DOI QR코드

DOI QR Code

High-Efficiency Power Conditioning System for Grid-Connected Photovoltaic Modules

  • Choi, Woo-Young (Division of Electronic Engineering, Chonbuk National University) ;
  • Choi, Jae-Yeon (Division of Electronic Engineering, Chonbuk National University)
  • 투고 : 2011.02.26
  • 발행 : 2011.07.20

초록

This paper presents a high-efficiency power conditioning system (PCS) for grid-connected photovoltaic (PV) modules. The proposed PCS consists of a step-up DC-DC converter and a single-phase DC-AC inverter for the grid-connected PV modules. A soft-switching step-up DC-DC converter is proposed to generate a high DC-link voltage from the low PV module voltage with a high-efficiency. A DC-link voltage controller is presented for constant DC-link voltage regulation. A half-bridge inverter is used for the single-phase DC-AC inverter for grid connection. A grid current controller is suggested to supply PV electrical power to the power grid with a unity power factor. Experimental results are obtained from a 180 W grid-connected PV module system using the proposed PCS. The proposed PCS achieves a high power efficiency of 93.0 % with an unity power factor for a 60 Hz / 120 Vrms AC power grid.

키워드

과제정보

연구 과제 주관 기관 : NRF

참고문헌

  1. B. D. Min, J. P. Lee, J. H. Kim, T. J. Kim, D. W. Yoo, K. R. Ryu, J. J. Kim, and E. H. Song, "A novel grid-connected PV PCS with new high efficiency converter," Journal of Power Electronics, Vol. 8, No. 4, pp. 309-316, Oct. 2008.
  2. M. Aiello, A. Cataliotti, S. Favuzza, and G. Graditi, "Theoretical and experimental comparison of total harmonic distortion factors for the evaluation of harmonic and interharmonic pollution of grid-connected photovoltaic systems," IEEE Trans. Power Delivery, Vol. 21, No. 3, pp. 1390-1397, Jul. 2006. https://doi.org/10.1109/TPWRD.2005.860231
  3. S. B. Kjaer, J. K. Pedersen, and F. Blaabjerg, "A review of single-phase grid-connected inverters for photovoltaic modules," IEEE Trans. Industry Applications, Vol. 41, No. 5, pp. 1292-1306, Sep. 2005. https://doi.org/10.1109/TIA.2005.853371
  4. Q. Li and P. Wolfs, "A review of the single phase photovoltaic module integrated converter topologies with three different DC link configurations," IEEE Trans. Power Electronics, Vol. 23, No. 3, pp. 1320-1333, May 2008. https://doi.org/10.1109/TPEL.2008.920883
  5. L. Zhang, K. Sun, Y. Xing, L. Feng, and H. Ge, "A modular gridconnected photovoltaic generation system based on DC bus," IEEE Trans. Power Electronics, Vol. 26, No. 2, pp. 523-531, May 2011. https://doi.org/10.1109/TPEL.2010.2064337
  6. D. C. Martins, and R. Demonti, "Grid-connected PV system using two energy processing stages," in Proc. IEEE Photovoltaic Specialists Conference, pp. 1649-1652, 2002.
  7. S. Saha and V. P. Sundarsingh, "Novel grid-connected photovoltaic inverter," in Proc. IEE Gener. Transm. Distrib., Vol. 143, No. 2, pp. 219-224, 1996. https://doi.org/10.1049/ip-gtd:19960054
  8. F. Chan and H. Calleja, "Design strategy to optimize the reliability of grid-connected PV systems," IEEE Trans. Ind. Electron., Vol. 56, No. 11, pp. 4465-4472, Nov. 2009. https://doi.org/10.1109/TIE.2008.928100
  9. C. Rodriguez and G. A. J. Amaratunga, "Long-lifetime power inverter for photovoltaic AC modules," IEEE Trans. Ind. Electron., Vol. 55, No. 7, pp. 2593-2601, Jul. 2008. https://doi.org/10.1109/TIE.2008.922401
  10. M. Cacciato, A. Consoli, R. Attanasio, and F. Gennaro, "Soft-switching converter with HF transformer for grid-connected photovoltaic systems," IEEE Trans. Ind. Electron., Vol. 57, No. 5, pp. 1678-1686, May 2010. https://doi.org/10.1109/TIE.2009.2032201
  11. H. S. Bae, J. H. Park, B. H. Cho, and G. J. Yu, "New MPPT control strategy for two-stage grid-connected photovoltaic power conditioning system," Journal of Power Electronics, Vol. 7, No. 2, pp. 174-180, Apr. 2007.
  12. H. E. Park and J. H. Song, "A dP/dV feedback-controlled MPPT method for photovoltaic power system using II-SEPIC," Journal of Power Electronics, Vol. 9, No. 4, pp. 604-611, Jul. 2009.
  13. J. M. Kwon, K. H. Nam, and B. H. Kwon, "Photovoltaic power conditioning system with line connection," IEEE Trans. Ind. Electron., Vol. 53, No. 4, pp. 1048-1054, Aug. 2006.
  14. M. Ciobotaru, V. G. Agelidis, R. Teodorescu, and F. Blaabjerg, "Accurate and less-disturbing active anti-islanding method based on PLL for gridconnected converters," IEEE Trans. Power Electron., Vol. 25, No. 6, pp. 1576-1584, Jun. 2010. https://doi.org/10.1109/TPEL.2010.2040088

피인용 문헌

  1. A PV Power Conditioning System Using Nonregenerative Single-Sourced Trinary Asymmetric Multilevel Inverter With Hybrid Control Scheme and Reduced Leakage Current vol.32, pp.10, 2017, https://doi.org/10.1109/TPEL.2016.2632864
  2. Novel High Step-Up DC/DC Converter Structure Using a Coupled Inductor with Minimal Voltage Stress on the Main Switch vol.16, pp.6, 2016, https://doi.org/10.6113/JPE.2016.16.6.2005
  3. Bi-Directional Multi-Level Converter for an Energy Storage System vol.14, pp.3, 2014, https://doi.org/10.6113/JPE.2014.14.3.499
  4. PV-Module-Integrated AC Inverters (AC Modules) With Subpanel MPP Tracking vol.32, pp.8, 2017, https://doi.org/10.1109/TPEL.2016.2615078
  5. Simulation of FPGA controlled Single Stage Boost Inverter for the Applications of Grid Connected Photovoltaic System 2017, https://doi.org/10.1177/0037549717705466
  6. A Fully Soft-Switched Single Switch Isolated DC–DC Converter vol.30, pp.9, 2015, https://doi.org/10.1109/TPEL.2014.2363830
  7. Isolated High Step-Up DC–DC Converter With Low Voltage Stress vol.29, pp.7, 2014, https://doi.org/10.1109/TPEL.2013.2282813
  8. A New High Step-Up DC/DC Converter Structure by Using Coupled Inductor with Reduced Switch-Voltage Stress vol.45, pp.15, 2017, https://doi.org/10.1080/15325008.2017.1367977