权益分类	功能权益	普通用户	{{item.name}}会员
{{category.name}}	{{benefitItem.name}}

Drivetrain-Integrated DC-DC Converter for 48 V Network Vehicles

适用于 48 V 网络车辆的传动系统集成 DC-DC 转换器

基本信息

批准号：
310970500
负责人：
Professor Dr.-Ing. Rik W. De Doncker
金额：
--
依托单位：
Institute for Power Generation and Storage Systems (PGS)
依托单位国家：
德国
项目类别：
Research Grants
财政年份：
2016
资助国家：
德国
起止时间：
2015-12-31 至 2017-12-31
项目状态：
已结题

来源：
https://gepris.dfg.de/gepris/projekt/310970500?language=en
关键词：
Drivetrain Integrated DC Converter 48

项目摘要

Increasing power demand due to further electrification of internal combustion engine (ICE) vehicles has taken the 12 V power supply to its limits. Therefore, major automobile manufacturers have agreed to implement a new twin-voltage network. A 48 V battery is used to power the starter-generator and other high power components, while low power components are fed from a 12 V battery. A bidirectional dc-dc converter is placed between these networks so that the 48 V generator can charge the 12 V system and a 12 V jump starter can start the car.The objective of this research project is to investigate and demonstrate a novel drive topology and a control algorithm that eliminate the dc-dc converter between the 12 V network and the 48 V network. The proposed topology is similar to a conventional six-bridge inverter topology. Additionally, the star point of the machine is connected to the 12 V battery via an asymmetrical half bridge. The zero sequence current through the machine transfers power between the two networks. Preliminary analysis shows that the conventional field-oriented machine controller can be extended such that it can control the power flow between the two batteries. The power transfer between the batteries is independent of the machine speed, therefore the integrated dc-dc converter can also operate when the machine is running and producing torque.Within the scope of the project, a detailed simulation model of the system will be built to prove the feasibility and to compare the performance of this topology with the performance of a conventional dc-dc converter. A fully functional prototype will be built and tested to confirm the simulation results through experiments.

由于内燃机 (ICE) 车辆进一步电气化，电力需求不断增加，12 V 电源已达到极限。因此，主要汽车制造商已同意实施新的双电压网络。 48 V 电池用于为启动发电机和其他高功率组件供电，而低功率组件则由 12 V 电池供电。在这些网络之间放置一个双向 DC-DC 转换器，以便 48 V 发电机可以为 12 V 系统充电，并且 12 V 应急启动器可以启动汽车。该研究项目的目的是研究和演示一种新颖的驱动拓扑和控制算法，以消除 12 V 网络和 48 V 网络之间的 DC-DC 转换器。所提出的拓扑类似于传统的六桥逆变器拓扑。此外，机器的星点通过不对称半桥连接到 12 V 电池。通过机器的零序电流在两个网络之间传输功率。初步分析表明，传统的磁场定向机器控制器可以扩展，使其可以控制两个电池之间的功率流。电池之间的功率传输与机器速度无关，因此集成 DC-DC 转换器也可以在机器运行并产生扭矩时运行。在该项目范围内，将建立系统的详细仿真模型以证明可行性，并将该拓扑的性能与传统 DC-DC 转换器的性能进行比较。将构建并测试功能齐全的原型，以通过实验确认模拟结果。