Coordinated electric vehicle charging to reduce losses without network impedances
This study proposes a method of coordinating electric vehicle charging to reduce losses in a distribution system, using only knowledge of the phase that each charger is connected to. Reducing network losses cuts costs and can be achieved through demand response mechanisms. However, directly minimisi...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Wiley
2020-05-01
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| Series: | IET Smart Grid |
| Subjects: | |
| Online Access: | https://digital-library.theiet.org/content/journals/10.1049/iet-stg.2019.0216 |
| _version_ | 1818595459919249408 |
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| author | Constance Crozier Matthew Deakin Thomas Morstyn Malcolm McCulloch |
| author_facet | Constance Crozier Matthew Deakin Thomas Morstyn Malcolm McCulloch |
| author_sort | Constance Crozier |
| collection | DOAJ |
| description | This study proposes a method of coordinating electric vehicle charging to reduce losses in a distribution system, using only knowledge of the phase that each charger is connected to. Reducing network losses cuts costs and can be achieved through demand response mechanisms. However, directly minimising losses requires accurate values of the line impedances, which can be difficult to obtain. Flattening load over time and balancing load across phases have both been proposed as alternate solutions which indirectly reduce losses. Here, the practical differences between load flattening and explicitly minimising losses are quantified using simulations of residential charging in European style, three-phase distribution networks. Then, a new smart charging strategy, which incorporates phase balancing as a secondary objective to load flattening, is proposed. This requires only the knowledge of the phase that each load is on and achieves 30–70% of the potential reduction in losses. |
| first_indexed | 2024-12-16T11:16:22Z |
| format | Article |
| id | doaj.art-ba11b505daac4bae96265375bb921cc0 |
| institution | Directory Open Access Journal |
| issn | 2515-2947 |
| language | English |
| last_indexed | 2024-12-16T11:16:22Z |
| publishDate | 2020-05-01 |
| publisher | Wiley |
| record_format | Article |
| series | IET Smart Grid |
| spelling | doaj.art-ba11b505daac4bae96265375bb921cc02022-12-21T22:33:35ZengWileyIET Smart Grid2515-29472020-05-0110.1049/iet-stg.2019.0216IET-STG.2019.0216Coordinated electric vehicle charging to reduce losses without network impedancesConstance Crozier0Matthew Deakin1Thomas Morstyn2Malcolm McCulloch3Department of Engineering Science, University of OxfordSchool of Engineering, Newcastle UniversityDepartment of Engineering Science, University of OxfordDepartment of Engineering Science, University of OxfordThis study proposes a method of coordinating electric vehicle charging to reduce losses in a distribution system, using only knowledge of the phase that each charger is connected to. Reducing network losses cuts costs and can be achieved through demand response mechanisms. However, directly minimising losses requires accurate values of the line impedances, which can be difficult to obtain. Flattening load over time and balancing load across phases have both been proposed as alternate solutions which indirectly reduce losses. Here, the practical differences between load flattening and explicitly minimising losses are quantified using simulations of residential charging in European style, three-phase distribution networks. Then, a new smart charging strategy, which incorporates phase balancing as a secondary objective to load flattening, is proposed. This requires only the knowledge of the phase that each load is on and achieves 30–70% of the potential reduction in losses.https://digital-library.theiet.org/content/journals/10.1049/iet-stg.2019.0216distribution networksbattery powered vehiclesdemand side managementelectric vehicle chargingload distributioncoordinated electric vehicle chargingnetwork impedancesdistribution systemdemand response mechanismsflattening loadbalancing loadload flatteningresidential chargingthree-phase distribution networkssmart charging strategy |
| spellingShingle | Constance Crozier Matthew Deakin Thomas Morstyn Malcolm McCulloch Coordinated electric vehicle charging to reduce losses without network impedances IET Smart Grid distribution networks battery powered vehicles demand side management electric vehicle charging load distribution coordinated electric vehicle charging network impedances distribution system demand response mechanisms flattening load balancing load load flattening residential charging three-phase distribution networks smart charging strategy |
| title | Coordinated electric vehicle charging to reduce losses without network impedances |
| title_full | Coordinated electric vehicle charging to reduce losses without network impedances |
| title_fullStr | Coordinated electric vehicle charging to reduce losses without network impedances |
| title_full_unstemmed | Coordinated electric vehicle charging to reduce losses without network impedances |
| title_short | Coordinated electric vehicle charging to reduce losses without network impedances |
| title_sort | coordinated electric vehicle charging to reduce losses without network impedances |
| topic | distribution networks battery powered vehicles demand side management electric vehicle charging load distribution coordinated electric vehicle charging network impedances distribution system demand response mechanisms flattening load balancing load load flattening residential charging three-phase distribution networks smart charging strategy |
| url | https://digital-library.theiet.org/content/journals/10.1049/iet-stg.2019.0216 |
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