Storage capacity allocation strategy for distribution network with distributed photovoltaic generators

• 作者: Bin LI Xiaoqing BAI Xingchen LI Zhineng LI
• 来源期刊: 现代电力系统与清洁能源学报(英文)
• 学科: 工学
• 关键词: DISCRETE FOURIER TRANSFORM DISTRIBUTED PHOTOVOLTAIC Energy storage system Medium/low voltage distribution network
• 年，卷（期）: 2018,（6）
• 页码范围: 1234-1243
• 页数: 10页
• 分类号: TM615

摘要

Distributed photovoltaic generators(DPGs) have been integrated into the medium/low voltage distribution network widely. Due to the randomness and fluctuation of DPG, however, the distribution and direction of power flow changed frequently some days. Therefore, more attention is needed to ensure the safe operation of the distribution network. The installation of energy storage systems(ESSs) can help the network withstand thefluctuations caused by DPG. Based on the discrete Fourier transform method, this paper presents an ESS capacity allocation strategy for the medium/low voltage distribution network with DPG. The reliability scenario models are created via Latin hypercube sampling with Cholesky decomposition and scenario reduction. Numerical results show that the proposed strategy can reduce the power flow fluctuation with less ESS capacity, and increase the penetration capacity of DPG in the distribution network while maintaining the quality of the power supply.