Results 11 to 20 of about 215,914 (279)
EnergiesTurbine generators are essential for power generation, but the presence of shaft voltages and currents poses significant challenges to their reliability, efficiency, and operational lifespan.
Katudi Oupa Mailula, Akshay K. Saha
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Investigation of a Rotating Shaft with a Novel Integrated Wireless Accelerometer [PDF]
, 2010 Rotating shafts are the most critical components of rotating machines such as motors, pumps, engines and turbines. Due to their heavy workloads, defects are more likely to develop during operation.
Gu, Fengshou +3 more
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Rotor Misalignment Detection using a Wireless Sensor and a Shaft Encoder [PDF]
, 2010 Mechanical systems such as motors, pumps, engines, and turbine are all operating based on different shafts. Due to unexpected operating conditions, various faults such as cross-sectional cracks, looseness and misalignment may occur during their service ...
Gu, Fengshou, Ball, Andrew, Arebi, Lufti
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Modeling and reduction of shaft voltages in AC motors fed by frequency converters [PDF]
, 2006 This thesis deals with the modeling and mitigation of shaft voltages and bearing currents in frequency converter-fed AC motors. Common-mode voltages produced by modern frequency converters can cause destructive currents in motor bearings.
Mäki-Ontto, Petri
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Electrical bearing failures in electric vehicles
Friction, 2020 In modern electric equipment, especially electric vehicles, inverter control systems can lead to complex shaft voltages and bearing currents. Within an electric motor, many parts have electrical failure problems, and among which bearings are the most ...
Feng He, Guoxin Xie, Jianbin Luo
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Energies, 2020 The paper firstly summarizes a simple analytical model of the air gap flux-density distribution for isotropic permanent magnet (PM) synchronous machines, in the presence of static eccentricity.
Andrea Del Pizzo +2 more
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IEEE Access, 2021 Nonideal switching characteristics of voltage source inverter (VSI) will result in distortions in both phase currents and reference voltages of a permanent magnet synchronous machine (PMSM) drive system, which will also consequently introduce ripples ...
Shichao Zhou +7 more
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Robotics, 2021 The paper deals with software sensors which facilitates the diagnosis of electrical machines in non-stationary operating conditions. The technique targeted is order tracking for which different techniques exist to estimate the speed and angle of rotation.
Laurent Rambault +5 more
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IEEE Access, 2019 To realize the non-contact measurement of the rotational shaft centerline orbit, a shaft centerline orbit reconstruction method using a specifically designed electrostatic sensor in conjunction with the neural network approximator is proposed in this ...
Kaihao Tang +4 more
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Effect of asymmetry of supply voltages on asynchronous motor operation modes
E3S Web of Conferences, 2018 Effect of asymmetry of supply voltages on asynchronous motor operation modes was investigated using the computer-aided simulation experiments, the software complex Matlab and the package program Simulink.
Romanova Victoria, Khromov Sergey
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