基于3D超导调相机模型的不同阻尼屏蔽结构的性能分析和对比  

Performance Analysis and Comparison of Different Damping Shielding Structures Based on 3D Superconducting Synchronous Compensator Model

作　　者：寿佳波 张建承 马吉恩[1] 方攸同[1] SHOU Jiabo;ZHANG Jiancheng;MA Jien;FANG Youtong(College of Electrical Engineering,Zhejiang University,Hangzhou 310027,China;State Grid Zhejiang Electric Power Co.,Ltd.,Electric Power Research Institute,Hangzhou 310011,China)

机构地区：[1]浙江大学电气工程学院,杭州310027 [2]国网浙江省电力有限公司电力科学研究院,杭州310011

出　　处：《微特电机》2023年第11期7-14,共8页Small & Special Electrical Machines

基　　金：国网浙江省电力有限公司科技资助项目(B311DS22000L)。

摘　　要：高温超导调相机以响应速度快和占用空间小等优势而在孤岛等特殊电力系统场合被用来替代传统调相机。为保证超导励磁绕组始终工作在超导态,提高高温超导调相机的运行可靠性,需要探究高温超导调相机的阻尼屏蔽结构对超导励磁绕组区域的异步磁场的抑制能力,通过三维有限元仿真对比不同阻尼屏蔽结构在超导电机端部和非端部区域的异步磁场抑制能力,结果表明,铜套阻尼屏蔽结构更加适合应用于高温超导调相机。利用三维仿真计算采用不同阻尼屏蔽结构的高温超导调相机的暂态性能,发现采用铜套阻尼屏蔽结构的高温超导调相机具有更小的次暂态电抗和更大的短路电流。The high-temperature superconducting synchronous compensator(HTSSC)is used to replace the traditional synchronous compensator in special power systems such as isolated islands because of its advantages of fast response speed and small space.In order to ensure that the superconducting excitation winding always works in the superconducting state and improve the operation reliability of the HTSSC,it is necessary to explore the suppression ability of the damping shield structure to the asynchronous magnetic field in the region of the superconducting excitation winding.The suppression ability of asynchronous magnetic field in the end and non-end regions of HTSSC with different damping shielding structures was compared by three-dimensional finite element simulation.The results showed that the copper shell damping shield structure was more suitable for HTSSC.The transient performance of HTSSC with different damping shielding structures was calculated by three-dimensional simulation.It was found that the HTSSC with copper shell damping shielding structure had smaller subtransient reactance and larger short circuit current.

关 键 词：高温超导调相机 阻尼屏蔽层 异步电枢磁场 暂态性能 

分 类 号：TM342[电气工程—电机]