一种电流互感器仿真分析平台构建方法

戚宣威; 尹项根; 李甘; 张哲; 王奕

引用本文:	戚宣威,尹项根,李甘,等.一种电流互感器仿真分析平台构建方法[J].电力系统保护与控制,2015,43(22):69-76.
	QI Xuanwei,YIN Xianggen,LI Gan,et al.A construction method for the simulation platform for the analysis of the current transformer[J].Power System Protection and Control,2015,43(22):69-76

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一种电流互感器仿真分析平台构建方法
戚宣威^1,2, 尹项根^1,2, 李甘³, 张哲^1,2, 王奕⁴
1.电力安全与高效湖北省重点实验室(华中科技大学)，湖北武汉 430074;2.强电磁工程与新技术国家重点实验室(华中科技大学)，湖北武汉 430074;3.长江勘测规划设计研究有限责任公司，湖北武汉 430010;4.广东电网公司电力科学研究院，广东广州510800

摘要:

电流互感器暂态饱和特性及其对差动保护的影响研究是工程现场亟待解决的难题。介绍了一种电流互感器暂态饱和特性仿真分析平台。该平台可根据实际分析需要，灵活组态构建一次系统运行场景，模拟不同形式的电力系统复杂暂态过程。通过选配所开发的不同类型电流互感器(P级、PR级和TPY)的数字仿真模型，能够准确地模拟电流互感器的暂态饱和过程，实现电流互感器暂态特性及差动保护动作性能的分析评估。动模试验与现场应用实例验证了该平台的有效性与准确性。

关键词: 电流互感器暂态饱和差动保护仿真平台动模试验

DOI：10.7667/j.issn.1674-3415.2015.22.011

分类号:

基金项目:国家自然科学基金(51277084，51177058)；中国南方电网公司科技项目(K-GD2012-324)

A construction method for the simulation platform for the analysis of the current transformer

QI Xuanwei^1,2, YIN Xianggen^1,2, LI Gan³, ZHANG Zhe^1,2, WANG Yi⁴

1.Electric Power Security and High Efficiency Laboratory (Huazhong University of Science and Technology), Wuhan 430074, China;2.State Key Laboratory of Advanced Electromagnetic Engineering and Technology (Huazhong Unversity of Science and Technology), Wuhan 430074, China;3.Changjiang Survey, Planning, Design and Research Co., Ltd., Wuhan 430010, China;4.Electric Power Research Institute of Guangdong Power Grid Corporation, Guangzhou 510800, China

Abstract:

The analysis of the current transformer transient saturation characteristic and its impact on differential current protection is an urgent problem to be solved. A simulation platform for analyzing the transient characteristic of the current transformer is introduced. The actual operating scene can be constructed in this platform. A variety of complex transient process in the power system can be simulated. The class P, PR and TPY current transformer model can be selected for analyzing the transient characteristic of the current transformer. This platform can achieve the analysis on the current transformer transient characteristic and its impact on the differential protection. The dynamic test and practical application prove the accuracy and the effectiveness of this platform.

Key words: current transformer transient saturation differential protection simulation platform dynamic test

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