Results 1 to 10 of about 11,261 (119)
Optimization of voltage differential protection for UHVDC transmission line [PDF]
电力工程技术, 2022 Ground fault tests of ultra-high voltage direct current (UHVDC) transmission line indicate that voltage differential protection of the other pole may be false tripped when the ground fault happens on the line of the pole with a larger number of operating
YANG Jianming +4 more
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A high-frequency modeling of AC motor in a frequency range from 40 Hz to 110 MHz
Electrical engineering & Electromechanics, 2022 Introduction. Most electromagnetic compatibility models developed for the study of three-phase induction machines are generally valid for low and medium frequencies (
H. Miloudi +5 more
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IEEE Open Access Journal of Power and Energy, 2023 Common-mode voltage and current in an electric machine are undesirable. Although the strategic placement of a common-mode inductor and dc input side capacitors may reduce the common-mode current produced by an electric drive system, the effectiveness of ...
Harshita Singh, Scott D. Sudhoff
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Energies, 2022 The high frequency PWM voltage pulses from a two-level six-switch inverter produce a common-mode voltage in an electric machine’s windings, a fraction of which appears on the machine shaft due to electrostatic (capacitive) coupling.
Ryan Collin +2 more
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IEEE Access, 2021 We present a time-domain numerical method for calculating the current propagating through coaxial lines including the radiation effect. In previous studies of transmission lines using the retarded potential integral equations (RPIE), the so-called thin ...
Shuji Kitora +3 more
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Performance of Common-Mode Chokes [PDF]
IEEE Industry Applications Magazine, 2010 A low-cost method for experimental investigation of common-mode chokes for reducing high-frequency motor ground-currents of inverter-based drive systems of several hundred kW is presented. It provides a powerful tool during the design stage of such chokes to verify their predicted performance.
Muetze, Annette, Heng, Bee See
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Modeling Common-Mode Current Due to Asymmetric Aging of Machine Winding Insulation
Complex System Modeling and Simulation, 2023 Machine stator winding insulation degradation is one of the main results of machine aging. It is non-negligible once this degradation process becomes asymmetric between phases.
Jin Zhao, Aaron D. Brovont
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IEEE Access, 2021 The emergence of fast-switching wide-bandgap (GaN, SiC) power electronics devices has enabled motor drive systems to achieve high efficiency, power density, control bandwidth and high-level of integration.
Yipu Xu +6 more
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Experimental Study of Radiated Emission Due to Secondary Common-Mode Current in Buck Converters
Applied Sciences, 2023 High switching frequency and fast switching speed of wide bandgap power semiconductor device-based power converters may increase radiated emissions more than conventional silicon-power device-based power converters.
Shotaro Takahashi
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IEEE Access, 2023 This article presents a circuit simulation-based design method for common-mode (CM) transformer-less hybrid EMI filters (HEFs) to obtain the required CM current attenuation.
Shotaro Takahashi
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