Optimal choice of the number of even harmonics demodulated from the excitation current of a sensor for precise dc voltage component detection in low voltage distributive grid as a strategy for suppression of the systematic error due to the grid voltage fluctuation

Open Access

1 January 2018

journal article
Published by Centre for Evaluation in Education and Science (CEON/CEES) in Zbornik Radova, Elektrotehnicki Institut Nikola Tesla

Vol. 28 (28), 25-40
https://doi.org/10.5937/zeint28-19390

Abstract

Ovaj rad tretira problem suzbijanja sistematske greške merenja parazitne jednosmerne komponente napona superponirane naizmeničnom naponu usled fluktuacije naizmeničnog napona oko svoje nominalne vrednosti, primenom torusnog transformatora kao senzora. Analizom su obuhvaćena dva istraživanja koja su koristila metodu parnih harmonika pobudne struje torusnog transformatora za preciznu detekciju jednosmerne komponente napona. Prvo istraživanje uspešno tretira problem detekcije parazitne jednosmerne komponenete napona u niskonaponskoj distributivnoj mreži, a fokus drugog istraživanja je na detekciji naponskog DC offseta laboratorijskog etalona Fluke 6100A. Analiza uticaja primenjenog broja parnih harmonika pobudne struje senzora na potiskivanje sistematske greške, izvedena na osnovu rezultata oba istraživanja, dala je konzistentne rezultate. asimetrična pobuda; harmonijska analiza; merenje napona; torusni transformator

This publication has 15 references indexed in Scilit:

Detection Method of the DC Bias in Distribution Power Transformers
IEEE Transactions on Industrial Electronics, 2013
Active Filter for the Removal of the DC Current Component for Single-Phase Power Lines
IEEE Transactions on Industrial Electronics, 2012
Saturation Compensation Strategy for Grid Connected Converters Based on Line Frequency Transformers
IEEE Transactions on Energy Conversion, 2012
Modeling and stability analysis of an active filter for DC current compensation
Published by Institute of Electrical and Electronics Engineers (IEEE) ,2011
A DC Offset Current Compensation Strategy in Transformerless Grid-Connected Power Converters
IEEE Transactions on Power Delivery, 2011
A sensor to detect the DC bias of distribution power transformers
Published by Institute of Electrical and Electronics Engineers (IEEE) ,2011
Investigation of GIC effects on core losses in single phase power transformers
Archives of Electrical Engineering, 2011
A nonlinear Reactor for DC Current Compensation in Single Phase Power Lines
IFAC Proceedings Volumes, 2011
Highly Efficient Single-Phase Transformerless Inverters for Grid-Connected Photovoltaic Systems
IEEE Transactions on Industrial Electronics, 2009
On the need for strict second harmonic limits
IEEE Transactions on Power Delivery, 2000