摘要: |
用于脉冲功率电源的高温超导脉冲变压器,集超导储能与脉冲放大为一体,在脉冲功率技术中有着良好的发展前景。合理设置线圈的结构参数可以提升高温超导脉冲功率变压器的耦合系数和储能容量,满足脉冲功率电源小型化、轻量化的优化目标。本文利用有限元仿真软件Ansoft Maxwell,建立了同轴饼式线圈叠加结构的单模块变压器模型和环形结构的多模块变压器模型,根据磁场分布和后期计算,分析了结构参数对脉冲变压器耦合系数和原边超导线圈的储能的影响。仿真分析结果表明,在77 k时,单模块高温超导脉冲变压器的耦合系数和原边电感线圈的储能随线圈高度减小逐渐增大,储能随内半径增大而增大然后趋于稳定水平;多模块环形结构的高温超导脉冲变压器减小线圈高度、增大内半径能够获得高储能和高耦合系数。 |
关键词: 电感储能,超导脉冲变压器,结构参数 |
DOI: |
投稿时间:2019-03-19修订日期:2019-08-02 |
基金项目:国家自然科学基金项目(面上项目,重点项目,重大项目) |
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Analysis Of Coil Structural Parameters Of High Temperature Superconducting Pulsed Power Transformer* |
JIAO Can1, LI Haitao†1, AN Yunzhu1, CHEN Yi1, JIANG Zhipeng2, GAO Xiaojing3
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(1.School of Electrical and Electronic Engineering,Shandong University of Technology;2.State Grid Hubei Power Supply Limited Company Ezhou Power Supply Company;3.State Grid Hubei Power Supply Limited Company,Economic Technology Research Institute) |
Abstract: |
High temperature superconducting pulse power transformer (HTSPPT) for pulse power supply can store superconducting energy and amplify pulse. It has a good development prospect in pulse power technology. Proper coil structure parameters can increase the coupling coefficient and energy storage capacity of HTSPPT. This can meet the optimization goal of miniaturization and lightweight of pulse power supply. In this paper, the finite element simulation software Ansoft Maxwell is used to establish the simulation model of single module transformer with coaxial pancake coil structure and multi-module transformer with ring structure. According to the magnetic field distribution and calculation, the influence of structural parameters on the performance of pulse transformer is analyzed. The simulation results show that when the temperature is 77K, the energy storage and coupling coefficients of single module coaxial pie HTSPPT increase with the decrease of coil height. The energy storage of superconducting coil increases gradually with the increase of radius and then tends to a stable level. High energy storage and high coupling coefficient can be achieved by reducing coil height and increasing inner radius of HTSPPT with multi-module ring structure. |
Key words: Inductive energy storage, Superconducting pulse power transformer, Structural parameter |