Collaborative Robust Optimization Strategy of Electric Vehicles and Other Distributed Energy Considering Load Flexibility

Aggregated electric vehicles (EVs) integrated to the grid and intermittent wind and solar energy increased the complexity of the economic dispatch of the power grid. Aggregated EVs have a great potential to reduce system operating costs because of their dual attributes of load and energy storage. In...

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Main Authors: Yuxuan Wang, Bingxu Zhang, Chenyang Li, Yongzhang Huang
Format: Article
Language:English
Published: MDPI AG 2022-04-01
Series:Energies
Subjects:
Online Access:https://www.mdpi.com/1996-1073/15/8/2947
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author Yuxuan Wang
Bingxu Zhang
Chenyang Li
Yongzhang Huang
author_facet Yuxuan Wang
Bingxu Zhang
Chenyang Li
Yongzhang Huang
author_sort Yuxuan Wang
collection DOAJ
description Aggregated electric vehicles (EVs) integrated to the grid and intermittent wind and solar energy increased the complexity of the economic dispatch of the power grid. Aggregated EVs have a great potential to reduce system operating costs because of their dual attributes of load and energy storage. In this paper, plugged-in EV is refined into three categories: rated power charging, adjustable charging, and flexible charging–discharging, and then control models are established separately; the concept of temporal flexibility for EV clusters is proposed for the adjustable charging and flexible charging–discharging of EV sets; then, the schedule boundary of EV clusters is determined under the flexibility constraints. The interval is used to describe the intermittent nature of renewable energy, and the minimum operating cost of the system is taken as the goal to construct a distributed energy robust optimization model. By decoupling the model, a two-stage efficient solution is achieved. An example analysis verifies the effectiveness and superiority of the proposed strategy. The proposed strategy can minimize the total cost while meeting the demand difference of EV users.
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spelling doaj.art-f2fd64c1c7a04fb18654b7a3c2b127262023-11-30T21:04:43ZengMDPI AGEnergies1996-10732022-04-01158294710.3390/en15082947Collaborative Robust Optimization Strategy of Electric Vehicles and Other Distributed Energy Considering Load FlexibilityYuxuan Wang0Bingxu Zhang1Chenyang Li2Yongzhang Huang3School of Electrical & Electronic Engineering, North China Electric Power University, Beijing 102206, ChinaSchool of Electrical & Electronic Engineering, North China Electric Power University, Beijing 102206, ChinaSchool of Electrical & Electronic Engineering, North China Electric Power University, Beijing 102206, ChinaSchool of Electrical & Electronic Engineering, North China Electric Power University, Beijing 102206, ChinaAggregated electric vehicles (EVs) integrated to the grid and intermittent wind and solar energy increased the complexity of the economic dispatch of the power grid. Aggregated EVs have a great potential to reduce system operating costs because of their dual attributes of load and energy storage. In this paper, plugged-in EV is refined into three categories: rated power charging, adjustable charging, and flexible charging–discharging, and then control models are established separately; the concept of temporal flexibility for EV clusters is proposed for the adjustable charging and flexible charging–discharging of EV sets; then, the schedule boundary of EV clusters is determined under the flexibility constraints. The interval is used to describe the intermittent nature of renewable energy, and the minimum operating cost of the system is taken as the goal to construct a distributed energy robust optimization model. By decoupling the model, a two-stage efficient solution is achieved. An example analysis verifies the effectiveness and superiority of the proposed strategy. The proposed strategy can minimize the total cost while meeting the demand difference of EV users.https://www.mdpi.com/1996-1073/15/8/2947EV clusterschedulable capabilitytemporal flexibilitydemand differencerobust optimization
spellingShingle Yuxuan Wang
Bingxu Zhang
Chenyang Li
Yongzhang Huang
Collaborative Robust Optimization Strategy of Electric Vehicles and Other Distributed Energy Considering Load Flexibility
Energies
EV cluster
schedulable capability
temporal flexibility
demand difference
robust optimization
title Collaborative Robust Optimization Strategy of Electric Vehicles and Other Distributed Energy Considering Load Flexibility
title_full Collaborative Robust Optimization Strategy of Electric Vehicles and Other Distributed Energy Considering Load Flexibility
title_fullStr Collaborative Robust Optimization Strategy of Electric Vehicles and Other Distributed Energy Considering Load Flexibility
title_full_unstemmed Collaborative Robust Optimization Strategy of Electric Vehicles and Other Distributed Energy Considering Load Flexibility
title_short Collaborative Robust Optimization Strategy of Electric Vehicles and Other Distributed Energy Considering Load Flexibility
title_sort collaborative robust optimization strategy of electric vehicles and other distributed energy considering load flexibility
topic EV cluster
schedulable capability
temporal flexibility
demand difference
robust optimization
url https://www.mdpi.com/1996-1073/15/8/2947
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