Results 231 to 240 of about 1,887,401 (270)
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Investigation on the shaft voltage generation of large synchronous turboalternators
COMPEL - The international journal for computation and mathematics in electrical and electronic engineering, 2020Purpose This paper aims to go deeper on the analysis of the shaft voltage of large turbogenerators. The main interest of this study is the investigation process developed. Design/methodology/approach The analysis of the shaft voltage because of several defects is based on a two-dimensional (2D) finite element modeling.
Kevin Darques +3 more
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PROTECTION RELAY FOR SHAFT CURRENT AND VOLTAGE
2015Electric power system is a backbone of contemporary technical civilization and today’s economy. Functioning is not possible without stable, uninterruptable supply of electric energy that is needed both in industry and in most areas of our private lives.
Elez, Ante +4 more
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An influence of voltage sag on nonutility generator shaft torque
2000 Power Engineering Society Summer Meeting (Cat. No.00CH37134), 2002An influence of the voltage sag on the shaft torque of the nonutility generator connecting to the utility system is investigated. During the oscillation of the generator electromagnetic torque, the mechanical shaft torque also oscillates according to the mechanical oscillation modes. In this situation, the shaft might be damaged.
T. Funabashi +5 more
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Proposing the New Layered-Shield Structure for Shaft Voltage Reduction in IPMSM
IEEE Transactions on Transportation ElectrificationAs the era of electrification advances, the demand for increased power density and high efficiency in electric motors, such as those in electric vehicles (EVs) and e-mobility, has been rising.
Jun-Hyeok Heo +3 more
semanticscholar +1 more source
Shaft voltage suppression for inverter-driven induction motor applying SHEPWM
2008 IEEE Vehicle Power and Propulsion Conference, 2008In order to reduce the common mode (CM) voltage and shaft voltage for induction motor driven by inverter, an Improved Selective Harmonics Elimination Pulse Width Modulation (ISHEPWM) method was proposed in this paper. First ISHEPWM eliminates certain low order components of common mode voltage (CMV) generated by inverter.
Yu-lin Zhong, Zheng-ming Zhao
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Induction motor eccentricity diagnosis using impedance spectrum and shaft voltage
The XIX International Conference on Electrical Machines - ICEM 2010, 2010The paper is devoted to experimental investigations of the induction motor rotor eccentricity problem by the use of displacement of the rotor centerline in the stator bore. The changes in the impedance spectrum and the shaft voltage have been analyzed.
G. G. Rogozin, D. Y. Osipov
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IEEE Transactions on Industry Applications, 2000
This paper presents test results on problems and solutions of motor shaft voltages and bearing currents in medium-voltage pulsewidth modulated (PWM) drive systems. Tests show that multilevel medium-voltage PWM voltage-source inverter drives can cause motor bearing currents, similar to a low-voltage PWM drives, even with one motor bearing insulated ...
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This paper presents test results on problems and solutions of motor shaft voltages and bearing currents in medium-voltage pulsewidth modulated (PWM) drive systems. Tests show that multilevel medium-voltage PWM voltage-source inverter drives can cause motor bearing currents, similar to a low-voltage PWM drives, even with one motor bearing insulated ...
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EPE
Shaft voltage is commonly found in induction motors. Shaft voltages occur in the motor, which is supplied by frequency inverter, but also in motors supplied directly from electrical network.
Stanislav Rusnok +2 more
semanticscholar +1 more source
Shaft voltage is commonly found in induction motors. Shaft voltages occur in the motor, which is supplied by frequency inverter, but also in motors supplied directly from electrical network.
Stanislav Rusnok +2 more
semanticscholar +1 more source
Design Study on Consequent Pole Motor for Mitigation of Shaft Voltage Considering Shaft Leakage Flux
Intermag 2024 Presentation: VP10: Numerical, Semi-analytical and Analytical Analysis Methods ...Han-Joon Yoon +5 more
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A Review of Shaft Voltages and Bearing Currents in EV and HEV Motors
Annual Conference of the IEEE Industrial Electronics Society, 2016Trevor Hadden +6 more
semanticscholar +1 more source