전기 추진선박의 전력변환장치 성능 분석에 관한 연구
A Study on the Performance Analysis for Power Converters of Electric Propulsion Ship
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초록
Electric propulsion motors are operated from a variable frequency drive, which supplies power to motors at a frequency appropriate to the desired speed. The objective of this study was to evaluate power converters for shipboard applications and to recommend converters that meet lower harmonic distortion levels and torque ripples. Two systems were studied in detail:Cyclo-converters and PWM-converters. Cyclo-converters are the obvious choice where size, weight and efficiency are the most critical issues. However they have a disadvantage in power factor and they produce severe torque ripples in the motor which makes them unacceptable without special systems. PWM-converters produces better motor current waveform and eliminates common mode voltage issues at the motor, but suffers a multiple stages of power conversion and the isolating transformer. Results of this case study show that PWM-converters are more advanced and efficient drives for induction motor of electric propulsion ship.
Abstract
Electric propulsion motors are operated from a variable frequency drive, which supplies power to motors at a frequency appropriate to the desired speed. The objective of this study was to evaluate power converters for shipboard applications and to recommend converters that meet lower harmonic distortion levels and torque ripples. Two systems were studied in detail:Cyclo-converters and PWM-converters. Cyclo-converters are the obvious choice where size, weight and efficiency are the most critical issues. However they have a disadvantage in power factor and they produce severe torque ripples in the motor which makes them unacceptable without special systems. PWM-converters produces better motor current waveform and eliminates common mode voltage issues at the motor, but suffers a multiple stages of power conversion and the isolating transformer. Results of this case study show that PWM-converters are more advanced and efficient drives for induction motor of electric propulsion ship.
참고문헌 (8)
- Adnanes, A.K., "Maritime Electrical Installations and Diesel Electric Propulsion" (2003), ABB Marine AS
- David Gritter, "Variable Speed Electric Drive Options for Electric Ships", Electric Ship Technologies Symposium, pp.347~354 (2005)
- 문양경, "LNG운반선 전기 추진 계통의 개요", 한국마린엔지니어링학회지, 31(6), pp.16~28 (2007)
- Ned Mohan, "Power Electronics Converters, Applications, and Design" (2003), John Wiley
- Damir Radan, ""Power Electronic Converters for Ship Propulsion Electric Motors", Marine Cybernetics-Energy Management Systems, ABB Marine AS", 2007
- J, Arrillaga, "Power System Harmonics" (1985), John Wiley and Sons
- J. Pedra, "Harmonics modeling of induction motors", Electric Power Systems Research 76, pp.936~944 (2006)
- A.F. Zobaa, "A new approach for voltage harmonic distortion minimization", Electric Power Systems Research 70(2004), pp.253~260 (2004)