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Improving the Accuracy of Current Transformers through Harmonic Distortion Compensation
2019 IEEE International Instrumentation and Measurement Technology Conference (I2MTC), 2019It is common knowledge that conventional current transformers suffer from nonlinear effects due to the magnetization characteristics of their cores. Core saturation may occur because of large overcurrents or unidirectional transient components; however, weak nonlinear effects exist even during normal operation. The typical spectrum of current waveforms
Laurano C., Toscani S., Zanoni M.
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A Novel Approach to Current Transformer Characterization in the Presence of Harmonic Distortion
IEEE Transactions on Instrumentation and Measurement, 2009The current transformer (CT) performance under distorted waveform conditions is usually characterized by means of the frequency-response test. In this paper, a new way to characterize CTs, closer to real operation conditions, is proposed. The harmonic phase-angle and ratio errors are measured using a nonsinusoidal current composed of fundamental and ...
CATALIOTTI, Antonio +3 more
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Harmonic Distortion in Switched Current Cells Due to Settling Error
Analog Integrated Circuits and Signal Processing, 2003An analysis of the harmonic distortion in switched-current cells produced by the non-linear settling error is presented. Two approaches for computing the harmonic components are addressed: discrete-time Fourier series and power series expansion. They are based on the large signal behavior of the SI cell.
Miguel Angel Garcia-Andrade +2 more
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Harmonic distortion in switched-current memory cell
CCECE '97. Canadian Conference on Electrical and Computer Engineering. Engineering Innovation: Voyage of Discovery. Conference Proceedings, 2002The lower and upper bounds on the Total Harmonic Distortion (THD) of a switched-current (SI) memory cell are given. The upper bound is an improvement on previously published results. The simulation results show that the THD measure is always within the bounds given by the explicit formula.
B. Raahemi, A. Opal
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Current distortions compensation method for frequency converters
2012 IEEE 18th International Symposium for Design and Technology in Electronic Packaging (SIITME), 2012This paper present a study of the effects of frequency converters to the power grid and a possible solution for current distortions compensation. Experimental measurements made, at different points of the grid, with the device Fluke 434 to a converter which supplies a 110 kW asynchronous motor, reveal the distortions of current.
I. Orha, S. Oniga
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Sources of Current and Voltage Distortion
Abstract The development in electronics and power electronics results that traditional loads, such as, for example, incandescent bulb-based lighting systems, meaning the linear ones, which do not cause harmonic distortion are superseded by current harmonics-generating loads.openaire +1 more source
Distortion in a semiconductor laser overmodulated by a sinusoidal current
IEEE MTT/ED/AP/LEO Societies Joint Chapter United Kingdom and Republic of Ireland Section. 1997 Workshop on High Performance Electron Devices for Microwave and Optoelectronic Applications. EDMO (Cat. No.97TH8305), 2002When a semiconductor laser is overmodulated by a sinusoidal current, distortion occurs in the optical signal. Using a static limiter as a first model for the laser only permits a rough analysis of this effect. In order to describe the additional distortion arising when the optical intensity rises above threshold, an improved dynamic model is proposed ...
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Contact current distortion due to the tunnel effect
Electrical Contacts - 1999. Proceedings of the Forty-Fifth IEEE Holm Conference on Electrical Contacts (Cat. No.99CB36343), 1999The third harmonic distortion ratio of the tunnel current between two electrodes separated by a thin insulating film, is evaluated by analyzing the formula derived by Simmons (J. Appl. Phys. vol. 34, no. 6, pp. 1793-803, 1963) into the Fourier series in this paper. The results show that the theoretical third harmonic distortion ratio is a function of s/
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Structurally‐Distorted RuIr‐Based Nanoframes for Long‐Duration Oxygen Evolution Catalysis
Advanced Materials, 2023Shangheng Liu +2 more
exaly
Probabilistic Forecasting of Current Harmonic Distortions in Distribution Systems
2023 IEEE PES Innovative Smart Grid Technologies Europe (ISGT EUROPE), 2023Bracale, Antonio +4 more
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