柔性Rogowski线圈的研制  

Development of Flexible Rogowski Coil

作　　者：陈水明[1] 王辉[1,2] 罗毅[2] 王剑[3] 

机构地区：[1]清华大学电机工程与应用电子技术系电力系统及发电设备控制和仿真国家重点实验室,北京100084 [2]华北电力科学研究院有限责任公司,北京100045 [3]华北电网有限公司,北京100053

出　　处：《高电压技术》2009年第11期2685-2692,共8页High Voltage Engineering

基　　金：国家自然科学基金(50737001)~~

摘　　要：Rogowski线圈由于具有良好的线性度,不存在饱和现象,而且实现了原、副方的电气隔离,在电流测量领域有广泛的应用,但由于其金属外壳,在某些场合的应用受到限制。为此主要研究了柔性Rogowski线圈在测量冲击电流中的应用,首先介绍了外积分式Rogowski线圈的工作原理,然后从时域的角度分别论述了阻尼电阻的选取和电容器的非理想化对柔性Rogowski线圈性能的影响,并分析信号引出线对测量结果的影响。实验证明,通过合理的设计和采取良好的屏蔽措施,柔性Rogowski线圈在测量冲击电流时具有较高的性能和更广泛的应用。Rogowski coil is widely applied in impulse measurement, owing to good linearity, instauration and isolation between sources and signal sides, hut sometime the coil＇s application is limited by its metal crust. In the paper, the application of flexible Rogowski coil in impulse measurement is investigated, and the principle of outside-integral coil is introduced, then the effects of damp resistor and capacitor characteristic on coil＇s perform is analyzed with time-dependent, and the effects of signal line＇s length on measurement precise is also checked. The good perform and wide application of flexible Rogowski coil is verified through laboratory test.

关 键 词：冲击电流 柔性Rogowski线圈 阻尼电阻 引线电感 屏蔽 电流测量 

分 类 号：TM835.2[电气工程—高电压与绝缘技术]