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
- 학술대회자료
- 저자정보
- 발행연도
- 2015.6
- 수록면
- 978 - 983 (6page)
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초록· 키워드
오류제보하기
LCL-filter is broadly utilized to attenuate the switching harmonic ripple generated from the PWM (Pulse Width Modulation) based converters and inverters. However, due to the resonance problem the stability issue should be overcome. Among many solutions, notch filter based active damping is effective solution for not needing additional sensor and damping resistor. But that strategy is vulnerable to filter parameter variation, which varies the resonant frequency.
This paper proposes adaptive notch filter concept for a single-phase inverter in considering parameter variation of two inductors with respect to current. Due to that estimation performance, it provides with a size and costeffective solution for selecting filter materials. Also, this adaptive filter can be designed narrower, which realizes less phase attenuation, thereby securing more loop gain of total system. Therefore, current control loop secures higher bandwidth. Simulation verification of the proposed method is given through MATLAB/Simulink and PSIM software.
This paper proposes adaptive notch filter concept for a single-phase inverter in considering parameter variation of two inductors with respect to current. Due to that estimation performance, it provides with a size and costeffective solution for selecting filter materials. Also, this adaptive filter can be designed narrower, which realizes less phase attenuation, thereby securing more loop gain of total system. Therefore, current control loop secures higher bandwidth. Simulation verification of the proposed method is given through MATLAB/Simulink and PSIM software.
목차
Abstract
I. INTRODUCTION
II. ANALYSIS OF FILTER RESONANCE UNDER INDUCTANCE VARIATION
III. LIMITATION OF CONVENTIONAL NOTCH FILTER BASED ACTIVE DAMPING
IV. CONTROL AND DESIGN OF PROPOSED ADAPTIVE NOTCH FILTER BASED ACTIVE DAMPING
V. ANALYSIS AND SIMULATION OF THE SYSTEM
VI. CONCLUSIONS
REFERENCES
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