|Table of Contents|

Highway distribution network for post-disaster low carbon recovery considering fault variations(PDF)

长安大学学报（自然科学版）[ISSN:1006-6977/CN:61-1281/TN]

Issue:
2024年5期
Page:
114-125
Research Field:
交通能源融合技术专题
Publishing date:

Info

Title:
Highway distribution network for post-disaster low carbon recovery considering fault variations
Author(s):
KE Ji1;  WANG Hai-yang1;  LU Jie2;  JIANG Wei3;  LIU Zhuang-zhuang3;  WANG Biao1
(1. School of Energy and Electrical Engineering, Chang'an University, Xi'an 710018, Shaanxi, China; 2. School of Electronic and Control Engineering, Chang'an University, Xi'an 710018, Shaanxi, China; 3. School of Highway, Chang'an University, Xi'an 710064, Shaanxi, China)
Keywords:
traffic engineering;  highway distribution network;  post-disaster low carbon recovery;  coordinated energy dispatching vehicle;  line fault
PACS:
U491
DOI:
10.19721/j.cnki.1671-8879.2024.05.010
Abstract:
To address the issue of power supply assurance following widespread outages in distribution networks caused by snow disasters on expressways, and given the predictability of the disaster duration, energy dispatch vehicles in coordination with distributed energy resources was used to propose a post-disaster recovery strategy for the distribution network that considered the repair and variability of power line faults and had carbon reduction effects. In terms of line faults, the overload line breakage caused by ice cover on lines was analyzed, and models for line fault repair and variable scenarios were established. In terms of post-disaster recovery, considering the impact of icy road surfaces on the mobility of energy dispatch vehicles, a multi-source coordinated post-disaster recovery strategy was proposed, aiming for minimum load reduction power. This strategy integrated load reduction optimization, distributed power output, and operation strategies for energy dispatch vehicles, considering emergency power and diesel generators. It sought to determine the optimal load reduction, distributed power generation output, and operation strategies for energy dispatch vehicles. A comparative analysis was then conducted on the modified IEEE 33-bus distribution system suitable for expressways, examining the proposed strategy, scenarios without energy dispatch vehicles, and scenarios where the objective function did not include rewards and penalties for the output of clean energy and diesel generators. The results show that the proposed strategy can effectively restore the power distribution system after a snow disaster on expressways and reduce reliance on diesel generators. With the coordination of energy dispatch vehicles and distributed resources, the average supply rates for primary, secondary, and tertiary loads are 94.7%, 93.2% and 40%, respectively. Without energy dispatch vehicles, the average supply rates for all load levels are significantly reduced, with primary, secondary, and tertiary loads having average supply rates of 84%, 76.6% and 15%, respectively. Furthermore, compared with the proposed strategy, diesel generators power output 15.45% more power when rewards and penalties for the output of energy dispatch vehicles, emergency power supplies, and diesel generators are not considered.7 tabs, 19 figs, 26 refs.

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Last Update: 2024-10-20