Results 11 to 20 of about 12,255 (285)
Reduction of the Induced Voltage in the Synchronous Generator Shaft Using Active AC / DC Converter [PDF]
IEEE Access, 2020 Today, synchronous generators are broadly employed in the industry. The thyristor rectifier in the static excitation system of synchronous generators is responsible for supplying the DC voltage of the excitation winding.
Mohamad Rostami Engasi +2 more
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Investigation of Shaft Voltage in Wind Turbine Systems with Induction Generators
IEEJ Transactions on Industry Applications, 2009 This paper presents the analysis of shaft voltage in different configurations of a doubly fed induction generator (DFIG) and an induction generator (IG) with a back-to-back inverter in wind turbine applications. Detailed high frequency model of the proposed systems have been developed based on existing capacitive couplings in IG & DFIG structures and ...
Adabi, J. Afaradabi, Zare, Firuzf
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Energies, 2020 Adjustable speed drives use Pulse Width Modulation (PWM) to switch DC-bus voltage for the synthesis of three-phase voltages to provide power to the permanent magnet synchronous motor (PMSM).
Muhammad Aqil, Jun-Hyuk Im, Jin Hur
doaj +2 more sources
Analysis, Calculation and Reduction of Shaft Voltage in Induction Generators
RE&PQJ, 2009 This paper presents analysis of shaft voltage in different configurations of a Doubly Fed Induction Generator (DFIG) and an Induction Generator (IG) with a back-to-back inverter in wind turbine applications. Detailed high frequency model of the proposed systems have been developed based on existing capacitive couplings in IG & DFIG structures and ...
Adabi, Jafar, Zare, Firuz
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Verification of Shaft Voltage Reduction Effect Using Layered-Shield in EV Traction Motors
IEEE AccessShaft voltage generated in electric vehicle (EV) motors is a critical issue as it can lead to motor performance degradation and damage, potentially resulting in vehicle fault and endangering the driver’s safety.
Jun-Hyeok Heo, Jun-Kyu Kang, Jin Hur
doaj +2 more sources
Analysis of Shaft Voltage in a Doubly-fed Induction Generator
RE&PQJ, 2009 Fast switching transients and common mode voltage generated by pulse width modulated voltage in high frequency applications may cause many unwanted problems such as shaft voltage and resultant bearing currents. The main objective of this research work is to analyse shaft voltage generation in a doubly-fed induction generator (DFIG) with a back to back ...
Adabi Firouzjaee, Jafar +3 more
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Shaft Voltage Suppression of Double-fed Generator for High Power Wind Turbine
Kongzhi Yu Xinxi Jishu, 2013 The mechanism and adverse effects of shaft voltage in double-fed generator generated by inverter is analyzed. As shaft voltage is part of common-mode voltage, a new LCL-filter of converter for suppression of common-mode voltage is proposed through ...
CAO Guorong +5 more
doaj +2 more sources
Different Approaches to Reduce Shaft Voltage in AC Generators
, 2009 This paper presents several shaft voltage reduction techniques for doubly-fed induction generators in wind turbine applications. These techniques includes: pulse width modulated voltage without zero vectors, multi-level inverters with proper PWM strategy, better generator design to minimize effective capacitive couplings in shaft voltage, active common-
Zare, Firuz +2 more
core +3 more sources
End-winding Effect on Shaft Voltage in AC Generators
, 2009 This paper presents effects of end-winding on shaft voltage in AC generators. A variety of design parameters have been considered to calculate the parasitic capacitive couplings in the machine structure with Finite Elements simulations and mathematical calculations.
Adabi Firouzjaee, Jafar +2 more
openaire +2 more sources
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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