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Overvoltage Suppression for Modular Multilevel Converter With Switch Open-Circuit Fault
IEEE Transactions on Industrial Electronics, 2022Zhen Wang, Li Peng
exaly +2 more sources
Atmospheric Overvoltages Suppression: In Situ and Analytical Validation
IEEE Transactions on Electromagnetic Compatibility, 2023This article deals with the issues arising from non-adequately designed grounding system of the telecommunication cell tower, in situ experimental investigations, novel system design, and consecutive verification as well as in-depth analysis based on the analytical model.
Tonko Garma +3 more
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Application of Superconductors to Suppress Ferroresonance Overvoltage in DFIG-WECS
IEEE Transactions on Energy Conversion, 2022While much attention was given in the literature to improve the fault ride through (FRT) capability of a doubly-fed induction generator (DFIG)-based wind energy conversion system (WECS) during various faults at the grid side, not much attention was given to investigate and improve the performance of DFIG-WECS under ferroresonance conditions. This paper
Mohamed Mosaad +3 more
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Suppression of Incoming High-Frequency Overvoltage in Transformer Coils
IEEE Transactions on Power Delivery, 2021High-frequency overvoltages are most dangerous for the insulation of transformer coils. It is because high-frequency pulse voltage creates an uneven distribution of voltage across the windings. The coil's first turns receive a disproportionately high voltage drop, leading to the inter-turn circuit.
Sergey M. Korobeynikov +4 more
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Suppressing overvoltage on carbodies of a highspeed EMU
2013 15th European Conference on Power Electronics and Applications (EPE), 2013Overvoltage is created on carbodies of a highspeed electric multiple unit (EMU) when the train raises its pantograph or when its main circuit breaker is switched. This paper outlines the mechanism behind the phenomenon of overvoltage generation on carbodies of the highspeed train, proposing suppressing method, and the results of verification of the ...
S. Hatsukade, K. Fujino, S. Kanno
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Overvoltage suppression for UHV transmission lines
Transactions of Tianjin University, 2008The overvoltage phenomena of ultra high voltage (UHV) transmission lines are analyzed and verified by EMTDC/PSCAD simulation. Referring to the theoretical analyses and operating experiences of extra high voltage (EHV) transmission lines in China and UHV transmission lines in Russia and Japan, the methods to suppress the internal overvoltage in UHV ...
Yongli Li +5 more
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Research on Overvoltage Suppression of the Battery Discharging in Electromagnetic Launch
2019 22nd International Conference on Electrical Machines and Systems (ICEMS), 2019This paper introduces a discharging circuit of batteries in hybrid energy storage system for electromagnetic launch. The main switch, integrated gate bipolar thyristor(IGBT), has a high overvoltage at turn-off time in the discharging process. This paper analyzes the causes of the overvoltage based on the circuit structure and the timing discharging ...
Ren Zhou +5 more
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Overvoltages in reactive circuits due to current suppression
Electric Power Systems Research, 1991Abstract Serious overvoltages may be generated by current suppression (or current chopping) when switching out shunt reactors or unloaded transformers. Normalized overvoltage profiles are determined using (a) a single concentrated resistor and (b) a distributed resistance network to simulate eddy current loss in the magnetic core.
D. O'Kelly, A.R.M. Salih, B. Benson
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A hybrid active filter implementation of an overvoltage suppression scheme
2004 IEEE International Symposium on Industrial Electronics, 2004In several practical applications actuators are interconnected to a controlled plant through long cables. If the actuator operates at a fast sampling rate (with respect to the propagation delay of the cable) and its impedance cannot be neglected, wave reflections occur and the transmitted pulse are deformed-degrading the control quality.
R. Ortega +3 more
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A low-loss motor terminal filter for overvoltage suppression
2010 IEEE Energy Conversion Congress and Exposition, 2010Inverter-fed motor drive systems are widely used because of their benefits for energy efficiency and for flexible control of machinery using maintenance-free induction motors. As the inverter produces fast-switching voltage pulses, the transmission-line effects of the motor cable and motor stator windings become significant, and may lead to a doubling ...
Kuen-Faat Yuen, Henry Shu-Hung Chung
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