电工技术学报  2020, Vol. 35 Issue (zk1): 1-9    DOI: 10.19595/j.cnki.1000-6753.tces.L80708
电工理论与新技术 |
压装组件中圆柱形母线的部分电感计算方法
刘欣1, 王利桐1, 梁贵书1, 齐磊2
1. 华北电力大学电力工程系 保定 071003;
2. 华北电力大学新能源电力系统国家重点实验室 北京 102206
Computing Method for Partial Inductance of Cylindrical Busbar Conductor
Liu Xin1, Wang Litong1, Liang Guishu1, Qi Lei2
1. Department of Electrical Engineering North China Electric Power UniversityBaoding 071003 China;
2. State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources North China Electric Power University Beijing 102206 China
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摘要 在大功率变换器、高压直流断路器等含有电力电子器件的设备中,大尺寸圆柱形压接母线与平板压装型器件配合使用的现象普遍存在。开关器件通断过程中,母线杂散电感的存在会造成强烈的电磁干扰,因此对母线杂散电感的准确提取进而对其结构进行优化配置是设备电磁兼容设计中必不可少的环节。该文针对压装组件中的圆柱形母线导体,基于部分单元等效电路理论提出了一种通用的部分电感计算方法。该方法采用圆环单元进行剖分,考虑了圆形截面导体的中心对称特性,与传统矩形和三角形剖分方法相比,计算结果更为准确且可有效提高计算效率。此外,现有的基于圆环单元剖分的计算方法仅适用于导体的长度大于横截面直径的情况,而文中所提方法不存在任何限制条件,具有普遍适用性。结合典型算例并通过与几种现有计算方法对比,验证了所提计算方法在准确性和计算效率方面存在的优势。
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刘欣
王利桐
梁贵书
齐磊
关键词 电磁兼容设计圆柱形母线部分单元等效电路电力电子装备    
Abstract:In the high voltage and high power converter, high voltage DC circuit breaker, etc., the large cylindrical conductor is widely used in conjunction with the press pack devices. The stray inductance of busbar brings strong electromagnetic interference during the turn on/off process of the switch device. Thus, the accurate calculation and optimization for the stray inductance are indispensable parts for the electromagnetic compatibility design of the equipment. Based on the theory of partial element equivalent circuit, a method of calculating the partial inductance for large cylindrical conductor is proposed in this paper. Different from the rectangular and triangle enmeshment methods, this method gives full consideration to the symmetry characteristics of circular cross section in cylindrical conductor and divides the conductor into round tubular elements. Besides, this method overcome the limitation for the conductor size (the length of the conductor is greater than the diameter of the cross section) in the existing calculation method based on the round tubular enmeshment and has general applicability. Finally, some examples are provided and the advantages of high accuracy and efficiency are verified.
Key wordsElectromagnetic compatibility design    cylindrical busbar conductor    partial element equivalent circuit    power electronic equipment   
收稿日期: 2018-07-09      出版日期: 2020-03-05
PACS: TM46  
基金资助:国家重点研发计划资助项目(2017YFB0902400)
通讯作者: 王利桐 男,1991年生,博士研究生,研究方向为电力电子系统电磁兼容、PEEC方法在电力系统中的应用。E-mail: ltwangncepu@163.com   
作者简介: 刘 欣 男,1980年生,博士,副教授,研究方向为电力电子系统电磁兼容、PEEC方法在电力系统中的应用及电力系统过电压、雷电防护等。E-mail: liuxinhust@163.com
引用本文:   
刘欣, 王利桐, 梁贵书, 齐磊. 压装组件中圆柱形母线的部分电感计算方法[J]. 电工技术学报, 2020, 35(zk1): 1-9. Liu Xin, Wang Litong, Liang Guishu, Qi Lei. Computing Method for Partial Inductance of Cylindrical Busbar Conductor. Transactions of China Electrotechnical Society, 2020, 35(zk1): 1-9.
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