摘要
根据等高等热流的空心电抗器设计参数,建立了三维流场-温度场耦合仿真模型,得到了电抗器详细的温度场和流场分布特点,仿真结果表明电抗器内部各包封线圈温升基本相同。提取包封线圈和气道沿轴线方向温度和流速分布,得到包封线圈与气道间的散热特性。在此基础上,选取内部包封线圈-气道单元来反映电抗器的整体温升,结合竖直管道对流换热实验关联式,推导出电抗器的温升计算方法。联立电抗器的电感守恒和结构方程,构建电抗器金属导体用量与包封线圈整体外形比例、气道宽度和包封数量等参数间的关系式,分析了各结构参数对电抗器金属导体用量的影响规律。将电抗器金属导体用量作为优化目标,采用多岛遗传算法获得线圈的最佳结构参数,优化结果表明在保证电抗器电感和温升恒定且满足损耗的要求下,优化方法能够显著降低金属导体用量,可为电抗器的优化设计提供重要指导。
According to the design parameters of air core reactor with equal high and heat flow,a three-dimensional fluid fieldtemperature field coupling simulation model is established,and the detailed temperature field and flow field distribution characteristics of reactor are obtained.The simulation results show that the temperature rise of each encapsulated coil in reactor is basi⁃cally the same.The heat dissipation characteristics between the coil and the air duct are obtained by extracting the temperature and velocity distributions along the axial direction of the encapsulated coil and the air duct.On this basis,the internal encapsulated coilair duct unit is selected to reflect the overall temperature rise of the reactor,combined with the experimental correlation of vertical pipe convection heat transfer,the reactor temperature rise calculation method is deduced.Based on the inductance conservation and structural equation of reactor,the linkage of the amount of reactor metal conductor with the overall shape proportion of encapsulated coil,air duct width and encapsulated number is constructed.The influences of all structural parameters on the amount of reactor metal conductor are also analyzed.Taking the amount of reactor metal conductor as the optimization objective,the optimal structural parameters of the coil are obtained by multi-island genetic algorithm.The optimization results show that the optimization method can significantly reduce the amount of metal conductor under the condition of ensuring the constant inductance and temperature rise of reactor and meeting the requirements of loss,which provides important guiding significance for the optimal design of reactor.
作者
袁发庭
韩毅凛
唐波
姜发
杨文韬
王玥
黄力
YUAN Fating;HAN Yilin;TANG Bo;JIANG Fa;YANG Wentao;WANG Yue;HUANG Li(Hubei Provincial Engineering Technology Research Center for Power Transmission Line,China Three Gorges University,Yichang,Hubei 443002,China;College of Electrical Engineering and New Energy,China Three Gorges University,Yichang,Hubei 443002,China)
出处
《南方电网技术》
CSCD
北大核心
2023年第10期42-52,共11页
Southern Power System Technology
基金
湖北省教育厅科学技术研究项目(Q20211212)
宜昌市科技计划项目(A21-3-010)
国家自然科学基金资助项目(51977121)。
关键词
干式空心电抗器
多物理场耦合
热磁联合优化
多岛遗传算法
dry-type air core reactor
multi-physical field coupling
thermal and magnetic joint optimization
multi-island genetic algorithm
