3种电子式电流互感器的传变特性分析与比较  

Characteristics Analysis and Comparison of Three Types of Electronic Current Transformers

作　　者：谢琼香[1] 何瑞文[1] 蔡泽祥[2] 李佳曼[2] 

机构地区：[1]广东工业大学自动化学院,广州510006 [2]华南理工大学电力学院,广州510000

出　　处：《电力系统及其自动化学报》2014年第5期18-22,共5页Proceedings of the CSU-EPSA

基　　金：国家自然科学基金资助项目(51377026)

摘　　要：结合数字化变电站的发展趋势和二次设备检测需求,给出了一种含电子式互感器校验仪的传变特性测试研究方案,并根据3种不同类型的电子式电流互感器各自的特点进行了实验研究,通过实验数据的误差分析了其性能差异。结果表明,不同类型的电子式电流互感器可以充分发挥各自的优势运用于智能化变电站中,解决了传统互感器存在的磁饱和、暂态精度低以及谐波测量的欠缺等方面的问题,为开展数字化变电站继电保护测试与建模提供了基础数据支持。Combined with the trend of digital substation and the testing demand of the secondary equipment,a kind of transform characteristic test research program which includes electronic transformer（ECT） calibrator is proposed,the experimental study is carried out according to their characteristics of three different types of electronic current transformer,and the performance disparities between them are analyzed through errors from the experimental data.The results indicate that different types of electronic current transformer can make full use of their respective advantages to apply in future intelligent substation,thereby solving the problem of the magnetic saturation,low transient accuracy and the dearth of harmonic measurement existing in the traditional transformer,and providing basic data support for the development of the digital substation relay protection testing and modeling.

关 键 词：电子式电流互感器 测试方案 传变特性 误差 性能差异 

分 类 号：TM452[电气工程—电器]