用于燃料电池和锂离子电池混合动力汽车的数字双增强控制装置

Xu Kang, Yujie Wang, Cong Jiang, Zonghai Chen
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摘要

随着锂离子电池和燃料电池的发展,混合动力系统的应用越来越广泛。为了更好地优化燃料电池混合动力系统的能量管理问题,系统建模和仿真的准确性非常重要。混合动力系统是通过有源拓扑结构连接电池和燃料电池而形成的。数字孪生技术适用于物理实体之间的映射,具有高交互性和快速优化迭代的特点。本文通过收集实际运行数据,建立了基于数理逻辑的相关模型;随后,结合相关运行条件并对模型进行仿真,验证了模型的准确性。随后,利用数字孪生技术建立了基于混合动力系统的观光车及其运行环境的三维可视化模型,以改进燃料电池混合动力系统的模型仿真。在低速状态下,基于混合动力系统的观光车的仿真结果与实际运行状态相比误差较小,内部各子部件相关数据的准确性较高。在模型展示车与环境的简单交互中,由于需要传输的数据量较小,通信状态可以满足数字孪生模型的基本要求。本研究通过将数理逻辑与可视化模型相结合,对数字并行化进行了初步尝试,可作为后续开发更成熟的数字孪生模型的基础。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Digital Twin-Enhanced Control for Fuel Cell and Lithium-Ion Battery Hybrid Vehicles
With the development of lithium-ion batteries and fuel cells, the application of hybrid power systems is becoming more and more widespread. To better optimize the energy management problem of fuel cell hybrid systems, the accuracy of system modeling and simulation is very important. The hybrid system is formed by connecting the battery to the fuel cell through an active topology. Digital twin technology is applicable to the mapping of physical entities to each other with high interactivity and fast optimization iterations. In this paper, a relevant model based on mathematical logic is established by collecting actual operational data; subsequently, the accuracy of the model is verified by combining relevant operating conditions and simulating the model. Subsequently, a three-dimensional visualization model of a hybrid power system-based sightseeing vehicle and its operating environment was established using digital twin technology to improve the model simulation of the fuel cell hybrid power system. At low speeds, the simulation results of the hybrid power system-based sightseeing vehicle have a small error compared with the actual running state, and the accuracy of the data related to each internal subcomponent is high. In the simple interaction between the model display vehicle and the environment, the communication state can meet the basic requirements of the digital twin model because the amount of data to be transferred is small. This study makes a preliminary attempt at digital parallelism by combining mathematical logic with visualization models and can be used as a basis for the subsequent development of more mature digital twin models.
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