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Harmonic measurements: current and voltage transducers
199 IEEE Power Engineering Society Summer Meeting. Conference Proceedings (Cat. No.99CH36364), 2003An overview of the development of special current and voltage transducers at the National Research Council of Canada for accurate measurements of harmonics in power systems will be presented. The transducers include two-stage and electronically-aided instrument transformers, openable-core AC and AC/DC current transformers, multi-stage clamp-on current ...
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Voltage and current harmonics caused by corona
Journal of the American Institute of Electrical Engineers, 1921THE FOLLOWING investigation was made to study the effects of corona in producing voltage and current harmonics in transmission systems. In the early work on corona in 1910 a very complete oscillographic study was made of voltage and current. It was found that the current wave of corona loss very much resembled the excitation current wave of a ...
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Harmonic Voltage Measurement based on Program Josephson Voltage Standard
2020 Conference on Precision Electromagnetic Measurements (CPEM), 2020This paper investigates the feasibility of applying the program Josephson voltage standard to harmonic measurements. When using AC quantum voltage for harmonic voltage measurement, some data will fluctuate greatly due to the transition and Gibbs phenomenon.
Zhengsen Jia +5 more
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Voltage harmonics compensator for high-voltage power supplies
2013 International Conference-Workshop Compatibility And Power Electronics, 2013In this paper, a practical solution for suppression of voltage harmonics in high-voltage power supplies is proposed. The solution is based on three single-phase series active-power filters (SAPF) inserted in a common point of a synchronous generator (SG) through an injection transformer.
Marko Petkovsek +4 more
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Influence of Harmonic System Voltages on the Harmonic Current Emission of Photovoltaic Inverters
2007 International Conference on Power Engineering, Energy and Electrical Drives, 2007Harmonic currents of photovoltaic (PV)-inverters show a significant dependency on the harmonic voltage content of the alternating current (AC)-system voltage. Measurements of harmonic currents were carried out in low-voltage (LV)-systems and under laboratory test conditions with adjustable harmonic content of the AC-voltage.
J. SCHLABBACH +2 more
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Detection of voltage flicker and voltage harmonic using Hilbert Huang Transform
2014 16th International Power Electronics and Motion Control Conference and Exposition, 201416th International Power Electronics and Motion Control Conference and Exposition (PEMC) -- SEP 21-24, 2014 -- Antalya ...
Onal, Yasemin +2 more
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A Dynamic Voltage Restorer (DVR) With Selective Harmonic Compensation at Medium Voltage Level
IEEE Transactions on Industry Applications, 2004Udgivelsesdato: NOV ...
Newman, M.J. +3 more
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Voltage harmonic analysis of the inverter with high voltage and large capacity
2009 4th IEEE Conference on Industrial Electronics and Applications, 2009Abstract-At present, there are two kinds of the high voltage and large capacity inverter, namely multilevel and multi-pulse inverters. In this paper, multi-pulse inverters are classified into two types according to the interphase transformer configuration.
null Bing Chen, null Xiaoling Wen
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Voltage harmonic distortion measurements using capacitive voltage transformers
Proceedings of IEEE. AFRICON '96, 2002This paper investigates the application of capacitive voltage transformers (CVTs) for harmonic distortion measurements. Measured and simulated frequency responses are given for the voltage transformation ratio and the transconductance ratio of the capacitive divider ground return current and the high voltage input signal of a 400 kV CVT.
H.J. Vermeulen, P. Davel
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High voltage test circuit for harmonic and impulse voltage stress
2015 16th International Scientific Conference on Electric Power Engineering (EPE), 2015The paper deals with testing possibilities of discharge activity influence to a medium voltage cable system. It was observed that the discharge activity in insulation systems of high voltage devices is higher when the power electronic is present. The aim is to create a test circuit which will simulate the influence of superposed impulses and harmonics ...
Martin Knenicky, Radek Prochazka
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