A comparison of grid-connected battery energy storage system designs
This paper presents a method for evaluating grid-connected battery energy storage system (BESS) designs. The steady-state power losses of the grid interface converter, the battery pack, and the balancing circuit are calculated. The reliability of each complete system is calculated using a Markov-bas...
| Main Authors: | , |
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| Format: | Journal article |
| Language: | English |
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IEEE
2016
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| _version_ | 1797103348842758144 |
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| author | Chatzinikolaou, E Rogers, D |
| author_facet | Chatzinikolaou, E Rogers, D |
| author_sort | Chatzinikolaou, E |
| collection | OXFORD |
| description | This paper presents a method for evaluating grid-connected battery energy storage system (BESS) designs. The steady-state power losses of the grid interface converter, the battery pack, and the balancing circuit are calculated. The reliability of each complete system is calculated using a Markov-based modeling approach that takes into account the built-in redundancy of the system as well as performance degradation caused by faults. Finally, a simple economic analysis based on capital cost and efficiency is used to provide a basis for direct comparison between competing system designs. Three design options for a 1-MW 1-MWh BESS connected at 11 kV are compared: a conventional BESS using parallel low voltage power blocks, a BESS using a high-voltage intelligent battery pack, and a BESS using a cascaded H-bridge converter. The results of the analysis indicate that additional power electronics included in the battery pack as part of the intelligent battery pack and H-bridge designs can enhance the reliability of the BESS by an order of magnitude under typical conditions, without increasing the overall cost of the system. |
| first_indexed | 2024-03-07T06:18:52Z |
| format | Journal article |
| id | oxford-uuid:f208382b-0175-4fb9-969a-98a86aa2b9e2 |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-07T06:18:52Z |
| publishDate | 2016 |
| publisher | IEEE |
| record_format | dspace |
| spelling | oxford-uuid:f208382b-0175-4fb9-969a-98a86aa2b9e22022-03-27T12:00:31ZA comparison of grid-connected battery energy storage system designsJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:f208382b-0175-4fb9-969a-98a86aa2b9e2EnglishSymplectic Elements at OxfordIEEE2016Chatzinikolaou, ERogers, DThis paper presents a method for evaluating grid-connected battery energy storage system (BESS) designs. The steady-state power losses of the grid interface converter, the battery pack, and the balancing circuit are calculated. The reliability of each complete system is calculated using a Markov-based modeling approach that takes into account the built-in redundancy of the system as well as performance degradation caused by faults. Finally, a simple economic analysis based on capital cost and efficiency is used to provide a basis for direct comparison between competing system designs. Three design options for a 1-MW 1-MWh BESS connected at 11 kV are compared: a conventional BESS using parallel low voltage power blocks, a BESS using a high-voltage intelligent battery pack, and a BESS using a cascaded H-bridge converter. The results of the analysis indicate that additional power electronics included in the battery pack as part of the intelligent battery pack and H-bridge designs can enhance the reliability of the BESS by an order of magnitude under typical conditions, without increasing the overall cost of the system. |
| spellingShingle | Chatzinikolaou, E Rogers, D A comparison of grid-connected battery energy storage system designs |
| title | A comparison of grid-connected battery energy storage system designs |
| title_full | A comparison of grid-connected battery energy storage system designs |
| title_fullStr | A comparison of grid-connected battery energy storage system designs |
| title_full_unstemmed | A comparison of grid-connected battery energy storage system designs |
| title_short | A comparison of grid-connected battery energy storage system designs |
| title_sort | comparison of grid connected battery energy storage system designs |
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