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首页> 外文会议>IEEE International Conference on Power Electronics and Drive Systems >Optimization of a self-oscillating power converter for resonant switching in a contactless inductive energy transfer system for low voltage onboard supply system in lightweight construction electric vehicles
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Optimization of a self-oscillating power converter for resonant switching in a contactless inductive energy transfer system for low voltage onboard supply system in lightweight construction electric vehicles

机译：用于轻型建筑电动车辆的低压车载供电系统的非接触式感应能量传输系统中用于谐振切换的自激功率转换器的优化

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摘要

In the future, mobility will be dominated by different forms of e-mobility. The related disadvantages such as the limited range could be compensated by automatic systems for inductive charging. With highly automated and intelligent inductive charging systems, every parking and stopping process can be used to recharge the traction batteries without any interaction of the driver. For e-vehicles smaller than the size class of electric passenger vehicles, as here for instance an electric go-kart, generally low voltage batteries (instead of high voltage batteries) are used. Hence, different standards are required for charging systems for these low voltage batteries, as for example a lower voltage drop on the secondary side and a simple technical implementation. One possible approach is the use of a high-power oscillator on the primary side in combination with a double-sided parallel compensation. A system like this, just due to circuit state, safe operates by principle in terms of open circuit and short circuit stability. If the windings are taken away from one another, the power transfer performance decreases in proportion to the coupling factor down to zero, only because of the circuit state. Therefore, monitoring system is not necessary. In this paper, the optimal design of the parallel compensated charging system for a charging power of 1 kW with a 60 V traction battery is presented, as well as the optimization of the high-power oscillator for high efficiency and the avoidance of EMI-relevant switching interference.
机译：未来，出行方式将以各种形式的出行方式为主导。相关的缺点，例如范围有限，可以通过用于感应充电的自动系统来弥补。借助高度自动化和智能的感应式充电系统，每个停车和停车过程都可用于为牵引电池充电，而无需驾驶员进行任何交互。对于小于电动乘用车的尺寸等级的电动车辆，例如此处的电动卡丁车，通常使用低压电池（代替高压电池）。因此，对于这些低压电池的充电系统需要不同的标准，例如次级侧上的较低的压降和简单的技术实现。一种可能的方法是在初级侧结合双面并行补偿使用大功率振荡器。像这样的系统，仅由于电路状态，就开路和短路稳定性而言，原则上可以安全运行。如果将绕组彼此分开，则仅由于电路状态，功率传递性能与耦合因子成比例地降低至零。因此，不需要监视系统。本文针对60 V牵引电池对1 kW充电功率的并联补偿充电系统进行了优化设计，并针对高效率振荡器进行了优化，以实现高效率并避免了与EMI相关的问题开关干扰。

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