The Journal of the Institute of Internet, Broadcasting and Communication (한국인터넷방송통신학회논문지)

The Institute of Internet, Broadcasting and Communication (한국인터넷방송통신학회)
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Development of Fuzzy controller for battery cell balancing of agricultural drones

농업용 드론의 배터리 셀 밸런싱을 위한 퍼지제어기 개발

  • 이상현 (호남대학교 컴퓨터공학과)
  • Received : 2017.08.21
  • Accepted : 2017.10.13
  • Published : 2017.10.31
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Abstract

Lithium polymer batteries are used in energy storage systems (ESS), electric vehicles (EVs), etc. due to their high safety, fast charging and long lifecycle, and now they are used in agricultural drones. However, when overcharging and overdischarging, the lithium-polymer battery is destroyed in the gap structure in the lithium-ion battery and the battery life is reduced. In order to prevent overcharge and overdischarge, uneven cell voltage Cell balancing system is needed. In this paper, a fuzzy controller suitable for nonlinear systems is proposed by detecting the unbalanced cells by detecting the voltage difference between charging and discharging of each cell, and suggesting the applied cell balancing algorithm. In this paper, we have designed the cell balancing of the battery pack of agricultural drones by fuzzy control and it is designed for equal control between cells. As a final result, we checked whether cell balancing is good, and when there are two cells, Cell balancing was confirmed. We tested whether it could be used for other products. As a result, we confirmed that cell balancing is good regardless of the number of cells used.

리튬 폴리머 배터리는 높은 안전성, 빠른 충전 및 긴 라이프 사이클 등으로 인해 에너지 저장치(ESS: Energy Storage System), 전기자동차(EVs: Electric Vehicles)등에 채택이 되어 사용되고 있으며, 그리고 현재는 농업용 드론에서 까지 사용이 되고 있다. 그러나 리튬 폴리머 배터리는 과충 방전에는 리튬-이온 배터리 내의 격차구조가 파괴되어 배터리 수명이 줄어들게 되며, 과충 방전을 방지하기 위해 불균등한 셀 전압을 균등 제어 할 수 있는 셀 밸런싱 시스템이 필수적이다. 본 논문은 각 셀의 충 방전할때의 전압차이를 검출하여 불균형된 셀을 확인하여 비선형 시스템에 적합한 퍼지 제어기를 개발하여 적용한 셀별 밸런싱 알고리즘을 제안한다. 본 논문은 농업용 드론의 배터리팩의 셀 밸런싱을 퍼지제어를 하여 셀 간 균등 제어를 위해 설계하였으며, 최종 결과로 셀 간 밸런싱이 잘 되는지 확인하고 자 셀이 2개 있을 때와 6개 그리고 최종적으로 12개의 각 셀 밸런싱이 되는지를 확인하였다. 이는 다른 제품에도 사용할 수 있는지를 실험하고자 하였으며, 확인결과 사용된 셀의 개수와는 관계없이 셀별 밸런싱이 잘 되고 있음을 확인하였다.

Keywords

References

  1. Xiangjun Li, Dong Hui, Xiaokang Lai, "Battery Energy Storage Station (BESS)-Based Smoothing Control of Photovoltaic (PV) and Wind Power Generation Fluctuations," Sustainable Energy, IEEE Transactions on, Vol. 4, No. 2, pp. 464-473, 2013. https://doi.org/10.1109/TSTE.2013.2247428
  2. Y. S. Lee, J. Y. Duh, "Fuzzy-controlled individual-cell equaliser using discontinuous inductor current-mode Cuk convertor for lithium-ion chemistries", IEE Proc.-Electr. Power Appl, Vol. 152, No. 5, pp. 1271-1282, 2005 (DOI: 10.1049/ip-epa:20050017).
  3. B. J. Lee , G. J. Choi, S. H. Lee, Y. M. Jeong, Y. Park, D. U. Cho, "A Study on Explosion and Fire Risk of Lithium-Ion and Lithium-Polymer Battery", The Journal of Korean Institute of Communications and Information Sciences, Vol. 42, No. 04, 2017.
  4. J-. K. Im, D-. Y. Lim, N. A. Windarko, J. Choi, and G-. B. Chung, "Electrical Modeling of Lithium-Polymer Battery", The Institute of Electronics and Information Engineers, Vol. 16, No. 2, 2011.
  5. L. R. Yu, "Balanced Discharging for Serial Battery Power Modules with Boost Coverters", ICSSE, 2013 International Conference on, pp. 449-453, July 2013 (DOI: 10.1109/ICSSE.2013.6614708).
  6. E. H. Mamdani, "Application of Fuzzy Algorithms for Control of a Simple Dynamic Plant," Proc. of IEEE, Vol. 121, No. 12, pp. 1585-1588, 1974 DOI: 10.1049/piee.1974.0328).
  7. S. H. Lee, S. E. Cho, K. Moon, "Fuzzy Modeling and Control of System Interconnected Photovoltaic Power Generation System", International Information Institute (Tokyo). Information, Vol. 18, No. 4, pp. 1283-1292, 2015.
  8. S. H. Lee, S. J. Lee, K. I. Moon, "Application of Fuzzy Feedback Control for Warranty Claim", New Challenges for Intelligent Information and Database Systems, pp. 279-288, 2011.
  9. http://www.aistudy.com/robot/fuzzy_niku.htm #_bookmark_108b8a8
  10. S-. D. Kim, "A Study on the Fuzzy control of Optimum Design System for Bicycle Frame", The Journal of The Institute of Internet, Broadcasting and Communication (JIIBC), Vol. 11, No. 6, pp. 49-56, 2011.
  11. YouSik Hong, Seongsoo Cho, Bhanu Shrestha, Young Roak Kim, "Development of Electronic Acupuncture using Intelligence Technology," International Journal of Advanced Smart Convergence(IJASC), Vol. 3 No. 2 pp. 10-13, 2013. https://doi.org/10.7236/IJASC2014.3.2.3
  12. Sang-Hyun Lee, Kyung-Il Moon, "Time of Arrival range Based Wireless Sensor Localization in Precision Agriculture," International Journal of Advanced Smart Convergence(IJASC), Vol. 3 No. 2 pp. 14-17, 2014. https://doi.org/10.7236/IJASC2014.3.2.4
  13. Sang-Hyun Lee, Byeong-Soo Jung, Kyung-Il Moon, "Quality of service management for intelligent system," International Journal of Advanced Smart Convergence(IJASC), Vol. 3 No. 2 pp.18-21, 2014. https://doi.org/10.7236/IJASC2014.3.2.5