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Boundary control of dynamic voltage restorers in voltage harmonic compensation
2006 37th IEEE Power Electronics Specialists Conference, 2006Dynamic voltage restorer (DVR) is used to provide load voltage support and protect sensitive load during voltage sags situation. However, voltage sags do not appear frequently and hence the utilization of the DVR is low. In order to increase the utilization of the DVR, the DVR should operate to compensate any load voltage instability especially the ...
Chung, HSH, Hui, SYR, Chan, PKW
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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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Prediction of Harmonic Voltages in Distribution Systems
IEEE Power Engineering Review, 1981The aim of this paper is two-fold. First, it develops workable models for specific devices which are known to inject harmonics into power distribution systems, namely ac-dc converters. Second, these models are then combined with distribution system elements, and the resulting network is solved to yield harmonic voltages.
D. Pileggi, N. Chandra, A. Emanuel
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Evaluation and updating of harmonic voltage limits
2015 IEEE Eindhoven PowerTech, 2015Characteristics of the current emission for new developed devices are changing resulting in lower low order harmonics and an increase in high order harmonics. For the low voltage network this results in an increase in high order harmonic voltages, violating more often the limits for the harmonic voltages at the 15th and 21th order harmonic.
Cobben, J.F.G. +3 more
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Harmonic voltage measurements using CVTs
IEEE Transactions on Power Delivery, 2005A method for harmonic measurements in EHV systems is proposed that is based on the measurement of currents in capacitor voltage transformers (CVT) and values of capacitor elements of CVTs. This is the basis of a new technique, which uses current sensors installed within CVTs.
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Catalogue of harmonic voltages in power systems
IET Conference Publications, 2009Harmonic voltage measurements have been carried out in MV- and LV-systems having different load mixture. The results are presented separately for systems supplying industrial, commercial and residential load as well as for systems with photovoltaic generation.
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Assessment of harmonic distortion and voltage unbalance
IEE Seminar on Power - it's a Quality Thing, 2005The talk will concentrate on the assessment of harmonic distortions and phase unbalance from polluting loads. It will cover the Stage 3 assessment of ER G5/4 including setting of harmonic emission limits. It will also include causes of phase unbalance with some examples and alternative solutions once an issue is identified. (15 pages)
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Control Strategy of Voltage Compensation with Harmonics for Dynamic Voltage Restore
2023 8th International Conference on Power and Renewable Energy (ICPRE), 2023Shiwei Chen +5 more
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International Survey on Voltage Harmonic Unbalance in Low Voltage Networks
2022 20th International Conference on Harmonics & Quality of Power (ICHQP), 2022Jayashree Yadav +3 more
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