The Journal of the Korea institute of electronic communication sciences (한국전자통신학회논문지)

Korea Institute of Electronic Communication Science (한국전자통신학회)
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Frequency Stability Enhancement of Power System using BESS

BESS를 활용한 전력계통 주파수 안정도 향상

  • 유성수 (국립목포대학교 전기공학과) ;
  • 곽은섭 (국립목포대학교 전기공학과) ;
  • 문채주 (국립목포대학교 스마트그리드연구소)
  • Received : 2022.06.14
  • Accepted : 2022.08.17
  • Published : 2022.08.31
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Abstract

Korea has the characteristics of traditional power system such as large-scale power generation and large-scale power transmission systems, including 20 GW large-scale power generation complexes in several regions with unit generator capacity exceeding 1.4 GW, 2-3 ultra-high-voltage transmission lines that transport power from large-scale power generation complexes, and 6 ultra-high-voltage transmission lines that transport power from non-metropolitan areas to the metropolitan area. Due to the characteristics of the power system, the penetration level for renewable energy is low, but due to frequency stability issue, some generators are reducing the output of generators. In the future, the issue of maintaining the stability of the power system is expected to emerge as the most important issue in accordance with the policy of expanding renewable energy. When non-inertial inverter-based renewable energy, such as solar and wind power, surges rapidly, the means to improve the power system stability in an independent system is to install a natural inertial resource synchronous condenser (SC) and a virtual inertial resource BESS in the system. In this study, we analyzed the effect of renewable energy on power system stability and the BESS effect to maintain the minimum frequency through a power system simulation. It was confirmed that the BESS effect according to the power generation constraint capacity reached a maximum of 122.81 %.

한국은 단위기 발전기 용량 1.4 GW, 20 GW를 초과하는 몇 개 지역의 대단위 발전단지, 대단위 발전단지에서 발전력을 인출하는 2~3개의 초고압 송전선로, 비수권에서 수도권으로 발전력을 수송하는 6개의 초고압 송전선로 구성 등 대용량 발전, 대규모 송전시스템 등 전통적인 전력계통 시스템의 특징을 가지고 있다. 이런 전력계통 특성으로 신재생에너지 진입 단계는 낮으나 주파수 안정도 문제 등으로 일부 발전기 출력 감발을 시행하고 있으며 향후 신재생에너지 확대 정책으로 전력계통 안정도 유지 문제가 가장 중요한 현안으로 떠오를 전망이다. 태양광, 풍력발전 같은 비관성 인버터 기반 신재생에너지 급증시 독립계통에서 전력계통 안정도를 향상시키는 수단은 Natural 관성 자원인 동기조상기와 가상 관성 자원인 BESS를 계통에 설치하는 것이다. 본 연구에서는 신재생에너지가 계통안정도에 미치는 영향을 분석하고 최저주파수를 유지하기 위한 BESS 효과를 계통 모의를 통하여 분석하였다. 발전제약 용량에 따른 BESS 효과는 최대 122.81%에 도달하는 것을 확인하였다.

Keywords

References

  1. H. Myung, H. Kim, N. Kang, Y. Kim, and S. Kim, "Analysis of the Load Contribution of Wind Power and Photovoltaic Power to Power System in Jeju," J. of the Korean Energy Society, vol. 38, no. 1, 2018, pp. 13-24. https://doi.org/10.7836/kses.2018.38.1.013
  2. H. Myung and S. Kim, "The Study on the Method of Distribution of Output according to Power Limit of Renewable Energy," J. of the Institute of Korean Electrical and Electronics Engineers, vol. 23, no. 1, 2019, pp. 173-180.
  3. E. Kwak and C. Moon,"Analysis of Power System Stability by Deployment of Renewable Energy Resources," J. of the Korea Institute of Electronic Communication Sciences, vol. 16, no. 4, 2021, pp. 633-642. https://doi.org/10.13067/JKIECS.2021.16.4.633
  4. S. You, Y. Liu, X. Zhang, Y. Su, L. Wu, Y. Liu, and S. Hadley, "Impact of high PV penetration on US Eastern Interconnection Frequency Response," 2017 IEEE Power & Energy Society General Meeting, Chicago, USA, 2017, pp. 1-5.
  5. E. Kwak, J. Min, H. Jung, and C. Moon, "A Study on HVDC and BESS Application for High Penetration of Renewable Energy Sources," J. of the Korea Institute of Electronic Communication Sciences, vol. 16, no. 6, 2021, pp. 1339-1348.
  6. G. Chown, J. Wright, R. Heerden, and M. Coker "System Inertia and Rate of Change of Frequency (RoCoF) with Increasing Non-synchronous Renewable Energy Penetration," 8th CIGRE Southern Africa Regional Conf., Cape Town, South Africa, 2017, pp. 1-20.
  7. H. Chamorro, A. Canon, D. Ganger, M. Persson, F. Longatt, V. Sood, and W. Martizez, "Nadir Frequency Estimation in Low-inertia Power Systems," 2020 IEEE 29th Int. Symp. on Industrial Electronics(ISIE), Delft, Netherlands, 2020, pp. 1-4.
  8. H. Son, D. Kim, and C. Moon, "Design of Submarine Cable for Capacity Extension of Power Line," J. of the Korea Institute of Electronic Communication Sciences, vol. 17, no. 1, 2022, pp. 77-84,.
  9. P. Kundur, J. Paserba, V. Ajjarapu, G. Andersson, A. Bose, C. Canizares, N. Hatziargyriou, D. Hill, A. Stankovic, C. Taylor, and T. Cutsem, "Definition and Classification of Power System Stability IEEE/CIGRE Joint Task Force on Stability Terms and Definitions," IEEE Trans. on Power Systems, vol. 19, no. 2, 2004, pp. 1387-1401. https://doi.org/10.1109/TPWRS.2004.825981
  10. R. Eriksson, N. Modig, and K. Elkington. "Synthetic Inertia Versus Fast Frequency Response: a Definition," IET Renewable Power Generation, vol. 12, issue 5, 2018, pp. 507-514. https://doi.org/10.1049/iet-rpg.2017.0370
  11. L. Li, H. Li, M. Teng, H. Feng, and A. Chju "Renewable Energy System on Frequency Stability Control Strategy Using Virtual Synchronous Generator," Symmetry 2020, vol. 12, 2020, pp. 1-22.
  12. M. Dreidy, H. Mokhlis, and S. Mekhilef "Inertia Response and Frequency Control Techniques for Renewable Energy Sources: A Review," Renewable and Sustainable Eenrgy reviews, vol. 69, 2017, pp. 144-155. https://doi.org/10.1016/j.rser.2016.11.170
  13. A. Ulbig, T. Borsche, and G. Andersson. "Impact of Low Rotational Inertia on Power System Stability and Operation," Int. Federation of Automatic Control Proc., vol. 47, issue 3, 2014, pp. 7290-7297.
  14. I. Dudurych, "The Impact of Renewables on Operational Security: Operating Power Systems That Have Extremely High Penetrations of Nonsynchronous Renewable Sources," IEEE Power and Energy Mag. vol. 19, issue 2, 2021, pp. 37-45. https://doi.org/10.1109/MPE.2020.3043614
  15. A. Sajadi, R. Kolacinski, K. Clark, and K. Loparo, "Transient Stability Analysis for Offshore Wind Power Plant Integration Planning Studies-Part I: Short-term Faults," IEEE Trans. Industry Applications, vol. 55, issue 1, 2018, pp. 182-192.
  16. E. Vittal, M. O'Malley, and A. Keane, "Rotor Angle Stability with High Penetrations of Wind Generation," IEEE Trans. Power Systems, vol. 27, no. 1, 2012, pp. 353-362. https://doi.org/10.1109/TPWRS.2011.2161097
  17. K. Kpoto, A. Sharma, and A. Sharma. "Effect of energy storage system (ESS) in low inertia power system with high renewable energy sources," 2019 Fifth Int. Conf. on Electrical Energy Systems(ICEES), Chennai, India, 2019, pp. 1-7.