电力系统保护与控制2012，Vol.40Issue(10)：133-137,5.
一种电子式互感器现场校准的新算法
A novel algorithm of field calibration of electronic transformers
周冬旭 1李晓明 1杨玲君 1王立辉 2孙健 2何明3
作者信息
- 1. 武汉大学电气工程学院,湖北武汉430072
- 2. 江苏省电力试验研究院有限公司,江苏南京210036
- 3. 解放军理工大学,江苏南京210007
- 折叠
摘要
Abstract
Electronic transformers (ECT) need long-term operation, and often operate in formidable and complex conditions. So it is difficult in the process of ECT application of field calibration. A new method of field calibration is presented to solve the problem. Based on the de-noising preprocessing of sample data, this paper establishes the ARMA model, and adopts the frequency bands division-based singular value decomposition total least squares (SVDTLS) algorithm to estimate the models' frequencies, and extracts amplitudes and phases of signal, which can suppress the interference of filed random noise and harmonics waves efficiently. The experimental results indicate that this method with high precision can meet the requirements of field calibrating of 0.2 class ECT.关键词
电子式互感器/现场校准/降噪预处理/频段划分/奇异值总体最小二乘算法Key words
electronic transformers/ field calibration,- de-noising preprocessing/ fractional frequency/ singular value decomposition total least squares分类
信息技术与安全科学引用本文复制引用
周冬旭,李晓明,杨玲君,王立辉,孙健,何明..一种电子式互感器现场校准的新算法[J].电力系统保护与控制,2012,40(10):133-137,5.
