Hybrid AC/DC Microgrid Reconstruction in Rural Low-Voltage Distribution Grids to Enhance Electric Vehicle Penetration

Hang Yu1; Xiang Lei2; Songyan Niu2; Linni Jian2

10.1109/CIEEC58067.2023.10166848

2023

979-8-3503-4668-8

2023 IEEE 6th International Electrical and Energy Conference (CIEEC)

3744-3749

12-14 May 2023

Hefei, China

In this paper, an easy-to-implement hybrid microgrid reconstruction scheme is proposed to enhance EV penetration in traditional rural low-voltage distribution grids. Unlike the traditional grid update solution, the introduced scheme reuses the existing transformers and power lines, and based on the energy routing unit (ERU), the AC distribution grid is converted to a hybrid microgrid. A prominent power transfer capacity increase and power loss reduction via hybrid microgrid reconstruction are quantified. Moreover, considering the efficiency characteristics of transformers and ERU, a power coordination strategy is designed to achieve optimal power dispatching between two feeders. The case study demonstrates that the maximum EV penetration in the reconstructed architecture could reach 352%, which is significantly superior to that in the traditional AC networks. Moreover, the overall efficiency and load ratio increase is realized under the reconstructed architecture.

electric vehicles (EVs) hybrid AC/DC microgrid reconstruction power coordination strategy

第一

EI

20233314544838

Electric load dispatching ; Energy transfer ; Network architecture ; Voltage distribution measurement

Electric Power Transmission:706.1.1 ; Electric Power Distribution:706.1.2 ; Electric Variables Measurements:942.2

IEEE

1.Southern University of Science and Technology, Jiaxing Research Institute, Jiaxing, China
2.Department of Electrical and Electronic Engineering, Southern University of Science and Technology, Shenzhen, China

Hang Yu,Xiang Lei,Songyan Niu,et al. Hybrid AC/DC Microgrid Reconstruction in Rural Low-Voltage Distribution Grids to Enhance Electric Vehicle Penetration[C],2023:3744-3749.