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학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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이 논문의 연구 히스토리 (4)
2014
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In this paper, the new LLCL filter is proposed for grid connected three-phase PWM inverter for passive damping. LLCL filter inserts a small inductor in the branch of the capacitor of the traditional LCL filter to compose a series resonant circuit to reduce the switching-frequency component on grid current. Using LLCL filter, the switching-frequency current ripple components can be attenuated much better than the LCL filter, leading to a decrease in the total inductance. However, the resonance phenomena caused by zero impedance from the addition of LC branch in LLCL filter can be a big problem. Resonance phenomena of LLCL filter can be a source of grid system instability, so proper damping methods are required. However, it is difficult to apply a passive damping method in the conventional LLCL filter, because the damping resistor increase impedance of the LC branch. Therefore, switching frequency component of grid current can not much attenuated by low Q of LC series resonance effect. In this paper, a new LLCL filter is proposed to overcome the conventional LLCL filter with passive damping. The validity of the proposed method is proven by simulation and experimental result.
목차
Abstract
1. 서론
2. LLCL 필터의 모델링 및 기존방식의 문제점
3. 제안하는 새로운 LLCL 필터
4. 시뮬레이션 및 실험 결과
5. 결론
References
참고문헌 (9)
참고문헌 신청
1. [기타자료] - / / IEEE std. 519-1992-IEEE Recommended Practices and Requirement for Harmonic Control in Electrical Power Systems–IEEE Industry Applications Society/Power Engineering Socitey
2. [학술대회논문] - M. Liserre / 2005 / Design and Control of an LCL-filter based Three-phase Active Rectifier / IEEE Trans. On. Ind. Appl 41 (5)
3. [학술대회논문] - Weimin Wu / 2012 / An LLCL Power Filter for Single-Phase Grid-Tied Inverter / IEEE Trans. on Power Electronics 25 (2) : 782 ~ 789
4. [학술대회논문] - W. sun / 2008 / An Over View of Damping Methods for Three-phases PWM Rectifier / Proc of IEEE ICIT : 1 ~ 5
5. [학술대회논문] - P. K. Dahono / 2004 / A Control Method for DC-DC Converter that has an LCL output filter based on new virtual capacitor and resistor concept / Proceedings of PESC'04 : 36 ~ 42
2. [학술대회논문] - M. Liserre / 2005 / Design and Control of an LCL-filter based Three-phase Active Rectifier / IEEE Trans. On. Ind. Appl 41 (5)
3. [학술대회논문] - Weimin Wu / 2012 / An LLCL Power Filter for Single-Phase Grid-Tied Inverter / IEEE Trans. on Power Electronics 25 (2) : 782 ~ 789
4. [학술대회논문] - W. sun / 2008 / An Over View of Damping Methods for Three-phases PWM Rectifier / Proc of IEEE ICIT : 1 ~ 5
5. [학술대회논문] - P. K. Dahono / 2004 / A Control Method for DC-DC Converter that has an LCL output filter based on new virtual capacitor and resistor concept / Proceedings of PESC'04 : 36 ~ 42
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