基于绝缘芯平面变压器的新型高压直流电源的调试及输出特性  

Test and output characteristics research on high voltage DC generator based on high-frequency planar insulated core transformer

作　　者：田佳甲[1,2] 刘永好[1] 张金玲[1] 李瑞[1] 卢宋林[1] 李德明[1] 

机构地区：[1]中国科学院上海应用物理研究所嘉定园区,上海201800 [2]中国科学院大学,北京100049

出　　处：《核技术》2015年第7期44-48,共5页Nuclear Techniques

摘　　要：介绍了一种以绝缘芯平面变压器为核心部件的新型高压直流电源的原理和基本结构,并给出了自行设计的实验样机的参数。对样机进行了调试,并测量了不同负载下电源的输出特性,发现在负载较重时电源会出现明显的压降。建立合理的等效电路和参数模型,对导致压降的原因进行了理论分析,进而提出了相应的解决方法,并进行了实验验证。结果证明,在负载较重时,绝缘芯平面变压器中的压降主要由漏磁引起,此问题通过调整功率因数解决。Background： Insulated Core Transformer （ICT） used in irradiation industry has many disadvantages on account of its low operating frequency, Planar Insulated Core Transformer （PICT） is developed for high-frequency high voltage direct current （H-V DC） generator. Purpose： This study aims to develop a novel PICT-based H-V DC for power supply less than 1 MeV, and investigate its output characteristics for the design and optimization of PICT. Methods： Preliminary test on self-designed PICT apparatus is carried out and the output characteristics under different loads are measured. Both theoretically and by Multisim PICT＇s equivalent circuit and parametric model are built and the reason giving rise to voltage drop is analyzed. Emphatically, the influence of stray parameters to the output characteristics is discussed and experimental verification is also presented. Results ＆ Conclusion： Leakage flux causes voltage drop when the load current is heavy. To eliminate the leakage flux, power coefficient must be rectified by compensation capacitor, and the relevant experimental verification shows satisfactory results. And Multisim simulation is considered to be practicable in physical design of PICT in view of good consistency with experimental result.

关 键 词：绝缘芯平面变压器 输出特性 漏磁 功率因数 

分 类 号：TL50[核科学技术—核技术及应用]