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A Study on ANN/RNN-based Photovoltaic Generation Forecasting

ANN/RNN 기반 태양광 발전량 예측에 관한 연구

  • Su Wung Baek (Department of Electrical Engineering, Mokpo National University/Enterprise Support Division, Energy Valley Enterprise Development Institute) ;
  • Sung Gi Kwon (Department of Electrical Engineering, Mokpo National University) ;
  • Chang Heon Kim (Artificial Intelligence & Energy Research Center, Korea Photonics Technology Institute) ;
  • Gye Choon Park (Department of Electrical Engineering, Mokpo National University)
  • 백수웅 (전기공학과, 목포대학교 / 기업지원실, 에너지밸리기업개발원) ;
  • 권성기 (전기공학과, 목포대학교) ;
  • 김창헌 (AI에너지연구센터, 한국광기술원) ;
  • 박계춘 (전기공학과, 목포대학교)
  • Received : 2024.08.02
  • Accepted : 2024.09.02
  • Published : 2024.09.30

Abstract

This study proposed a forecasting model that combines ANNs and RNNs to address the intermittency and fluidity of solar power generation. Four prediction models were trained separately based on sky conditions provided by the Korea Meteorological Administration, and insolation was estimated using the ASHRAE Clear-Sky model. The proposed model showed an error rate of 6.5-7.7% based on NMAE, which meets the requirements of power generation prediction. As a result, this study can improve the accuracy of solar power generation forecasting, which can contribute to the stability of power operation and the profitability of power operators.

Keywords

Acknowledgement

본 결과물은 2024년도 교육부의 재원으로 한국연구재단의 지원을 받아 수행된 지자체-대학협력 기반 지역혁신 사업의 결과입니다(2021RIS-002). 본 연구는 산업통상자원부(MOTIE)와 한국에너지기술평가원(KETEP)의 지원을 받아 수행한 연구 과제입니다(RS-2024-00358809).

References

  1. Korea Energy Agency (KEA), 2022 New and Renewable energy supply statistics final results (2023. 12). 
  2. P. R. Brown, F. M. O'Sulivan, Shaping photovoltaic array output to align with changing wholesale electricity price profiles. Appl. Energy. 256, 113734 (2019). 
  3. M. S. Hossain, H. Mahmood, Short-term photovoltaic power forecasting using an LSTM neural network and synthetic weather forecast. IEEE. ISSN 2169-3536, DOI 10.1109/ACCESS.2020.3024901 (2020). 
  4. KPX, Electricity market operation rules. 
  5. G. M. Pitra, K. S. Sastry Musti, Dcuk curve with renewable energies and storage technologies, 13th International Conference on Computational Intelligence and Communication Networks, Lima, Peru, doi:10.1109/CICN51697.2021.13 (2021). 
  6. K. S. Kwon, Review of the special act on the promotion of distributed energy (Proposal), KLGLA, Vol. 77, No. 23-1 (2023). 
  7. W. S. Kim, H. H. Jo, Impact of photovoltaic generation expansion on Korea's electricity power system and the solution: Focusing on power system stability and supply and demand stability. KJECON. 27, 23-65 (2020). 
  8. H. Huang, J. Xu, Z. Peng, S. Yoo, D, Yu, D. Huang, H. Qin, Cloud motion estimation for short term solar irradiation prediction, SmartGrid Communications IEEE International Conference, pp. 696-701 (2013). 
  9. J. J. Song, Y. S. Jeong, S. H. Lee, Analysis of prediction model for solar power generation. J. of Digital Convergence. 12, 243-248 (2014). 
  10. K. D. Kim, The development of the short term predict model for solar power generation. KSES. Vol. 33, No. 6 (2013). 
  11. H. J. Na, K. S. Kim, Study on generation volume of floating solar power using historical insolation data. JKSCE. 43, 249-258 (2023). 
  12. A. Mohammad, F. Mahjabeen, Revolutionizing solar energy: The impact of artificial intelligence on photovoltaic systems. J. Multidiscip. Res. 2, 117-127 (2023). 
  13. C. L. Sergio, M. C. Ricardo, C. David, A. George, Deep and machine learning models to forecast photovoltaic power generation. Energies. 16, 4097 (2023). 
  14. J. I. Lee, W. K. Park, I. W. Lee, S. H. Kim, Comparison of solar power prediction model based on statistical and artificial intelligence model and analysis of revenue for forecasting policy. KIEEME. 26, 335-363 (2022). 
  15. F. Antonanzas-Torres, R. Urraca, J. Polo, O. Perpinan-Lamigueiro, R. Escobar , Clear sky solar irradiance models: A review of seventy models. Renewable Sustainable Energy Rev. 107, 374-387 (2019). 
  16. J. H. Kim, M. H. Kim, O. H. Kwon, Y. J. Seok, J. W. Jeong, Generation of monthly averaged horizontal radiation based on a regional clearness estimatimg model. KSES. 30 (2010). 
  17. Y. T. Lee, D. H. Kim, W. S. Sin, C. K. Kim, H. G. Kim, S. W. Han, A comparison of machine learning models in photovoltaic power generation forecasting. KIIE. 47, 444-458 (2021).