NDLI: Decentralized valley-fill charging control of large-population plug-in electric vehicles

Content Provider	IEEE Xplore Digital Library
Author	Zhongjing Ma
Copyright Year	2012
Description	Author affiliation: School of Automation, Beijing Institute of Technology (BIT), China (Zhongjing Ma)
Abstract	Optimal charging control of large-population autonomous plug-in electric vehicles (PEVs) in power grid can be formulated as a class of constrained non-linear time-variant optimization problems. To overcome the computational complexity of this class of optimization problems, the author and his collaborators proposed a game-based decentralized control method such that individual agents update their best charging strategies simultaneously with respect to a common electricity price signal which is determined by the total demand in the grid. Due to the heterogeneity of individual PEVs, the game systems converge to a nearly valley-fill NE strategy with nontrivial deviation costs due to the heterogeneity property of individual PEV charging characteristics. In this paper the author proposed a novel algorithm to implement the optimal decentralized valley fill strategies for the charging problems of the PEV population which is composed of disjoint homogeneous subpopulations. The author introduces a cost which penalizes against the deviation of strategy of individual agent in a subpopulation from the average value of the subpopulation. It can be shown that in case that the update algorithm converges, the system reaches the optimal valley-fill equilibrium strategy where the introduced agent deviation cost vanishes. Simulation examples are used to illustrate the results developed in this paper.
Starting Page	821
Ending Page	826
File Size	221178
Page Count	6
File Format	PDF
ISBN	9781457720734
e-ISBN	9781457720741
DOI	10.1109/CCDC.2012.6244126
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2012-05-23
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Electricity Aggregates Valley-fill (VF) Nash equilibrium (NE) Games Cost function Nash equilibrium Electric vehicles Plug-in electric vehicles (PEVs) Decentralized charging control Oscillators
Content Type	Text
Resource Type	Article

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