Advanced detection and compensation scheme for current transformers saturation

机译：电流变压器饱和的高级检测和补偿方案

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This paper presents an advanced technique for current transformer saturation detection and compensation. The technique is based on the pre-fault current signal and the saturated-free portion after fault occurrence in order to calculate the effective unknown parameters of the transient secondary current. The proposed technique has attractive features include a high accuracy to determine power system angle, the simplicity for on-line implementation, not affected by the remanent flux in the CT core, and it is independent of the CT parameters/characteristics and secondary burden. The accuracy and robustness of the introduced compensation algorithm are demonstrated though extensive simulation cases reflecting a wide range of variation in fault conditions and CT parameters.

机译：本文提出了一种用于电流变压器饱和度检测和补偿的先进技术。该技术基于故障电流信号和故障发生后的饱和部分，以便计算瞬态次级电流的有效未知参数。所提出的技术具有吸引力的特征包括高精度，以确定电力系统角度，在线实现的简单性，不受CT核心中的剩余通量的影响，并且它独立于CT参数/特性和次要负担。虽然广泛的模拟案例，但是反映了故障条件和CT参数的广泛变化的广泛模拟案例，证明了引入的补偿算法的准确性和鲁棒性。

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《International Middle East Power Systems Conference》|2006年||共6页
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中图分类电力系统的自动化;
关键词
CT saturation detection; fault detection; saturated current compensation; saturation effects;

机译：CT饱和度检测;故障检测;饱和电流补偿;饱和效果;

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专利

1. Morphological Lifting Scheme for Current Transformer Saturation Detection and Compensation [J] . Lu Z., Smith J. S., Wu Q. H. IEEE transactions on circuits and systems . I , Regular papers . 2008,第10期

机译：电流互感器饱和检测与补偿的形态学提升方案
2. New Algorithm for current transformer saturation detection and compensation based on derivatives of secondary currents and Newton's backward difference formulae [J] . Chothani N.G., Bhalja B.R. Generation, Transmission & Distribution, IET . 2014,第5期

机译：基于二次电流导数和牛顿向后差分公式的电流互感器饱和检测与补偿新算法
3. Hardware implementation and real time performance evaluation of current transformer saturation detection and compensation algorithms [J] . Alderete L., Tavares M. C., Magrin F. Electric power systems research . 2021,第Jula期

机译：硬件实现和实时性能评估电流互感器饱和度检测和补偿算法
4. Advanced detection and compensation scheme for current transformers saturation [C] . Allah R.Abd, Moussa S., Shehab-Eldin E.H., Power Systems Conference, 2006. MEPCON 2006 . 2006

机译：先进的电流互感器饱和检测和补偿方案
5. Saturation of current transformers and its impact on digital overcurrent relays. [D] . Al-Abbas, Nabil H. 2005

机译：电流互感器的饱和及其对数字式过电流继电器的影响。
6. A Novel Differential High-Frequency Current Transformer Sensor for Series Arc Fault Detection [O] . Guanghai Bao, Xiaoqing Gao, Run Jiang, 2019

机译：用于串联电弧故障检测的新型差分高频电流互感器传感器
7. Saturation Detection-Based Blocking Scheme for Transformer Differential Protection [O] . Byung Eun Lee, Jinsik Lee, Sung Ho Won, 2014

机译：基于饱和检测的变压器差动保护闭锁方案

Advanced detection and compensation scheme for current transformers saturation

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