电磁成形过程中能量动态转换机制  

Dynamic Energy Conversion Mechanism in Electromagnetic Forming

作　　者：熊奇 金柯威 阎诺 李哲 邱爽 李彦昕 XIONG Qi;JIN Kewei;YAN Nuo;LI Zhe;QIU Shuang;LI Yanxin(Hubei Provincial Engineering Technology Research Center for Microgrid(China Three Gorges University),Yichang 443002,Hubei Province,China;College of Electrical Engineering&New Energy,China Three Gorges University,Yichang 443002,Hubei Province,China;State Grid Yichang Power Supply Company,Yichang 443000,Hubei Province,China)

机构地区：[1]湖北省微电网工程技术研究中心(三峡大学),湖北省宜昌市443002 [2]三峡大学电气与新能源学院,湖北省宜昌市443002 [3]国网湖北省电力有限公司宜昌供电公司,湖北省宜昌市443000

出　　处：《中国电机工程学报》2025年第3期1194-1204,I0033,共12页PROCEEDINGS OF THE CHINESE SOCIETY FOR ELECTRICAL ENGINEERING

基　　金：国家自然科学基金项目(51707104);武汉强磁场学科交叉基金资助项目(WHMFC202121)。

摘　　要：电磁成形(electromagnetic forming,EMF)技术因其较低的能量转换效率饱受诟病,目前针对其能量转换过程的研究也不充分。传统研究往往重点关注成形精度的改善,缺乏从能量的角度对成形效率进行优化。为此,针对管件电磁胀形过程,采用理论分析与仿真计算相结合的方式,揭示整个成形过程中各种能量相互转换的动态过程;得到电源参数、线圈参数以及耦合关系变化对能量转换效率的影响规律。结果表明,在管件电磁胀形中,能量转换效率随着电源电容值、线圈匝数、层数的增加,呈现先增大后减小的趋势,成形过程的能量转换效率存在最优设置,优化后的效率约为优化前的1.5倍。而相较于电源参数以及线圈结构参数的改进,通过添加集磁器来改进成形系统间耦合关系的方式对能量利用效率的提升更为明显,可进一步将效率提升至1.7倍。研究成果可以加深对EMF能量动态转换机制的理解,并为EMF能量转换效率的研究提供新思路。Electromagnetic forming(EMF)technology has been criticized for its low energy conversion efficiency,and the current research on its energy conversion process is not sufficient.Traditional research often focuses on the improvement of forming accuracy and lacks the optimization of forming efficiency from the perspective of energy.Therefore,the dynamic process of energy conversion in the whole forming process is revealed by combining theoretical analysis with simulation calculation.The influence laws of power supply parameters,coil parameters and coupling relation on energy conversion efficiency are obtained.The results show that the energy conversion efficiency increases first and then decreases with the increase of power capacitance,coil turns and layers.There is an optimal setting of energy conversion efficiency in the forming process,and the efficiency after optimization is about 1.5 times of that before optimization.Compared with the improvement of the power supply parameters and coil structure parameters,the improvement of the coupling relationship between the forming systems by adding a field shaper can improve the energy utilization efficiency more significantly,and the efficiency can be further increased to 1.7 times.The research results of this paper can deepen the understanding of EMF dynamic energy conversion mechanism,and provide a new idea for the study of EMF energy conversion efficiency.

关 键 词：电磁成形 电磁能 能量转换效率 集磁器 有限元仿真 

分 类 号：TM154[电气工程—电工理论与新技术]