Results 11 to 20 of about 240,908 (266)
Influence of Non-Linearity in Losses Estimation of Magnetic Components for DC-DC Converters [PDF]
Energies, 2021 In this paper, the problem of estimating the core losses for inductive components is addressed. A novel methodology is applied to estimate the core losses of an inductor in a DC-DC converter in the time-domain. The methodology addresses both the non-linearity and dynamic behavior of the core magnetic material and the non-uniformity of the field ...
Fabio Corti +4 more
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Известия высших учебных заведений: Проблемы энергетики, 2017 Nowadays SF6-insulated circuit breakers are the most widely used breakers for extra high voltage grids. Operational experience has shown that they are incapable of making fast switching of power transmission lines equipped with shunt reactors due to zero-
S. E. Kasyanov +2 more
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Measurement of the DC current based on magnetic fluids with an orthogonal magnetic field
Measurement + Control, 2020 Measurement of DC current is critically important in a wide range of applications, such as in photovoltaic power generation and DC power transmission. In this paper, the DC current measuring method based on magnetic fluids with orthogonal magnetic fields
Jian-Ying Zhang +4 more
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A component-reduced Zero-Voltage Switching three-level DC-DC converter [PDF]
IECON 2016 - 42nd Annual Conference of the IEEE Industrial Electronics Society, 2016 The basic Zero-Voltage Switching (ZVS) three-level DC-DC converter has one clamping capacitor to realize the ZVS of the switches, and two clamping diodes to clamp the voltage of the clamping capacitor. In order to reduce the reverse recovery loss of the diode as well as its cost, this paper proposes to remove one of the clamping diodes in basic ZVS ...
Zian Qin +3 more
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Energies, 2018 Transformerless grid-connected inverters, due to their advantages of high efficiency, small volume and light weight, have been the subject of more research and interest in recent years.
Long Bo +4 more
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High Voltage, 2022 The valve side of the converter in the high‐voltage direct current is subjected to mixed voltages such as composite AC & DC voltage. In this study, the effects of the homogeneity of electric field on breakdown voltage were investigated for different ±DC ...
Mehmet Murat Ispirli +4 more
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Engineering Science and Technology, an International Journal, 2022 This paper presents the control strategy for parallel operation of an inverter to eliminate DC & AC circulating current. This paper also analyses the cross-current between parallel connected inverter due to the difference in output voltage magnitudes
Ravi Kumar Gupta +2 more
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Adaptive Phasor Estimation Algorithm Based on a Least Squares Method
Energies, 2019 This paper proposes an adaptive phasor estimation algorithm based on a least square method that can suppress the adverse effect of an exponentially decreasing DC offset component in a phasor estimation process. The proposed algorithm is composed of three
Woo-Joong Kim +2 more
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IEEE Access, 2019 Transformerless grid-connected distributed photovoltaic (PV) systems (TGCDPVs) has the merits of high efficiency, small size, and low cost, draws great interest in recent years.
Bo Long +4 more
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Journal of Materials Research and Technology, 2023 In this work, a new current waveform, the AC/DC mix current waveform was employed to improve the microstructure and mechanical properties of 307Si stainless steel component during the TIG based wire arc additive manufacturing (TIG-WAAM).
Chao Chen +3 more
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