Results 21 to 30 of about 1,002,747 (273)
Calculations of capacitive couplings in induction generators to analyse shaft voltage [PDF]
, 2010 This study deals with the analysis of the parameters that are effective in shaft voltage generation of induction generators. It focuses on different parasitic capacitive couplings by mathematical equations, finite-element simulations and experiments. The
Ghosh, A. +12 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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Energies, 2020 Common-mode voltage, caused by a 2-level inverter, is a source of discharge currents in motor bearings. Due to the capacitive coupling, between the stator winding and the rotor, an image of the common-mode voltage is produced on the shaft—which can ...
Jan Ole Stockbrügger, Bernd Ponick
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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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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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Bearing current and shaft voltage measurement in electrical motors
, 2017 Due to the fast-rising voltage pulses of pulse width modulated drives, the generated shaft voltage of electrical motors causes electrical discharge currents in bearings. These discharges can cause bearing failure leading to costly maintenance and unexpected production stops.
Kolic, Edo
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Reduction of Shaft Voltage of IPMSM According to the Shape of the Novel Shield Ring
IEEE AccessRecently, the motor drive system of electric vehicles (EVs) has been increased to high voltage to enhance the output and efficiency of the motor. However, higher voltage exacerbates common-mode voltage (CMV), which is the main cause of bearing faults ...
Jun-Kyu Kang +3 more
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Investigation on Centrifugal Pump Shaft: A Comparison Study of the SME and the Imported Product [PDF]
, 2012 The implementation of the ASEAN-China Free Trade Agreement (ACFTA) forces the small and medium enterprises to have a high competition between the manufacturer from China and the ASEAN member countries.
S, Sugiyanto +3 more
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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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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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