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Design and implementation of a universal converter for microgrid applications using approximate dynamic programming and artificial neural networks. [PDF]
Sci RepSuresh K +5 more
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Varistor Voltage Behavior of Metal Oxide Varistors Stressed by Electromagnetic Pulse
2024 IEEE Joint International Symposium on Electromagnetic Compatibility, Signal & Power Integrity: EMC Japan / Asia-Pacific International Symposium on Electromagnetic Compatibility (EMC Japan/APEMC Okinawa)This paper describes degradation characteristics of Metal-oxide-varistors (MOVs) stressed by electromagnetic pulses (EMPs). Degradation characteristics under sub-microsecond pulses such as $1/100\mathrm{~ns}$ (TLP), $5/50\mathrm{~ns}$ (EFT/B) and $25/500\
Kensuke Kondo, Naoyuki Tsukamoto
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Impedance Characteristics of Metal Oxide Varistor under Different Pulses
2019 IEEE Pulsed Power & Plasma Science (PPPS), 2019In this paper, the metal oxide is determined according to the characteristics of the very fast transient overvoltage (VFTO) waveform measured in the gas-insulated metal-enclosed switchgear (GIS) according to the standard regulations. The waveform parameters of the metal oxide varistor (MOV) test platform were designed to build pulse generators with 8µs,
Wei Zhang, Jie Guo
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Nonlinear Inductive Characteristics of Metal Oxide Varistors
2024 3rd International Conference on Energy, Power and Electrical Technology (ICEPET)Since the last century, metal oxide varistors have been widely utilized in power systems. This study proposes a proposed equivalent circuit model for varistors based on nonlinear inductance.
Xinyan Xiao +7 more
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IEEE Journal of Emerging and Selected Topics in Power Electronics, 2021
The power electronic switches have great influences on the performance of the hybrid dc circuit breaker (DCCB). Recently, the integrated gate commutated thyristor (IGCT) is considered to be a suitable alternative full-control power device due to its high
Q. Yi +6 more
semanticscholar +1 more source
The power electronic switches have great influences on the performance of the hybrid dc circuit breaker (DCCB). Recently, the integrated gate commutated thyristor (IGCT) is considered to be a suitable alternative full-control power device due to its high
Q. Yi +6 more
semanticscholar +1 more source
Methodology for Metal Oxide Varistor design applied to Fixed series capacitor
2022 IEEE Engineering International Research Conference (EIRCON), 2022A series capacitor bank includes internal and external events with high energy through the circuit in a transient time; therefore, a series capacitor bank is equipped with a sophisticated Metal Oxide Varistor (MOV) bypass protection system.
R. Velásquez +2 more
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IEEJ TRANSACTIONS ON ELECTRICAL AND ELECTRONIC ENGINEERING, 2021
A simple thermal computation procedure of a metal oxide varistor (MOV) element, in which an impulse current is injected, is presented. The heat in the MOV, composed of many small cells, is computed with the discretized heat transport equation.
Tokuya Tanaka +3 more
semanticscholar +1 more source
A simple thermal computation procedure of a metal oxide varistor (MOV) element, in which an impulse current is injected, is presented. The heat in the MOV, composed of many small cells, is computed with the discretized heat transport equation.
Tokuya Tanaka +3 more
semanticscholar +1 more source
Nano-enabled metal oxide varistors
IEEE Transactions on Dielectrics and Electrical Insulation, 2009Zinc oxide based metal oxide varistors (MOV) are widely used electrical surge protection components. The design of modern high power, high-density electronic systems necessitate the need for smaller footprint, higher current density and higher nonlinearity MOVs.
Daniel Tan +4 more
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ac properties of metal-oxide varistors
Journal of Applied Physics, 1976Measurements of the small-signal ac response of ZnO-based ceramic varistors are reported for frequencies f in the range 30<f<108 Hz and temperatures T in the range −200<T<300 °C. The high effective varistor dielectric constant results from the device microstructure with no detectable electrode contribution.
Lionel M. Levinson, H. R. Philipp
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IEEE transactions on electromagnetic compatibility (Print), 2020
A simple mathematical expression for nonlinear resistive properties of metal oxide varistor (MOV) elements is proposed for electromagnetic and surge simulations using the finite-difference time-domain (FDTD) method.
Tokuya Tanaka +4 more
semanticscholar +1 more source
A simple mathematical expression for nonlinear resistive properties of metal oxide varistor (MOV) elements is proposed for electromagnetic and surge simulations using the finite-difference time-domain (FDTD) method.
Tokuya Tanaka +4 more
semanticscholar +1 more source