Journal of the Korean Solar Energy Society (한국태양에너지학회 논문집)

The Korean Solar Energy Society (한국태양에너지학회)
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High Speed Grid Voltage Detection Method for 3 Phase Grid-Connected Inverter during Grid Faults

전원사고 시 3상 계통연계 인버터의 전원 전압 고속 검출 방법

  • Choi, Hyeong-Jin (Dept. of Electrical Engineering, Kwangwoon University) ;
  • Song, Seung-Ho (Dept. of Electrical Engineering, Kwangwoon University) ;
  • Jeong, Seung-Gi (Dept. of Electrical Engineering, Kwangwoon University) ;
  • Choi, Ju-Yeop (Dept. of Electrical Engineering, Kwangwoon University) ;
  • Choy, Ick (Dept. of Information Control Engineering, Kwangwoon University)
  • 최형진 (광운대학교 전기공학과) ;
  • 송승호 (광운대학교 전기공학과) ;
  • 정승기 (광운대학교 전기공학과) ;
  • 최주엽 (광운대학교 전기공학과) ;
  • 최익 (광운대학교 정보제어공학과)
  • Published : 2009.10.30
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Abstract

The new method is proposed to improve high speed detection of grid voltage phase and magnitude during a voltage dip due to a grid faults. Usually, A LPF(Low Pass Filter) is used in the feedback loop of PLL (Phase Locked Loop) system because the measured grid voltage contains harmonic distortions and sensor noises. so, a new design method of the loop gain of the PI -type controller in the PLL system is proposed with the consideration of the dynamics of the LPF. As a result, a better transient response can be obtained with the proposed design method. The LPF frequency and PI controller gain are designed in coordination according to the steady state and dynamic performance requirement. This paper shows the feasibility and the usefulness of the proposed methods through the computer simulation and the lab-scale experiments.

Keywords

References

  1. S.-J. Lee, S.-K. SuI, 'A New Phase Detecting Method for Power Conversion Systems' IEEE Industry Applications Conference , Vol.4, Oct. 1999
  2. P. Rodriguez 'Fault ride-through capability implementation in wind turbine converters using a decoupled double synchronous reference frame PLL' Power Electronics and Applications, 2007 European Conference on 2-5 Sept . 2007
  3. P.Rdunguez 'Decuopled Double Synchronous Reference Frame PLL for Power Converters Control. IEEE TRANSACTIONS ON POWER ELECTRONICS , VOL. 22, NO.2, MARCH 2007
  4. S.- K. Chung, 'Phase-locked loop for grid connected three-phase power conversion system', Electric Power Applications, lEE Proceedings, Volume 147, Issue 3. May 2000
  5. Se-Kyo Chung, 'A phase tracking system for three phase utility interface inverters 'Power Electronics, IEEE Transactions on Volume 15, Issue 3. pp. 431-438. May. 2000
  6. M. Kamata, T. Shono, T. Saba, I. Sasase, S. Mori, 'Third-order phase-locked loops using dual loops with improved stability', IEEE Pacific Rim Conference. Volume 1 pp. 20-22, Aug. 1997
  7. J.K. Kang and S.K. SuI, 'Control of unbalanced voltage PWM converter using instantaneous, ripple power feedback', in Proc. IEEE-PESC Ann. Meet., pp,503-508, 1997
  8. Timbus, A.V., Teodorescu, R., Blaabjerg, F., Liserre , M., Rodriguez, P., 'PLL Algorithm for Power Generation Systems Robust to Grid Voltage Faults', Power Electronics Specialists Conference, Page(s):1 - 7. June. 2006
  9. S. Song, S. Kang and N. Hahm, 'Implementation and control of gridconnected AC- DC- AC power converter for variable speed wind energy conversion system,' in Proc. 2003 IEEE Applied Power Electronics Conference and Exposition, pp.154-158 vol.1. 2003
  10. Hyeong-Jin Choi, Seung-Ho Song, Seung-Gi Jeong, Ju-Yeop Choi, Ick Choy 'Design of SRD-F-PLL system with consideration of low-pass filter for high dynamic performance during voltage disturbance' Power Electronics and Motion Control Conference, 2009. IPEMC '09. IEEE 6th International Page(s):720-724.17-20. May 2009
  11. 최형진, 송승호, 정승기, 최주엽, 최익 '3상 계통연계형 인버터를 위한 SRF-PLL 시스템의 동특성 개선' 전력전자학회논문지 제14권 제2호, pp. 134-141. 2009. 4