Bidirectional Inductive Charging Systems: Design Strategies, Simulation-oriented Shielding Optimization and Electromagnetic Field Dosimetry

双向感应充电系统：设计策略、面向仿真的屏蔽优化和电磁场剂量测定

• 批准号: 324925030
• 负责人: Professor Dr. Markus Clemens
• 金额: --
• 依托单位: Lehrstuhl für Theoretische Elektrotechnik
• 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 2020-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/324925030?language=en
• 关键词: Bidirectional; Inductive; Charging; Systems; Design

Inductive wireless power transfer systems for electric vehicles are designed to simplify the charging process of energy storage systems and are already tested as real life prototypes. The underlying concept, however, does not include the intended possible use of electric and hybrid electric vehicles as intermediate energy storage systems for the energy grid. Here, the required technical foundations for bidirectional inductive charging systems are not sufficiently available yet. The goal of this research proposal aims at getting design rules of bidirectional inductive power transfer systems with respect to future applicability and technological performance. This also includes aspects of the electromagnetic compatibility of these systems related either to electronic systems or to persons in and outside the vehicles. Magnetic shielding systems are required to ensure that existing regulatory restrictions are maintained. Specific problems can occur due to the combination of high power densities and low electric conductivities of lightweight materials used in modern car bodies.This research proposal focusses on fundamental research related to technical simulations of such shielding configurations for inductive charging systems and their effectivity by concentrating on the development and use of methods for high-fidelity numerical field simulations and measurements of such shielding structures.For the design and optimization of inductive charging systems, the numerical field simulation method is required for the environmental electromagnetic compatibility assessment. In this research proposal, we aim to improve and extend existing simulation methods for an improved numerical electromagnetic dosimetry simulations such that a computer-aided optimization of magnetic shielding structures becomes possible. The scientific challenge of this proposal lies in the multiscale character of these electromagnetic field problems as thin and lightweight shielding structures have to be considered in complex geometric three-dimensional representations of the electromagnetic environment (e.g. car bodies) featuring also high-resolution body phantoms inside and outside these structures. The validation of the required modelling assumptions is possible with the planned measurements of different magnetic shielding structures.

用于电动汽车的感应无线能量传输系统旨在简化储能系统的充电过程，并已作为真实原型进行了测试。然而，基本概念不包括电动和混合动力汽车作为能源电网中间储能系统的预期可能用途。在这里，双向感应充电系统所需的技术基础还不够充分。本研究方案的目标是从未来的适用性和技术性能两个方面得出双向感应输电系统的设计准则。这还包括与电子系统或与车内和车外人员有关的这些系统的电磁兼容性。需要磁屏蔽系统，以确保维持现有的监管限制。由于现代车身使用的轻质材料的高功率密度和低电导率的结合，可能会出现特定的问题。本研究方案专注于开发和使用高保真数值模拟方法和此类屏蔽结构的测量方法，对感应充电系统的屏蔽配置及其有效性进行相关的基础研究。对于感应充电系统的设计和优化，环境电磁兼容性评估需要使用数值场模拟方法。在这项研究方案中，我们的目标是改进和扩展现有的模拟方法，以改进电磁剂量学的数值模拟，从而使计算机辅助优化磁屏蔽结构成为可能。这一提议的科学挑战在于这些电磁场问题的多尺度特征，因为必须在电磁环境(例如车身)的复杂几何三维表示中考虑薄而轻的屏蔽结构，这些结构内外也具有高分辨率的人体模型。通过不同磁屏蔽结构的计划测量，可以验证所需的建模假设。