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Evaluation Algorithm for Hosting Capacity of PV System using LDC Method of SVR in Distribution Systems

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Abstract

This paper deals with an evaluation algorithm of the hosting capacity for PV system based on the LDC (line drop compensation) method of SVR (step voltage regulator) in order to improve the hosting capacity when large-scaled PV systems are installed in distribution system. Specifically, optimal LDC setting values are obtained by calculation algorithm of LDC setting values for SVR using the Least-squares method that minimizes the error for the entire time interval based on the distribution characteristics of upper and lower limits for the sending voltage of SVR considering the reverse power flow by PV systems. And also, this paper performs a modeling of complex distribution system which is composed of large-scaled PV system and SVR with LDC method by using PSCAD/EMTDC S/W. From the simulation results, it is confirmed that the proposed algorithm and modeling is a useful and practical tool to improve the hosting capacity of PV system because customer voltages are maintained within the allowable voltage limits.

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Acknowledgements

This work was partly supported by the Korea Institute of Energy Technology Evaluation and Planning(KETEP) grant funded by the Korea government(MOTIE) (20213030160080, Development of Demonstration Technology of Renewable Energy Based Hybrid Community Micro-grid for 50% Replacement Rate of Energy Consumer). And this research was supported by the National Research Council of Science & Technology(NST) grant by the Korea government (MSIT) (No. CPS22131-100).

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  1. Department of Electrical, Electronics and Communication Engineering, Korea University of Technology and Education, Cheon-An, Korea

    Ji-Myung Kim, Byeong-Gill Han, Se-Yeon Lee, Kyung-Hwa Kim, Seong-Moon Choi & Dae-Seok Rho

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  1. Ji-Myung Kim
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  2. Byeong-Gill Han
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  3. Se-Yeon Lee
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  4. Kyung-Hwa Kim
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  5. Seong-Moon Choi
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  6. Dae-Seok Rho
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Correspondence to Dae-Seok Rho.

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Kim, JM., Han, BG., Lee, SY. et al. Evaluation Algorithm for Hosting Capacity of PV System using LDC Method of SVR in Distribution Systems. J. Electr. Eng. Technol. 18, 2475–2482 (2023). https://doi.org/10.1007/s42835-023-01493-0

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  • DOI: https://doi.org/10.1007/s42835-023-01493-0

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