Electrostatic discharge impacts on the main shaft bearings of wind turbines [PDF]
Wind Energy Science, 2023 This paper studies the electrostatic discharge effect in wind turbines, a possible trigger source of the main bearing current. A lab setup with a charge generator and downsized wind turbine was built to verify the impact of electrostatic discharge on the
J. Zhao, X. Xu, O. Carlson
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Equilibrium mechanism between dc voltage and ac frequency for ac–dc interlinking converters
iEnergy, 2022 The equilibrium between dc bus voltage and ac bus frequency (Udc-f equilibrium) is the algorithm core of unified control strategies for ac-dc interlinking converters (ILCs), because the equilibrium implements certain mechanism.
Haixu Shi +4 more
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Challenges of Large Converter-Fed Synchronous Machines for Variable-Speed Pumped Hydro Storage
Energies, 2023 The green energy transition of electrical energy production is leading to an increasing share of total energy production for volatile renewable energy sources, mainly wind and solar power. To handle this volatile production, flexible and efficient energy
Stefan Polster +4 more
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End effects in linear tubular motors and compensated position sensorless control based on pulsating voltage injection [PDF]
, 2011 The sensorless position control of permanent-magnet (PM) synchronous motors can be successfully implemented by superimposing a high-frequency voltage signal on the control voltage.
CUPERTINO, Francesco +9 more
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Motor Bearing Damage Induced by Bearing Current: A Review
Machines, 2022 The occurrence of the motor shaft voltage and bearing current caused by the inverter will aggravate bearing damage and lead to the premature failure of bearings.
Jiaojiao Ma +4 more
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Online Evaluation of Turbo-Generator Shaft Fatigue Damage Caused by Subsynchronous Oscillation
IEEE Access, 2020 Subsynchronous oscillation (SSO) fault can cause torsional vibration and fatigue damage of the shafting system, thereby endanger the safe operation of the turbo-generator set.
Dongchao Chen, Yuhao Zhang, Yujiong Gu
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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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IEEE AccessSpace Vector Pulse Width Modulation (SVPWM) is widely utilized in modern motor drive systems due to its superior DC-link voltage utilization, reduced harmonic distortion, and lower torque ripple compared to conventional sinusoidal PWM methods.
Byoung-Wook Jo, Dae-Hyeon Kim, Jin Hur
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Design and test of a novel 1kw Stirling engine generator
Nihon Kikai Gakkai ronbunshu, 2023 This paper describes a practical design of a novel Stirling engine generator and 1kW machine test data. This machine’s configuration is a 4 cylinder double acting Stirling engine coupled with a Halbach PM generator in line.
Tetsumi WATANABE, Kazumasa SHIWAKU
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Research on Traction Motor Bearing Electric Erosion of Metro Vehicle and Its Improvement Measures
机车电传动, 2021 In order to effectively solve the problem of electric erosion of traction motor bearing, from the source of shaft voltage,the cause of common mode voltage was studied, and the parasitic capacitance of motor was analyzed.
Zhixiao LUO
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