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Content Provider | IET Digital Library |
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Author | Zou, Suli Ma, Zhongjing Yang, Nan |
Abstract | Here, the authors study the optimal coordination of electric vehicles (EVs) in a multi-microgrid (MMG) system with respect to a given time-of-use (TOU) price trajectory over a multi-time period. The authors firstly formulate a class of EV charging/discharging coordination problems for each individual microgrid (MG) to minimise the electricity cost of this MG, while the implemented strategy may result in high variations of the total demand and even build new peaky demands. To mitigate these negative effects, the authors build an aggregate optimisation problem with quadratic cost function under certain bounds on the electricity costs of each MG. The authors further propose a decentralised method for the underlying optimisation problem and verify the convergence of the system to the optimal strategy with a logarithmic convergence rate. Furthermore, the authors consider the power exchange capacity between the MMG system and the main grid, and present a decentralised algorithm to obtain an optimal strategy that minimises the system cost under this capacity constraint. Also, the convergence, the optimality, and the convergence rate of the proposed algorithm are shown. |
Starting Page | 2899 |
Ending Page | 2906 |
Page Count | 8 |
ISSN | 17518687 |
Volume Number | 13 |
e-ISSN | 17518695 |
Issue Number | Issue 13, Jul (2019) |
Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/iet-gtd/13/13 |
Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/10.1049/iet-gtd.2018.6767 |
Journal | IET Generation, Transmission & Distribution |
Publisher Date | 2019-05-20 |
Access Restriction | Open |
Rights Holder | © The Institution of Engineering and Technology |
Subject Keyword | Aggregate Optimisation Problem Coordination Problem Decentralised Algorithm Decentralised Hierarchical Coordination Decentralised Method Distributed Power Generation Electric Vehicle Electricity Cost EVs Individual Microgrid Logarithmic Convergence Rate Minimisation MMG System Multimicrogrid System Multitime Period Optimal Coordination Optimality Optimisation Problem Optimisation Technique Peaky Demands Pricing Quadratic Cost Function System Cost Minimization Time-of-use Price Trajectory Total Demand Transportation |
Content Type | Text |
Resource Type | Article |
Subject | Control and Systems Engineering Energy Engineering and Power Technology Electrical and Electronic Engineering |
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