Optimal design of air-core inductor for medium/high power DC-DC converters
Optimal design of air-core inductor for medium/high power DC-DC converters
复制标题
中/大功率DC-DC变换器空芯电感优化设计
作者：
R. Barrera;T. Isobe;M. Molinas
在中高功率应用中，电感是DC-DC转换器中最大、最重的组件之一。随着对变流器体积/重量的要求越来越高，在变流器的设计中要考虑高频，要求电感小、电流大。空芯电感可以被认为是很好的替代方案，因为它们不会受到饱和问题的影响，如果进行适当的设计，可以减少转换器的总重量和损耗。本文对DC/DC转换器的空芯电感进行了分析。首先，提出了一种简化的电感设计，利用LITZ绕组来优化功率损耗。然后，用偏参数化法将所提出的设计方法的结果与商用铁芯电感进行了比较。从双向DC-DC转换器的功率损耗、体积和重量等方面对商用铁芯电感和空芯电感进行了比较分析。由于影响DC-DC转换器中电感选择的参数个数不同，因此采用决策图的方法进行比较，有助于确定哪种类型的电感更好。当额定功率大于1 mW时，空芯电感会给用户带来更多的好处。
Inductors are one of the largest and heaviest components of the DC-DC converter in medium/high power applications. As volume/weight of the converter becomes more important, high frequency is considered in the design of the converter and inductors with low inductance and high currents are required. Air-core inductors can be considered as good alternative, since they are not subject to saturation problems and may provide a reduction on total weight and losses of the converter if an appropriated design is performed. This paper presents an analysis of air-core inductors for DC/DC converters. First, a simplified inductor design is proposed to optimize the power losses by using litz wire winding. Then, results from the proposed design methology are compared with commercial iron-core inductors byusing metaparameterisation approach. A comparative analysis is performed between commercial iron-core inductors and air-core inductors regarding power losses, volume and weight for a bidirectional DC-DC converter. Because the number of parameter that influence the selection of the inductance in a DC-DC converter, then the comparison is done by use desicion chart, which help to define when a type of inductor is better than the other. Air-core inductor will left more benefit for power rating higher than 1MW.
影响因子：
4.4
作者：
D. Jovcic;Lu Zhang
通讯作者：
D. Jovcic;Lu Zhang