Low-Cost Prototype for the Electronically Compensation of Current Transformers

被引：17

作者：

Baccigalupi, Aldo ^{[1
]}

Liccardo, Annalisa ^{[2
]}

机构：

[1] Univ Naples Federico 2, Dipartimento Informat & Sistemist, I-80125 Naples, Italy

[2] Univ Naples Federico 2, Dipartimento Ingn Elettr, I-80125 Naples, Italy

来源：

IEEE SENSORS JOURNAL | 2009年 / 9卷 / 5-6期

关键词：

Compensated current transformers (CTs); electronic compensation; errors evolution versus frequency; ACCURACY;

D O I：

10.1109/JSEN.2009.2020242

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

In this paper, a novel method for the compensation of commercial current transformers (CTs), based on the insertion of a series analog circuit at the secondary winding is proposed. The method allows the enhancement of existing transformers which can, thus, reach the 0.2 ratio error and a phase error lower than the measurement sensitivity, only by means of the insertion of a low-cost circuit. The feasibility of the method has been preliminarily verified by applying the model of the compensating circuit to the actual signal acquired at the transformer terminals. Successively, the circuit has been realized and applied to a commercial CT. Experimental tests, aiming at assessing the compensation performance, have been conducted by varying the magneto-motive force at both industrial and higher frequencies.

引用

页码：641 / 647

页数：7

共 16 条

[1] Novel method of error current compensation for Hall-effect-based high-accuracy current transformer
Ai, X
Bao, H
Song, YH
[J]. IEEE TRANSACTIONS ON POWER DELIVERY, 2005, 20 (01) : 11 - 14
[2] *AN COMP, AN AN221E04 DAT
[3] APUZZO MD, 1988, P 11 IMEKO WORLD C H, P63
[4] Baccigalupi A., 2007, COMPENSATION CURRENT, P1, DOI [10.1109/IMTC.2007.378991, DOI 10.1109/IMTC.2007.378991]
[5] BOULET B, 1997, P IEEE C INTR TECHN, V1, P285
[6] CENNAMO F, 1988, P 11 IMEKO WORLD C H, P257
[7] Daponte P., 1995, Measurement, V15, P213, DOI 10.1016/0263-2241(95)00005-6
[8] IEEE Std. 1241, 2000, 1241 IEEE
[9] Combined wavelet transform and regression technique for secondary current compensation of current transformers
Li, F
Li, Y
Aggarwal, R
[J]. IEE PROCEEDINGS-GENERATION TRANSMISSION AND DISTRIBUTION, 2002, 149 (04) : 497 - 503
[10] A digital compensation method for improving current transformer accuracy
Locci, N
Muscas, C
[J]. IEEE TRANSACTIONS ON POWER DELIVERY, 2000, 15 (04) : 1104 - 1109

← 1 2 →