Decentralized charging coordination of plug-in electric vehicles in distribution networks with transformer aging considered

Xu Zhou, Yunfeng Shao, Suli Zou, Zhongjing Ma

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

2 Citations (Scopus)

Abstract

Coordination algorithms are needed for large-scale plug-in electric vehicles (PEVs) charging problems characterizing battery health and distribution transformer aging. It aims at achieving cost efficient and safe operation without excessive centralization of control decisions. However, the presence of transformers causes coupling among PEVs charging behaviors which brings challenge to make decisions in decentralization. To this end, this paper presents an algorithm based on the so-called alternating direction method of multipliers (ADMM) to coordinate multi-period PEV charging problems amidst the coupling relationship among PEVs charging behaviors. The individual costs include not only nominal PEV charging costs, but also a deviation from the difference between updated auxiliary and dual variables. In a setting where the dual variable is a gradient descent of the augmented Lagrangian multiplier, we prove that the algorithm guarantees convergence to the optimal coordination. Simulation results show the optimality and convergence of the proposed method.

Original languageEnglish
Title of host publicationProceedings of the 38th Chinese Control Conference, CCC 2019
EditorsMinyue Fu, Jian Sun
PublisherIEEE Computer Society
Pages2218-2223
Number of pages6
ISBN (Electronic)9789881563972
DOIs
Publication statusPublished - Jul 2019
Event38th Chinese Control Conference, CCC 2019 - Guangzhou, China
Duration: 27 Jul 201930 Jul 2019

Publication series

NameChinese Control Conference, CCC
Volume2019-July
ISSN (Print)1934-1768
ISSN (Electronic)2161-2927

Conference

Conference38th Chinese Control Conference, CCC 2019
Country/TerritoryChina
CityGuangzhou
Period27/07/1930/07/19

Keywords

  • ADMM
  • Battery degradation
  • Decentralized method
  • Distribution transformer
  • Hot-spot temperature
  • Plug-in electric vehicles

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Zhou, X., Shao, Y., Zou, S., & Ma, Z. (2019). Decentralized charging coordination of plug-in electric vehicles in distribution networks with transformer aging considered. In M. Fu, & J. Sun (Eds.), Proceedings of the 38th Chinese Control Conference, CCC 2019 (pp. 2218-2223). Article 8866071 (Chinese Control Conference, CCC; Vol. 2019-July). IEEE Computer Society. https://doi.org/10.23919/ChiCC.2019.8866071