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A Distributed Photovoltaics Ordering Grid-Connected Method for Analyzing Voltage Impact in Radial Distribution Networks

Cuiping Li1, Kunqi Gao1, Can Chen2, Junhui Li1,*, Xiaoxiao Wang2, Yinchi Shao2, Xingxu Zhu1

1 Key Laboratory of Modern Power System Simulation and Control & Renewable Energy Technology, Ministry of Education (Northeast Electric Power University), Jilin, 132012, China
2 State Grid Jibei Electric Power Co., Ltd., Electric Power Research Institute, Beijing, 100045, China

* Corresponding Author: Junhui Li. Email: email

Energy Engineering 2024, 121(10), 2937-2959. https://doi.org/10.32604/ee.2024.052167

Abstract

In recent years, distributed photovoltaics (DPV) has ushered in a good development situation due to the advantages of pollution-free power generation, full utilization of the ground or roof of the installation site, and balancing a large number of loads nearby. However, under the background of a large-scale DPV grid-connected to the county distribution network, an effective analysis method is needed to analyze its impact on the voltage of the distribution network in the early development stage of DPV. Therefore, a DPV orderly grid-connected method based on photovoltaics grid-connected order degree (PGOD) is proposed. This method aims to orderly analyze the change of voltage in the distribution network when large-scale DPV will be connected. Firstly, based on the voltage magnitude sensitivity (VMS) index of the photovoltaics permitted grid-connected node and the acceptance of grid-connected node (AoGCN) index of other nodes in the network, the PGOD index is constructed to determine the photovoltaics permitted grid-connected node of the current photovoltaics grid-connected state network. Secondly, a photovoltaics orderly grid-connected model with a continuous updating state is constructed to obtain an orderly DPV grid-connected order. The simulation results illustrate that the photovoltaics grid-connected order determined by this method based on PGOD can effectively analyze the voltage impact of large-scale photovoltaics grid-connected, and explore the internal factors and characteristics of the impact.

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APA Style
Li, C., Gao, K., Chen, C., Li, J., Wang, X. et al. (2024). A distributed photovoltaics ordering grid-connected method for analyzing voltage impact in radial distribution networks. Energy Engineering, 121(10), 2937-2959. https://doi.org/10.32604/ee.2024.052167
Vancouver Style
Li C, Gao K, Chen C, Li J, Wang X, Shao Y, et al. A distributed photovoltaics ordering grid-connected method for analyzing voltage impact in radial distribution networks. Energ Eng. 2024;121(10):2937-2959 https://doi.org/10.32604/ee.2024.052167
IEEE Style
C. Li et al., “A Distributed Photovoltaics Ordering Grid-Connected Method for Analyzing Voltage Impact in Radial Distribution Networks,” Energ. Eng., vol. 121, no. 10, pp. 2937-2959, 2024. https://doi.org/10.32604/ee.2024.052167



cc Copyright © 2024 The Author(s). Published by Tech Science Press.
This work is licensed under a Creative Commons Attribution 4.0 International License , which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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