整流变压器偏磁对托卡马克电源系统谐波不稳定的分析  

Analysis of Harmonic Instability of Tokamak Power System Caused by Rectifier Transformer Bias

作　　者：王健声 茆华风 茆智伟 许留伟[2] WANG Jiansheng;MAO Huafeng;MAO Zhiwei;XU Liuwei(Institute of Material Science and Information Technology,Anhui University,Hefei 230031 Anhui,China;Institute of Plasma Physics,Hefei Institutes of Physical Science,Chinese Academy of Sciences,Hefei 230031,Anhui,China)

机构地区：[1]安徽大学物质科学与信息技术研究院,安徽合肥230031 [2]中国科学院合肥物质科学研究院等离子体物理研究所,安徽合肥230031

出　　处：《南方能源建设》2022年第2期70-76,共7页Southern Energy Construction

基　　金：国家自然科学基金“百兆瓦级非稳态运行变流系统低次谐波形成、传导及耦合机理研究”(51707190)。

摘　　要：[目的]为了有效地抑制托卡马克电源系统中非特征次谐波对电网的扰动,研究了托卡马克电源系统低频谐波产生的机理。[方法]通过引入一种改进型的开关函数模型,并选取国际热核聚变实验反应堆(ITER)聚变装置为例,结合其相应的参数建立了其对应的交直流等效电路模型,并通过计算和仿真得到对应的输出2次谐波情况。[结果]通过计算得到输出量与输入量的比值稳定因子值几乎趋向于零。[结论]通过这一计算与仿真结果,可以确定整流变压器直流偏磁不会引起系统的谐波不稳定。[Introduction]The paper aims to effectively suppress the disturbance of non characteristic harmonics to the power grid in the Tokamak power supply system,the paper studies the mechanism of low-frequency harmonics in the Tokamak power supply system.[Method]By introducing an improved switching function model,selected ITER fusion device as an example and established its corresponding AC/DC equivalent circuit model combined with its corresponding parameters,the corresponding output second harmonic was obtained through calculation and simulation.[Result]The ratio of output to input is calculated,and the stability factor value almost tends to zero.[Conclusion]It is determined that the DC bias of rectifier transformer do not cause harmonic instability of the system.

关 键 词：非特征次谐波 托卡马克电源系统 开关函数 直流偏磁 谐波不稳定 

分 类 号：TL4[核科学技术—核技术及应用] TL62