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: | Journal article |
| Language: | English |
| Published: |
Institution of Engineering and Technology (IET)
2020
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| _version_ | 1797069046920773632 |
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| author | Crozier, C Deakin, M Morstyn, T McCulloch, M |
| author_facet | Crozier, C Deakin, M Morstyn, T McCulloch, M |
| author_sort | Crozier, C |
| collection | OXFORD |
| 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 | 2024-03-06T22:18:50Z |
| format | Journal article |
| id | oxford-uuid:545502da-97bd-41b2-9251-0a11f0ba38a6 |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-06T22:18:50Z |
| publishDate | 2020 |
| publisher | Institution of Engineering and Technology (IET) |
| record_format | dspace |
| spelling | oxford-uuid:545502da-97bd-41b2-9251-0a11f0ba38a62022-03-26T16:37:13ZCoordinated electric vehicle charging to reduce losses without network impedancesJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:545502da-97bd-41b2-9251-0a11f0ba38a6EnglishSymplectic ElementsInstitution of Engineering and Technology (IET)2020Crozier, CDeakin, MMorstyn, TMcCulloch, MThis 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. |
| spellingShingle | Crozier, C Deakin, M Morstyn, T McCulloch, M Coordinated electric vehicle charging to reduce losses without network impedances |
| 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 |
| work_keys_str_mv | AT crozierc coordinatedelectricvehiclechargingtoreducelosseswithoutnetworkimpedances AT deakinm coordinatedelectricvehiclechargingtoreducelosseswithoutnetworkimpedances AT morstynt coordinatedelectricvehiclechargingtoreducelosseswithoutnetworkimpedances AT mccullochm coordinatedelectricvehiclechargingtoreducelosseswithoutnetworkimpedances |