An independently controlled energy storage to support short term frequency fluctuations in weak electrical grids
This paper proposes the use of Energy Storage (ES) to support frequency fluctuations in weak grids powered by low-power synchronous generators (SGs). Traditionally, large synchronous generators rely on high inertia and governor control to guarantee the frequency stability of the network. The scenari...
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| Format: | Article |
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Elsevier
2018
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| Online Access: | https://eprints.nottingham.ac.uk/52059/ |
| _version_ | 1848798638397980672 |
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| author | Jayamaha, Prasanthi Charmalee Costabeber, Alessando Williams, Arthur Sumner, M. |
| author_facet | Jayamaha, Prasanthi Charmalee Costabeber, Alessando Williams, Arthur Sumner, M. |
| author_sort | Jayamaha, Prasanthi Charmalee |
| building | Nottingham Research Data Repository |
| collection | Online Access |
| description | This paper proposes the use of Energy Storage (ES) to support frequency fluctuations in weak grids powered by low-power synchronous generators (SGs). Traditionally, large synchronous generators rely on high inertia and governor control to guarantee the frequency stability of the network. The scenario changes in networks with a large penetration of small distributed generators (DGs) with smaller inertia, where load variations can lead to large frequency deviations, violating the over/under frequency protection limits. The proposed energy storage control injects active power during load transients so that the frequency is constrained within predefined thresholds. The system frequency is detected by a Double Second-Order Generalised Integrator Frequency Locked Loop (DSOGI-FLL), eliminating the need for communication between energy storage and synchronous generator and providing “plug-and-play” capability. The proposed method combined with the continuous speed governing supports the frequency well within the primary frequency transient requirements. The solution has been validated using an 8kW laboratory system. |
| first_indexed | 2025-11-14T20:22:57Z |
| format | Article |
| id | nottingham-52059 |
| institution | University of Nottingham Malaysia Campus |
| institution_category | Local University |
| last_indexed | 2025-11-14T20:22:57Z |
| publishDate | 2018 |
| publisher | Elsevier |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | nottingham-520592020-05-04T19:50:08Z https://eprints.nottingham.ac.uk/52059/ An independently controlled energy storage to support short term frequency fluctuations in weak electrical grids Jayamaha, Prasanthi Charmalee Costabeber, Alessando Williams, Arthur Sumner, M. This paper proposes the use of Energy Storage (ES) to support frequency fluctuations in weak grids powered by low-power synchronous generators (SGs). Traditionally, large synchronous generators rely on high inertia and governor control to guarantee the frequency stability of the network. The scenario changes in networks with a large penetration of small distributed generators (DGs) with smaller inertia, where load variations can lead to large frequency deviations, violating the over/under frequency protection limits. The proposed energy storage control injects active power during load transients so that the frequency is constrained within predefined thresholds. The system frequency is detected by a Double Second-Order Generalised Integrator Frequency Locked Loop (DSOGI-FLL), eliminating the need for communication between energy storage and synchronous generator and providing “plug-and-play” capability. The proposed method combined with the continuous speed governing supports the frequency well within the primary frequency transient requirements. The solution has been validated using an 8kW laboratory system. Elsevier 2018-12-01 Article PeerReviewed Jayamaha, Prasanthi Charmalee, Costabeber, Alessando, Williams, Arthur and Sumner, M. (2018) An independently controlled energy storage to support short term frequency fluctuations in weak electrical grids. International Journal of Electrical Power and Energy Systems, 103 . pp. 562-576. ISSN 0142-0615 Energy storage systems; Primary frequency Control; Weak grids; DSOGIFLL; Distributed generation https://www.sciencedirect.com/science/article/pii/S0142061516313102 doi:10.1016/j.ijepes.2018.05.023 doi:10.1016/j.ijepes.2018.05.023 |
| spellingShingle | Energy storage systems; Primary frequency Control; Weak grids; DSOGIFLL; Distributed generation Jayamaha, Prasanthi Charmalee Costabeber, Alessando Williams, Arthur Sumner, M. An independently controlled energy storage to support short term frequency fluctuations in weak electrical grids |
| title | An independently controlled energy storage to support short term frequency fluctuations in weak electrical grids |
| title_full | An independently controlled energy storage to support short term frequency fluctuations in weak electrical grids |
| title_fullStr | An independently controlled energy storage to support short term frequency fluctuations in weak electrical grids |
| title_full_unstemmed | An independently controlled energy storage to support short term frequency fluctuations in weak electrical grids |
| title_short | An independently controlled energy storage to support short term frequency fluctuations in weak electrical grids |
| title_sort | independently controlled energy storage to support short term frequency fluctuations in weak electrical grids |
| topic | Energy storage systems; Primary frequency Control; Weak grids; DSOGIFLL; Distributed generation |
| url | https://eprints.nottingham.ac.uk/52059/ https://eprints.nottingham.ac.uk/52059/ https://eprints.nottingham.ac.uk/52059/ |