The Transactions of The Korean Institute of Electrical Engineers (전기학회논문지)

The Korean Institute of Electrical Engineers (대한전기학회)
권호 표지
DOI QR코드

DOI QR Code

Analysis of Electricity Cost Saving Effect by the Optimal load shifting Operation with 1MWh Redox Flow Battery

1MWh급 레독스흐름전지의 부하이전용 최적운전에 따른 전기요금 절감효과 분석

  • Received : 2016.01.19
  • Accepted : 2016.05.13
  • Published : 2016.07.01
Download PDF
⟨ Previous Next ⟩

Abstract

In recent years, the energy storage systems such as LiB, NaS, RFB(Redox-Flow Battery), Super- capacitor, pumped hydro storage, flywheel, CAES(Compressed Air Energy Storage) and so on have received great attention as practical solutions for the power supply problems. They can be used for various purpose of peak shaving, load leveling and frequency regulation, according to the characteristics of each ESS(energy storage system). This paper will focus at 1 MWh RFB system, which is being developed through the original technology project of energy material. The output of ESS is mainly characterized by C-rate, which means that the total rated capacity of battery will be delivered in 1 hour. And it is a very important factor in the ESS operation scheduling. There can be several options according to the operation intervals 15, 30 and 60minutes. The operation scheduling is based on the optimization to minimize the daily electricity cost. This paper analyzes the cost-saving effects by the each operating time-interval in case that the RFB ESS is optimally scheduled for peak shaving and load leveling.

Keywords

References

  1. Ministry of Trade, Industry and Trade, "The 7th Basic Plan for Long-term Electricity Supply and Demand", July 2015.
  2. Sung-In Lee, Plans for Energy Storage System Market Creation, Korea Energy Economics Institute, May 2015.
  3. Korea Smart Grid Association, Smart Grid ESS Technology Trends Report, Korea Smart Grid Association, 2012.
  4. Chang Soo Jin, "Battery for Large Scale Energy Storage", Korean Industrial Chemistry News, Vol. 13, No. 2, pp. 23-29, 2010.
  5. Byunghyun Hwang, Ketack Kim, "Redox Pairs in Redox Flow Batteries", Journal of the Korean Electrochemical Society, Vol. 16, No. 3, pp. 99-110, 2013. https://doi.org/10.5229/JKES.2013.16.3.99
  6. Kyeong-Hee Cho, Seul-Ki Kim, Eung-Sang Kim, "Optimal Capacity Determination Method of Battery Energy Storage System for Demand Management of Electricity Customer", The Transactions of the Korean Institute of Electrical Engineers, Vol. 62, No. 1, pp. 21-28, 2013. https://doi.org/10.5370/KIEE.2012.62.1.021
  7. Rakkyung Ko, Seongbae Kong, Sung-Kwan Joo, "Mixed Integer Programming(MIP)-based Energy Storage System Scheduling Method for Reducing the Electricity Purchasing Cost in an Urban Railroad System", The Transactions of the Korean Institute of Electrical Engineers, Vol. 64, No. 7, pp. 1125-1129, 2015. https://doi.org/10.5370/KIEE.2015.64.7.1125
  8. Young-Sang Yoon, Jae-Hyun Choi, Yong-Lak Choi, Yongtae Shin, Jong-bae Kim, "A Study on the Economic Analysis Method of Energy Storage System", Journal of the Korea Institute of Information and Communication Engineering, Vol. 19, No. 3, pp. 596-606, March 2015. https://doi.org/10.6109/jkiice.2015.19.3.596
  9. Jong-Bae Park, Yong-Gi Park, Jae-Hyung Roh, Byung-Hoon Chang, Yong-Beum Toon, "An Economic Assessment of Large-scale Battery Energy Storage Systems in the Energy-Shift Application to Korea Power System", The Transactions of the Korean Institute of Electrical Engineers, Vol. 64, No. 3, pp. 384-392, 2015. https://doi.org/10.5370/KIEE.2015.64.3.384
  10. Younghoon Kim, Sonhun Yoon, "Electrochemical Characterization Methods for Lithium Secondary Batteries", Polymer Science and Technology, Vol. 23, No. 3, pp. 307-312, June 2012.
  11. Korea Electric Power Corporation, Electric Rates Table, http://cyber.kepco.co.kr
  12. Chakrabarti M.H., Hailmolana S.A., Mjalli F.S., Saleem M. Mustafa, "Redox Flow Battery for Energy Storage", Arabian Journal for Science and Engineering, Vol. 38, Issue 4, pp. 723-739, 2013. https://doi.org/10.1007/s13369-012-0356-5
  13. Jae-Haeng Heo, Seungkwon Shin, Jong-young Park, Hyeongig Kim, "Study on the Optimal Operation of ESS Considering Urban Railway Load Characteristic", The Transactions of the Korean Institute of Electrical Engineers, Vol. 64, No. 10, pp. 1508-1516, 2015. https://doi.org/10.5370/KIEE.2015.64.10.1508
  14. Yourim Yoon, Yong-Hyuk Kim, "Charge Scheduling of an Energy Storage System under Time-of-use Pricing and a Demand Charge", Th Scientific World Journal, Vol. 2014, pp. 1-9, August 2014.
  15. Puiki Leung, Xiaohong Li, Carlos Ponce de Leon, Leonard Berlouis, C. T. John Low, Frank C. Walsh, "Progress in redox flow batteries, remaining challenges and their applications in energy storage", Royal Society of Chemistry advances, Vol. 2, pp. 10125-10156, 2012.