Load Transfer Path Search and Its Evaluation between Networks in Consideration of the Mobile Energy Storage of Electric Vehicles

World Electric Vehicle Journal

Zexin Yang¹  Dongyu Mao¹  Zhong Chen¹  Xueliang Huang¹  Yang Lv²  Jiang Tian² 

[1] School of Electrical Engineering, Southeast University, Nanjing 210096, China;State Grid Jiangsu Electric Power Co., Ltd., Suzhou Power Supply Branch, Suzhou 215004, China;

关键词: load transfer;    V2G;    parking generation rate;    breadth-first search;    edge matching;    optimal weighting method;   

DOI  :  10.3390/wevj12040210

来源: DOAJ

【 摘 要 】

Load transfer is an important way of restoring a power supply after equipment failure or maintenance. However, current methods ignore cooperation between networks and users, and they also fail to take into account the vehicle-to-grid (V2G) potential of electric vehicles (EVs). In this paper, a load transfer scheme between transmission and distribution networks is proposed, considering the mobile energy storage capacities of electric vehicles. First, the mobility characteristic and the available discharge capacity of EVs are analyzed on the basis of the parking generation rate. Then, the breadth-first algorithm is used to search the load transfer paths within and between stations, and an edge matching method is proposed to realize the conversion between networks with different voltage levels. Lastly, the optimal combination weighting method was adopted to combine subjective and objective index weights and to evaluate power supply paths. The effectiveness of the proposed scheme is validated in a case composed of an IEEE 30-node network and an IEEE 57-node network, with four typical scenarios.

【 授权许可】

Unknown