Development of battery-supercapacitor management systems for electric vehicles

电动汽车电池-超级电容器管理系统的开发

• 批准号: 2601057
• 金额: --
• 依托单位: Brunel University London
• 依托单位国家: 英国
• 项目类别: Studentship
• 财政年份: 2021
• 资助国家: 英国
• 起止时间: 2021 至 无数据
• 项目状态: 未结题
• 来源: https://gtr.ukri.org/projects?ref=studentship-2601057
• 关键词: Development; battery; supercapacitor; management; systems

Electric vehicles (EV) consuming low-carbon electricity are important assets to decarbonise the transport sector. Currently, most battery electric vehicles including Tesla and Nissan use lithium-ion (Li-ion) batteries as the energy source. Li-ion batteries have high energy and power capacities and have found commercial success in the EV markets. However, Li-ion batteries suffer from significant cell degradation during deep and rapid discharge. The driving behaviour of individuals directly influences the energy discharged from the EV. To prolong Li-ion batteries lifetime and for optimal operation, supercapacitors can also be an additional energy source with rapid discharge characteristic and high power density. For EVs, the battery management system ensures that the rechargeable battery operates within the safe operating region and also with maximum efficiency.This research project aims to study the technical and economic viability of a hybrid energy storage system for EVs comprising of Li-ion batteries and supercapacitors. The system and its components will be modelled to evaluate the energy storage system's electrical and thermal performances under different driving cycles. The objectives of this research project include:To develop a battery-supercapacitor management system for the optimal operation of Li-ion battery and supercapacitor in EVs. To determine the optimal sizing of energy and power capacities for the battery-supercapacitor system. To investigate the electrical drive system (e.g., power converters) with battery-supercapacitor management systems. To validate the system with hardware-in-the-loop and software-in-the-loop studies.To investigate the techno-economic viability of the hybrid energy storage system in EVs.

消耗低碳电力的电动汽车（EV）是交通运输部门脱碳的重要资产。目前，包括特斯拉和日产在内的大多数电池电动汽车都使用锂离子（Li-ion）电池作为能源。锂离子电池具有高能量和功率容量，并在电动汽车市场上取得了商业成功。然而，锂离子电池在深度和快速放电期间遭受显著的电池退化。个人的驾驶行为直接影响EV释放的能量。为了延长锂离子电池的使用寿命并实现最佳运行，超级电容器也可以是具有快速放电特性和高功率密度的额外能源。对于电动汽车，电池管理系统确保可充电电池在安全工作范围内运行，并以最大的效率运行。本研究项目旨在研究由锂离子电池和超级电容器组成的电动汽车混合储能系统的技术和经济可行性。将对系统及其组件进行建模，以评估储能系统在不同驾驶循环下的电气和热性能。该研究项目的目标包括：开发一种电池-超级电容器管理系统，用于电动汽车中锂离子电池和超级电容器的优化运行。确定电池-超级电容器系统的能量和功率容量的最佳大小。为了研究电驱动系统（例如，功率转换器）与电池-超级电容器管理系统。通过硬件在环和软件在环的研究来验证系统，研究混合储能系统在电动汽车上的技术经济可行性。