直线变压器结构参数对能量传递效率的影响

发布时间：2018-02-28 00:58

本文关键词： 直线变压器磁芯有效截面积磁回路长度能量传递效率　出处：《微波学报》2014年S1期 　论文类型：期刊论文

【摘要】：介绍了影响LTD能量传递效率的主要因素,通过模拟计算分析了等效涡流损耗电阻、励磁电感对脉冲形成网络通过LTD放电的影响。设计加工了一套可用于测量脉冲形成网络通过磁芯对负载放电时LTD初、次级间能量传递效率的试验平台,基于该平台通过调整磁芯有效截面积、平均磁回路长度等条件进行了一系列实验研究。实验研究结果表明,在脉冲宽度300ns、匹配负载2.5欧姆条件下磁芯有效截面积与磁回路长度比值增大两倍,LTD初、次级能量传递效率将增加6个百分点,与理论分析值基本吻合。根据对实验结果的分析可知LTD结构参数优化设计中,在磁芯截面积需求一定的情况下,减小磁芯的平均磁回路长度可以有效提高系统的能量传递效率。
[Abstract]:The main factors affecting the energy transfer efficiency of LTD are introduced. The equivalent eddy current loss resistance is analyzed by simulation. The effect of excitation inductance on the discharge of pulse forming network through LTD. A set of test platform is designed and manufactured to measure the energy transfer efficiency between the initial LTD and the secondary energy transfer between the pulse forming network and the load discharge through the magnetic core. Based on this platform, a series of experiments are carried out by adjusting the effective cross section area of the core and the average magnetic loop length. The experimental results show that, Under the condition of pulse width 300ns and matching load 2.5 ohms, the ratio of effective cross section area to magnetic loop length of magnetic core increases by two times and the secondary energy transfer efficiency increases by 6 percentage points at the beginning of LTD. According to the analysis of the experimental results, it can be seen that in the optimal design of LTD structure parameters, the energy transfer efficiency of the system can be effectively improved by reducing the average magnetic loop length of the magnetic core under the condition that the section area of the magnetic core is certain.
【作者单位】：西南交通大学物理科学与技术学院;
【分类号】：TM403

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