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Probabilistic aspects of harmonic impedances
2002 IEEE Power Engineering Society Winter Meeting. Conference Proceedings (Cat. No.02CH37309), 2003Probabilistic aspects of harmonic impedances are considered. Attention is devoted to the effects of statistical correlation among currents, impedances and voltages that exist in real cases. The IEEE industrial test system for harmonic modeling and simulation is considered.
D. CASTALDO +2 more
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IEEE Transactions on Power Delivery, 2020
The existing methods estimating utility harmonic impedance usually require some assumptions such as the utility side is the dominant harmonic source and the harmonic impedance of customer side is much larger than that of the utility side, etc.
Qin Shu +3 more
semanticscholar +1 more source
The existing methods estimating utility harmonic impedance usually require some assumptions such as the utility side is the dominant harmonic source and the harmonic impedance of customer side is much larger than that of the utility side, etc.
Qin Shu +3 more
semanticscholar +1 more source
Harmonic reduction through resistive and inductive harmonic impedance
2014 17th International Conference on Electrical Machines and Systems (ICEMS), 2014In order to improve the power quality, a kind of resistive harmonic impedance (RHL) has been reported. It can provide a reduction of the harmonic distortion, and be implemented using active power electronic devices with a resistance behavior in harmonic frequency.
Fei Li +5 more
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Harmonic Power Sharing by Virtual Impedance to Minimizing Harmonic Distortion
2020 International Seminar on Application for Technology of Information and Communication (iSemantic), 2020Currently research in the field of renewable energy is developing. Renewable energy has been widely applied as Distributed Generation (DG). DG can help the grid to fulfill power needs for consumers. However, DG's presence in the distribution system is causing power quality problems. The problem is harmonic. Each DG is connected to an inverter to change
Langlang Gumilar +2 more
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Harmonic Impedance Measurements on Transformers
IEEE Transactions on Power Apparatus and Systems, 1981An experimental method using series resonant filters to measure the shunt path harmonic impedances of a transformer is proposed. Test results on a 7.5 KVA industrial transformer are shown and results are discussed to gain a better understanding of the harmonic behaviour of power transformers.
B. Szabados, J. Lee
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Harmonic Mitigation Potential of Inductive Shunt Harmonic Impedances
2006 2nd International Conference on Power Electronics Systems and Applications, 2006Although complete compensation is only possible using true active filters, inductive shunt harmonic impedances (ISHI) have been shown to provide a considerable reduction of the harmonic propagation. In previous works, the resistive shunt harmonic impedances (RSHI) is presented that it is very effective, but RSHI have high loss power.
J. Merrikhi, J.S. Moghani, E. Fallah
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A Method of Dividing Harmonic Responsibility Based on Total Harmonic Impedance
2021 4th International Conference on Energy, Electrical and Power Engineering (CEEPE), 2021Aiming at the problem of quantifying harmonic responsibility, a method of dividing harmonic responsibility based on total harmonic impedance is proposed in this paper. Considering that the line with harmonic source will affect the line without harmonic source, the line without harmonic source has a small content of harmonic current. Directly estimating
Xiaoyong Yu +4 more
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Harmonic impedance measurement on submarine cable
2012 IEEE 15th International Conference on Harmonics and Quality of Power, 2012The lumped equivalent circuit parameters and distributed parameters of a line at high frequency are a little different from those at power frequency, because of distribution effects. The paper derives the formulas to get the lumped equivalent circuit parameters and distributed parameters from open circuit and short circuit harmonic impedance, and the ...
Yao Xiao, Zhong Chen, Jinwei Chu
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A four harmonic wideband impedance tuner
2009 Asia Pacific Microwave Conference, 2009A slide screw microwave impedance tuner is presented which has four independent carriages, which slide across a low loss slabline. Each carriage has one or two vertical axes and associated stepper motors and gear, allowing the precise positioning of RF probes (slugs) into the slot of the slabline at any horizontal or vertical position.
Christos Tsironis +3 more
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IEEE transactions on power electronics
Suppressing current harmonics is an essential issue for photovoltaics (PVs). The equivalent impedance or admittance expresses the interaction between the PV converter (PVC) and the background harmonics from the grid, where the control strategies and ...
Pengbo Shan +5 more
semanticscholar +1 more source
Suppressing current harmonics is an essential issue for photovoltaics (PVs). The equivalent impedance or admittance expresses the interaction between the PV converter (PVC) and the background harmonics from the grid, where the control strategies and ...
Pengbo Shan +5 more
semanticscholar +1 more source