基于正交试验的空心线圈偏心误差影响因素敏感性分析  

Sensitivity analysis on influencing factors of eccentricity error of air-core coil based on orthogonal test

作　　者：杨世海 胡琛[3] 焦洋[3] 李红斌 赵双双[1,2] 陈刚 YANG Shihai;HU Chen;JIAO Yang;LI Hongbin;ZHAO Shuangshuang;CHEN Gang(State Grid Jiangsu Electric Power Company Research Institute,Nanjing 211103,China;State Grid Key Laboratory of Energy Metering,Nanjing 211103,China;School of Electrical and Electronic Engineering,Huazhong University of Science and Technology,Wuhan 430074,China)

机构地区：[1]国网江苏省电力有限公司电力科学研究院,江苏南京211103 [2]国家电网公司电能计量重点实验室,江苏南京211103 [3]华中科技大学电气与电子工程学院,湖北武汉430074

出　　处：《电力自动化设备》2018年第8期211-217,共7页Electric Power Automation Equipment

基　　金：国家电网公司科技项目(智能变电站电子式互感器复杂环境下运行性能评估关键技术研究)~~

摘　　要：空心线圈偏心误差影响变电站保护、测量和计量单元功能的实现。为了研究偏心误差影响因素敏感性,建立线圈传感模型,计算理想情况下的线圈互感;针对绕组均匀和不均匀这2种情况,分析了互感和偏心距离、不均匀度、相对位置的关系,仿真结果表明如果载流体不偏心,则不均匀度不会影响偏心误差,否则偏心误差将随着各影响因素的变化而变化。提出基于正交试验法的影响因素敏感性评价方法,通过方差分析研究各影响因素的敏感程度,试验结果表明,各影响因素对偏心误差均有显著影响,其中偏心距离的影响程度最大,不均匀度的影响程度最小。The eccentricity error of air-core coil affects the function realization of protection, measurement and metering units in substations. In order to study the sensitivity of eccentricity error＇s influencing factors, the sensing model of coil is established and the mutual inductance of coil in the ideal condition is calculated. The relationships between the mutual inductance and the eccentric distance,the inhomogeneity and the relative position are analyzed under the conditions of even windings and uneven windings. The simulative results show that, if the conductor is not deviating from the center, the inhomogeneity has no effects on the eccentricity error, otherwise, the error will vary with the change of each influencing factor. A sensitivity evaluation method of influencing factors is proposed based on the orthogonal test, which analyzes the sensitivity of each influencing factor by variance analysis. The results of tests show that the influencing factors all have significant effects on the eccentricity error, and the influence degree of the eccentric distance is the largest, while that of the inhomogeneity is the least.

关 键 词：空心线圈 影响因素 偏心误差 不均匀度 相对位置 正交试验 

分 类 号：TM55[电气工程—电器]