基于电磁-热-结构多物理场耦合的铁心电抗器线圈结构优化方法  

Coil Structures Optimization Method of Iron Core Reactor Based on Electromagnetic-Thermal-Structure Multi-Physical Field Coupling

作　　者：袁发庭 吕凯 刘健犇 周兵 唐波[1] Yuan Fating;LüKai;Liu Jianben;Zhou Bing;Tang Bo(College of Electrical and New Energy China Three Gorges University,Yichang 443002 China;State Key Laboratory of Power Grid Environmental Protection,Wuhan 430074 China)

机构地区：[1]三峡大学电气与新能源学院,宜昌443002 [2]电网环境保护国家重点实验室,武汉430074

出　　处：《电工技术学报》2022年第24期6431-6441,共11页Transactions of China Electrotechnical Society

基　　金：电网环境保护国家重点实验室开放基金资助项目(GYW51202101368)。

摘　　要：以铁心电抗器线圈作为研究对象,以均衡电磁、温升及振动特性,提高金属材料利用率为目的,进行了优化设计。首先采用电磁场-温度场-结构场多物理场耦合有限元方法分析了电抗器线圈的结构参数对电磁、温升及振动的影响。根据分析结果,结合正交试验法对线圈结构进行优化设计,在均衡电抗器电磁、温升及振动特性的情况下使绕组导体用量最小化,获得铁心电抗器线圈的最佳结构参数。为了验证优化设计方法的正确性,将优化前后的模型进行性能比较,结果表明,优化后铁心电抗器线圈的导体用量与优化前相比减少了16.8%,且电感偏差仅为0.6%;线圈的最大温升降低了7.3%,内层线圈的振动位移增加了14.3%,外侧线圈的振动大小不变,满足了电抗器对于电磁、温升及振动的要求。In this paper,the windings of the core reactor are taken as the research object,and the optimization design is carried out to equalize the electromagnetic,temperature rise and vibration characteristics and improve the utilization rate of metal materials.Firstly,the influence of structural parameters of the reactor winding on the electromagnetic field,temperature rise and vibration is analyzed using the multi-physical field coupling finite element method of electromagnetic field,temperature field and structural field.According to the analysis results,combined with the orthogonal test method,the winding structure is optimized to minimize the number of winding conductors while balancing the electromagnetic,temperature rise and vibration characteristics of the reactor,and the best structural parameters of the core reactor coil are obtained.Then,the performance of the model before and after optimization is compared.The results show that the conductor consumption of the reactor winding after optimization is reduced by 16.8%,and the inductance deviation is only 0.6%,the maximum temperature rise of the coil is reduced by 7.3%,and the vibration displacement of the inner coil is increased by 14.3%.In contrast,the vibration of the outer coil remains unchanged,which meets the requirements of electromagnetic,temperature rise,and vibration.

关 键 词：铁心电抗器 多物理场耦合 正交试验 优化设计 导体用量 

分 类 号：TM47[电气工程—电器]