지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2013.5
- 수록면
- 469 - 478 (10page)
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초록· 키워드
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This paper proposes a novel scheme for the current controller for the grid-side converter (GSC) of permanent-magnet synchronous generator (PMSG) wind turbines to eliminate the high-order harmonics in the grid currents under grid voltage disturbances. The voltage unbalance and harmonics in three-phase systems cause grid current distortions. In order to mitigate the input current distortions, multi-loop current controllers are applied, where the positive-sequence component is regulated by proportional-integral (PI) controllers, and the negative-sequence and high-order harmonic components are regulated by proportional-resonance (PR) controllers. For extracting the positive/negative-sequence and harmonic components of the grid voltages and currents without a phase delay or magnitude reduction, composite observers are applied, which give faster and more precise estimation results. In addition, an active damping method using PR controllers to damp the grid current component of the resonant frequency is employed to improve the operating stability of VSCs with inductor-capacitor-inductor (LCL) filters. The validity of the proposed method is verified by simulation and experimental results.
목차
Abstract
I. INTRODUCTION
II. DESCRIPTION OF GRID CONVERTERS
III. PMSG WIND TURBINE SYSTEMS
IV. COMPOSITE OBSERVERS
V. CONTROL OF GRID-SIDE CONVERTERS
VI. SIMULATION RESULTS
VII. EXPERIMENTAL RESULTS
VIII. CONCLUSIONS
REFERENCES
참고문헌 (21)
참고문헌 신청
K. Hatua / 2012 / Active damping of output LC filter resonance for vectorcontrolled VSI-fed AC motor drives / IEEE Trans. Ind. Electron 59(1):334~342
D.-E. Kim / 2010 / Feedback linearization control of three-phase UPS inverter systems / IEEE Trans. Ind. Electron 57(3):963~968
M. Liserre / 2006 / Stability of photovoltaic and wind turbine grid-connected inverters for a large set of grid impedance values / IEEE Trans. Power. Electron 21(1):263~272
Xueguang Zhang / 2012 / Improved Grid Voltage Control Strategy for Wind Farms with DFIGs Connected to Distribution Networks / Journal of Power Electronics 12(3):495~502
H.-S. Song / 1999 / Dual current control scheme for PWM converter under unbalanced input voltage conditions / IEEE Trans. Ind. Electron 46(5):953~959
D.-E. Kim / 2010 / Feedback linearization control of three-phase UPS inverter systems / IEEE Trans. Ind. Electron 57(3):963~968
M. Liserre / 2006 / Stability of photovoltaic and wind turbine grid-connected inverters for a large set of grid impedance values / IEEE Trans. Power. Electron 21(1):263~272
Xueguang Zhang / 2012 / Improved Grid Voltage Control Strategy for Wind Farms with DFIGs Connected to Distribution Networks / Journal of Power Electronics 12(3):495~502
H.-S. Song / 1999 / Dual current control scheme for PWM converter under unbalanced input voltage conditions / IEEE Trans. Ind. Electron 46(5):953~959
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UCI(KEPA) : I410-ECN-0101-2014-500-003575702