基于电磁仿真的冷坩埚电源参数优化  

Research on Parameter Optimization of Cold Crucible Power Supply Based on Electromagnetic Simulation

作　　者：王泽学 李玉松[1] 龙浩骑[1] 明玉周 WANG Zexue;LI Yusong;LONG Haoqi;MING Yuzhou(China Institute of Atomic Energy,Beijing 102413,China)

机构地区：[1]中国原子能科学研究院,北京102413

出　　处：《电子科技》2024年第11期70-77,共8页Electronic Science and Technology

基　　金：国防科工局乏燃料后处理科研专项(FKY1683ZHG001SSJS-B01-001)。

摘　　要：针对实验成本高昂且影响参数庞杂等问题,文中利用COMSOL仿真软件建立φ100 mm冷坩埚实验装置的磁场仿真模型,开展高频电源以及线圈参数的仿真实验,并利用神经网络和模拟退火算法对最优高频电源参数组合进行预测。针对不同电流强度、频率、线圈高度、匝数、直径、间距条件下的冷坩埚磁场分布、涡流损耗以及能量利用率变化规律进行仿真实验。以仿真结果为学习样本的神经网络,可快速预测各种电源参数下的磁场和涡流损耗等数据。利用模拟退火算法预测最优电源参数组合。仿真结果表明,在参数优化后可保证在磁场强度和加热效率不变的前提下提高磁场均匀程度和熔制效果,并使能量利用率提高了68%,避免了能量浪费。初步验证了高频电源以及线圈参数优化对磁场分布和能量使用效率的改善效果,可为后续冷坩埚工程样机的电源参数与线圈参数的优化设计提供重要依据。In view of the problems of high cost and complicated parameters,the magnetic field simulation model ofφ100 mm cold crucible experimental device is established by COMSOL simulation software,and the simulation experiments of high-frequency power supply and coil parameters are carried out.The optimal combination of high-frequency power supply parameters is predicted by neural network and simulated annealing algorithm.The magnetic field distribution,eddy current loss and energy utilization of cold crucible are simulated under different current intensity,frequency,coil height,turns,diameter and spacing.Based on the above simulation results,the neural network can quickly predict the magnetic field and eddy current loss under various power supply parameters,and finally use the simulated annealing algorithm to predict the optimal combination of power supply parameters.The simulation results show that after parameter optimization,the magnetic field uniformity can be greatly improved,the melting effect can be improved,the energy utilization rate can be increased by 68%,and energy waste can be avoided.These results preliminarily verify the improvement effect of high-frequency power supply and coil parameter optimization on magnetic field distribution and energy use efficiency,which can provide an important basis for the optimization design of power supply parameters and coil parameters of the following cold crucible engineering prototype.

关 键 词：冷坩埚 高频电源 电磁仿真 神经网络 模拟退火 高放废液 玻璃固化 COMSOL 

分 类 号：TP183[自动化与计算机技术—控制理论与控制工程]