘要

The adoption of hybrid powertrain technology brings a bright prospective to improve the economy and environmental friendliness of traditional oil-fueled automotive and solve the range anxiety problem of battery electric vehicle. However, the concern of the battery aging cost is the main reason that keeps plug-in hybrid electric vehicles (PHEV) from being popular. To improve the total economy of PHEV, this paper proposes a winwin energy management strategy (EMS) for Engine-Battery-Supercapacitor hybrid powertrains to reduce energy consumption and battery degradation cost at the same time. First of all, a novel hierarchical optimization energy management framework is developed, where the power of internal combustion engine (ICE), battery and super capacitor (SC) can be gradationally scheduled. Then, an adaptive constraint updating rule is developed to improve vehicle efficiency and mitigate battery aging costs. Additionally, a control-oriented cost analyzing model is established to evaluate the total economy of PHEV. The quantified operation cost is further designed as a feedback signal to improve the performance of the power distribution algorithm. The performance of the proposed method is verified by Hardware-in-the-loop experiment. The results indicate that the developed EMS method coordinates the operation of ICE, driving motor (DM) and energy storage system effectively with the fuel cost and battery aging cost reduced by 6.1% and 28.6% respectively compared to traditional PHEV. Overall, the introduction of SC and the hierarchical energy management strategy improve the total economy of PHEV effectively. The results from this paper justify the effectiveness and economic performance of the proposed method as compared to conventional ones, which will further encourage the promotion of PHEVs.
机译：通过混合动力技术的采用可以提高传统油燃料汽车的经济和环境友好性，解决电池电动汽车的焦虑问题。然而，电池老化成本的关注是使插件混合动力电动车（PHEV）受到流行的主要原因。为了提高PHEV的总经济性，本文提出了一种用于发动机电池 - 超级电容器混合动力动力动力动力动力机的WinWin能源管理战略（EMS），以减少能耗和电池降低成本的同时。首先，开发了一种新的分层优化能量管理框架，其中内燃机（ICE），电池和超级电容器（SC）的功率可以逐渐调度。然后，开发了一种自适应约束更新规则，以提高车辆效率并减轻电池老化成本。此外，建立了一种面向对待的成本分析模型，以评估PHEV的总经济性。量化的操作成本进一步设计为反馈信号，以提高配电算法的性能。通过循环实验验证所提出的方法的性能。结果表明，发达的EMS方法与传统PHEV相比，燃料成本和电池老化成本分别坐标，燃料成本和电池老化成本分别降低了6.1％和28.6％。总体而言，SC的引入和等级能源管理策略有效地提高了PHEV的总经济性。本文的结果是与常规方法相比，该方法的有效性和经济性能是符合常规方法的效果和经济性能，这将进一步鼓励PHEV的促进。

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