Browse > Article

Enhanced Phase Angle Detect Method Using High-pass Filter  

Heo, Min-Ho (전남대 공대 전기공학과)
Song, Sung-Gun (전자부품연구원)
Kim, Gwang-Heon (전남대 공대 전기공학과)
Nam, Hae-Gon (전남대 공대 전기공학과)
Park, Sung-Jun (전남대 공대 전기공학과)
Publication Information
The Transactions of The Korean Institute of Electrical Engineers / v.58, no.12, 2009 , pp. 2370-2378 More about this Journal
Abstract
The enhanced phase angle estimation algorithm is essential to supply the power stably under synchronizing with grid source. In this paper, we are proposed the novel phase angle estimation algorithm and verified the validity of proposed method as simulation with PSIM and experiments. We sort the harmonics element using high-pass filter(HPF) that have the cut-off frequency below basic element and make reverse d-q transformation. So, it can be restored the harmonics element at stationary axis, and we can get the fundamental voltage element of AC grid. Proposed PLL method have a rapid responsibility and a large margin at controller design than conventional method because it have a small phase delay and a sufficient controller gain margin. And, it can reduce the error of voltage rms value and axis transformation according to robust PLL algorithm against the harmonic and phase unbalance.
Keywords
PLL; HPF; Angle estimation algorithm;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
Times Cited By SCOPUS : 0
연도 인용수 순위
1 최형진, 송승호, 정승기, 최주엽, 최익, '3상 계통연계형 인버터를 위한 SRF-PLL 시스템의 동특성 개선', 전력전자학회 논문지, Vol. 14, No.2, 134 - 141, 2008   과학기술학회마을
2 S.-K. Chung, 'Phase-locked loop for grid-connected three-phase power conversionsystem', Electric Power Applications. IEEE Proceedings, Vol. 147, pp. 213-219, 2000, May   DOI   ScienceOn
3 Wei-Neng Chang, Kuan-Dih Yeh, 'Digital design and implementation of fast power frequency and voltage detector with iteration method', PEDS 2003, Vol. 2, 1345 - 1349, 2003
4 Hui-Yung Chu, Huring-Liahng Jou, Ching-Lien Huang, 'Transient Response of a Peak Voltage Detector for Sinusoidal Signals', IEEE Trans. on Industrial Electronics, Vol. 39, No.1, 74 - 79, 1992   DOI   ScienceOn
5 B.D Min, J.P Lee, J.H Kim, T.J Kim, D.W Yoo, K.RR, J.J Kim, E.H Song, 'A Novel Grid-Connected PV PCS with New High Efficiency Converter', International Conference on Power Electronics, pp.478-482, 2007, Oct. 22-26
6 V. Kaura and V. Blasko, 'Operation of a Phase Locked Loop System Under Distorted Utility Conditions', IEEE Transactions on Industy Applications, Vol. 33, No.1, pp. 58-63, 1997   DOI   ScienceOn