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Institute of Korean Electrical and Electronics Engineers (한국전기전자학회)
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A Battery Charger Using Photovoltaic Energy Harvesting with MPPT Control

빛 에너지 하베스팅을 이용한 MPPT 제어 기능을 갖는 배터리 충전기

  • Yoon, Eun-Jung (Dept. of Electronics Engineering, Incheon National University) ;
  • Yang, Min-Jae (Dept. of Electronics Engineering, Incheon National University) ;
  • Yu, Chong-Gun (Dept. of Electronics Engineering, Incheon National University)
  • Received : 2015.04.02
  • Accepted : 2015.05.29
  • Published : 2015.06.30
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Abstract

This paper describes a battery charger using photovoltaic energy harvesting with MPPT control. The proposed circuit harvests maximum power from a PV(photovoltaic) cell by employing MPPT(Maximum Power Point Tracking) control and charges an external battery with the harvested energy. The charging state of the battery is controlled according to the signals from a battery management circuit. The MPPT control is implemented using linear relationship between the open-circuit voltage of a PV cell and its MPP voltage such that a pilot PV cell can track the MPP of a main PV cell in real time. The proposed circuit is designed in a $0.35{\mu}m$ CMOS process technology and its functionality has been verified through extensive simulations. The maximum efficiency of the designed entire system is 86.2% and the chip area including pads is $1.35mm{\times}1.2mm$.

본 논문에서는 빛에너지 하베스팅을 이용한 MPPT(Maximum Power Point Tracking) 제어 기능을 갖는 배터리 충전기를 제안한다. 제안된 회로는 MPPT를 이용하여 빛 에너지를 PV(photovoltaic) 셀로부터 수확하고, 수확한 에너지를 배터리에 연결하여 충전한다. 배터리 관리 회로에서 출력되는 신호에 따라, 배터리의 충전 상태가 조절된다. MPPT 제어는 PV 셀의 개방회로 전압과 MPP 전압간의 비례관계를 이용하여, 보조(pilot) PV 셀로 하여금 주(main) PV 셀의 MPP를 실시간 추적할 수 있도록 설계하였다. 제안된 회로는 $0.35{\mu}m$ CMOS 공정으로 설계하였으며, 모의실험을 통해 성능을 검증하였다. 설계된 회로의 최대 효율은 86.2%이며 칩 면적은 패드를 포함하여$1.35mm{\times}1.2mm$이다.

Keywords

References

  1. D. Doffdi, A. Bertacchini, L. Larcher, P. Pavan, D. Brunelli, and L. Benini, "A solar energy harvesting circuit for low power applications," IEEE ICSET, pp. 945-949, 2008.
  2. K. Kadirvel, Y. Ramadass, U. Lyles, J. Carpenter, V.I vanov, V. McNeil, A. Chandrakasan, B. Lum-Shue-Chan, "A 330nA energy-harvesting charger with battery management for solar and thermoelectric energy harvesting," 2012 IEEE International Solid-State Circuits Conference Digest of Technical Papers, pp. 106-108, 2012.
  3. E. Mendez-Delgado, G. Serranoy and E. I. Ortiz-Rivera, "Monolithic integrated solar energy harvesting system," 35th IEEE PVSC, pp. 2833-2838, 2010.
  4. T. H. Tsai and K. Chen, "A 3.4mW Photovoltaic Energy-Harvesting Charger with Integrated Maximum Power Point Tracking and Battery Management," 2013 IEEE International Solid-State Circuits Conference Digest of Technical Papers, pp. 72-73, 2013.
  5. C. Lu, S. P. Park, V. Raghunathan, and K. Roy, "Low-Overhead Maximum Power Point Tracking for Micro-Scale Solar Energy Harvesting Systems," VLSID, pp.215-220, 2012
  6. X. Li, C.-Y. Tsui, W.-H. Ki, "Solar Energy Harvesting System Design Using Re-configurable Charge Pump," IEEE FTFC, 2012.
  7. C. Lu, V. Raghunathan, and K. Roy, "Maximum Power Point Considerations in Micro-Scale Solar Energy Harvesting Systems," ISCAS, pp. 273-276, 2010.
  8. B. D. Yang, "Start-up Voltage Generator for 250mV Input Boost Converters," Journal of the Korea Institute of Information and Communication Engineering, Vol. 18, No. 5, pp. 1155-1161, 2014. https://doi.org/10.6109/jkiice.2014.18.5.1155
  9. S. Abdelaziz, A. G. Radwan, A. Eladawy, A. N. Mohieldin, A. M. Soliman, "A Low Start-Up Voltage Charge Pump for Energy Harvesting Applications," ICET, 2012.
  10. E. J. Yoon, S. J. Kim, K. Y. Park, W. S. Oh, C. G. Yu, "Design of an Energy Harvesting Circuit Using Solar and Vibration Energy with MPPT Control," Journal of the Korea Institute of Information and Communication Engineering, Vol. 16, No. 11, pp. 2487-2494, 2012. https://doi.org/10.6109/jkiice.2012.16.11.2487
  11. M.-H. Cheng, Z.-W. Wu,, "Low-power low-voltage reference using peaking current mirror circuit," Electronics Letters, pp 572-573, 2005.
  12. MiniSOLAR Solar Energy Harvester - A6041-2V, MiniSOLAR [Online]. Available: http://www.minisolar.co.kr/
  13. NSR0320 datasheet, On Semiconductor, Phoenix, AZ, 2010.
  14. W. G. Li, R. H. Yao, L. F. Guo."A Low Power CMOS Bandgap Voltage Reference with Enhanced Power Supply Rejection," IEEE 8th International Conference on ASICON '09., pp.300-304, 2009.