Journal of Advanced Information Technology and Convergence (한국정보기술학회 영문논문지)

Korean Institute of Information Technology (한국정보기술학회)
권호 표지
DOI QR코드

DOI QR Code

Improvement of Variable Renewable Energy Penetration of Stand-Alone Microgrid Hosting Capacity by Using Energy-Storage-System Based on Power Sensitivity

  • CHOI, DongHee (Electrical & Control Engineering, Division of Converged Electronic Engineering, Cheongju University)
  • Received : 2020.12.14
  • Accepted : 2020.12.30
  • Published : 2020.12.31
⟨ Previous Next ⟩

Abstract

Recently, the demand for high penetration of variable renewable energy (VRE) penetration in a power system is increased. In consequence, distribution systems including microgrids confront the increased installation of VRE-based distributed generation. Despite of the high demand of VRE-based distributed generation in a distribution system, the installation of photovoltaic (PV) system in a distribution system has been restricted by various problems. In other words, the hosting capacity for high VRE penetration in a distribution system is limited. This paper analyzes the improvements of hosting capacity VRE penetration of stand-alone microgrid (SAMG) with energy storage system (ESS) by considering virtual-slack (VS) control based on power sensitivity. With the pre-defined power sensitivity, the ESS operates as virtual slack in the SAMG by controlling its bus voltage and phase angle indirectly. Therefore, the ESS enables the increase of VRE penetration in the SAMG. The proposed VS control is realized by analyzing the ESS as a virtual slack in power flow analysis based on power sensitivity. Then its validity is demonstrated with the case study on the SAMG in South Korea with practical data.

Keywords

Acknowledgement

This work was supported by the research grant of Cheongju University (2019.03.01.~2021.02.28.)

References

  1. C. Schwaegerl, M. H. J. Bollen, K. Karoui and A. Yagmur, "Voltage control in distribution systems as a limitation of the hosting capacity for distributed energy resources," CIRED 2005 - 18th International Conference and Exhibition on Electricity Distribution, Turin, Italy, 2005, pp. 1-5.
  2. Hee-Jin Lee, "Operating Method of Stand-alone DC Micro-grid System," Proceedings of KIIT Conference 2016, Busan, South Korea, 2016, pp. 184 - 185.
  3. M. Ahmed, L. Meegahapola, A. Vahidnia and M. Datta, "Stability and Control Aspects of Microgrid Architectures-A Comprehensive Review," IEEE Access, vol. 8, pp. 144730-144766, 2020. https://doi.org/10.1109/access.2020.3014977
  4. Y. Han, P. Shen, X. Zhao and J. M. Guerrero, "Control Strategies for Islanded Microgrid Using Enhanced Hierarchical Control Structure With Multiple Current-Loop Damping Schemes," IEEE Transactions on Smart Grid, vol. 8, no. 3, pp. 1139-1153, May 2017. https://doi.org/10.1109/TSG.2015.2477698
  5. D. E. Olivares, J. D. Lara, C. A. Canizares and M. Kazerani, "Stochastic-Predictive Energy Management System for Isolated Microgrids," IEEE Transactions on Smart Grid, vol. 6, no. 6, pp. 2681-2693, Nov. 2015. https://doi.org/10.1109/TSG.2015.2469631
  6. X. Yang, Y. Du, J. Su, L. Chang, Y. Shi and J. Lai, "An Optimal Secondary Voltage Control Strategy for an Islanded Multibus Microgrid," IEEE Journal of Emerging and Selected Topics in Power Electronics, vol. 4, no. 4, pp. 1236-1246, Dec. 2016. https://doi.org/10.1109/JESTPE.2016.2602367
  7. Y. Karimi, H. Oraee and J. M. Guerrero, "Decentralized Method for Load Sharing and Power Management in a Hybrid Single/Three-Phase-Islanded Microgrid Consisting of Hybrid Source PV/Battery Units," IEEE Transactions on Power Electronics, vol. 32, no. 8, pp. 6135-6144, Aug. 2017. https://doi.org/10.1109/TPEL.2016.2620258
  8. M. M. Hashempour, M. Savaghebi, J. C. Vasquez and J. M. Guerrero, "A Control Architecture to Coordinate Distributed Generators and Active Power Filters Coexisting in a Microgrid," IEEE Transactions on Smart Grid, vol. 7, no. 5, pp. 2325-2336, Sept. 2016. https://doi.org/10.1109/TSG.2015.2488980
  9. L. Meng et al., "Flexible System Integration and Advanced Hierarchical Control Architectures in the Microgrid Research Laboratory of Aalborg University," IEEE Transactions on Industry Applications, vol. 52, no. 2, pp. 1736-1749, March-April 2016. https://doi.org/10.1109/TIA.2015.2504472
  10. D. E. Olivares, C. A. Canizares and M. Kazerani, "A Centralized Energy Management System for Isolated Microgrids," IEEE Transactions on Smart Grid, vol. 5, no. 4, pp. 1864-1875, July 2014. https://doi.org/10.1109/TSG.2013.2294187
  11. D. Choi, J. Park and S. H. Lee, "Virtual Multi-Slack Droop Control of Stand-Alone Microgrid With High Renewable Penetration Based on Power Sensitivity Analysis," IEEE Transactions on Power Systems, vol. 33, no. 3, pp. 3408-3417, May 2018, doi: 10.1109/TPWRS.2018.2810443.