Study on the Limit Penetration Level Evaluation Method of Distributed Photovoltaics Based on Large Sample Generation-Load Data

Jinlin Li, Tianjun Jing, Jiangbo Wang, Kun Wang and Lei Wang
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Jinlin Li: College of Information and Electrical Engineering, China Agricultural University, Beijing 100083, China
Tianjun Jing: College of Information and Electrical Engineering, China Agricultural University, Beijing 100083, China
Jiangbo Wang: College of Information and Electrical Engineering, China Agricultural University, Beijing 100083, China
Kun Wang: Economic Research Institute of State Grid Zhejiang Electric Power Co., Ltd., Hangzhou 310008, China
Lei Wang: Economic Research Institute of State Grid Zhejiang Electric Power Co., Ltd., Hangzhou 310008, China

Energies, 2019, vol. 12, issue 18, 1-19

Abstract: The three-step rule of distributed photovoltaic (DPVs) connecting to a distribution network in the planning of practical photovoltaic projects is modeled in this paper. On this basis, a method based on large sample historical generation-load data is proposed to comprehensively evaluate the DPV limit penetration level of the low voltage–medium voltage (LV-MV) distribution network, which is the premise of DPV connection planning. Considering the fluctuations of generation-load data in time and space, the DPV limit penetration level of the LV network is evaluated based on kernel density estimation. On this basis, considering the uncertainties of DPVs connecting node schemes and connection capacity, the limit penetration level of DPVs continuously connecting to the MV network is evaluated based on the dichotomy method and stochastic simulation. Finally, the feasibility of evaluating the DPV limit penetration level by the proposed method is verified based on an example of a real distribution network, which is of great importance for the planning of a distribution network with high DPV permeability to continuously connect to DPVs.

Keywords: distributed photovoltaic (DPV); sample data; two-phase sampling; stochastic simulation; limit penetration level (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2019
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