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논문 기본 정보

자료유형
학술저널
저자정보
Zhaoxu Luo (Central South University) Mei Su (Central South University) Yao Sun (Central South University) Zhangjie Liu (Central South University) Mi Dong (Central South University)
저널정보
전력전자학회 JOURNAL OF POWER ELECTRONICS JOURNAL OF POWER ELECTRONICS Vol.16 No.5
발행연도
2016.9
수록면
1,939 - 1,949 (11page)

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초록· 키워드

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This paper presents an alternative frequency adaptive grid synchronization technique named HDN-FLL, which can accurately extract the fundamental positive- and negative-sequence components and interested harmonics in adverse three-phase grid voltage. The HDN-FLL is based on the harmonic decoupling network (HDN) consisting of multiple first order complex vector filters (FOCVF) with a frequency-locked loop (FLL), which makes the system frequency adaptive. The stability of the proposed FLL is strictly verified to be global asymptotically stable. In addition, the linearization and parameters tuning of the FLL is also discussed. The structure of the HDN has been widely used as a prefilter in grid synchronization techniques. However, the stability of the general HDN is seldom discussed. In this paper, the transfer function expression of the general HDN is deduced and its stability is verified by the root locus method. To show the advantages of the HDN-FLL, a simulation comparison with other gird synchronization methods is carried out. Experimental results verify the excellent performance of the proposed synchronization method.

목차

Abstract
Ⅰ. INTRODUCTION
Ⅱ. FLL
Ⅲ. HDN-FLL
Ⅳ. SIMULATION RESULTS
Ⅴ. EXPERIMENTAL RESULTS
Ⅵ. CONCLUSIONS
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