Capacity optimization and operational strategy of the wind-energy storage hybrid systems for energy dispatching
©, 2015, Power System Technology Press. All right reserved. Wind power output fluctuation brings a lot of negative influences on utility grid as a result of increasing penetration level of wind power. A supercapacitor-battery hybrid storage system is proposed to balance the wind power and planned ex...
| Main Authors: | , , , , , |
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| Format: | Journal Article |
| Published: |
Power System Technology Press
2015
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| Online Access: | http://hdl.handle.net/20.500.11937/47188 |
| _version_ | 1848757765642649600 |
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| author | Sun, C. Yuan, Y. Choi, San Shing Li, M. Zhang, X. Cao, Y. |
| author_facet | Sun, C. Yuan, Y. Choi, San Shing Li, M. Zhang, X. Cao, Y. |
| author_sort | Sun, C. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | ©, 2015, Power System Technology Press. All right reserved. Wind power output fluctuation brings a lot of negative influences on utility grid as a result of increasing penetration level of wind power. A supercapacitor-battery hybrid storage system is proposed to balance the wind power and planned export power of the wind farm. Firstly, using empirical mode decomposition (EMD), the difference between planned export power and the original wind power (unbalanced power, UP) is analyzed to obtain the intrinsic mode functions (IMFs). Secondly, a mathematic method is then developed to confirm a so-called gap frequency to decompose the unbalanced power into high and low frequency components based on the concept of minimum overlap energy. Unbalanced power smoothing is then achieved by dispatching the powers of supercapatiors and batteries to compensate the high- and low-frequency IMFs according to the characteristics of supercapacitor and batteries respectively. Finally, based on a set of data acquired from an existing wind farm, a hybrid storage system (HSS) is designed aiming at minimizing the capital cost and also can make wind power approach the planned export power of the wind farm in a great extent, numerical analysis verifies the efficiency of the developed method. |
| first_indexed | 2025-11-14T09:33:18Z |
| format | Journal Article |
| id | curtin-20.500.11937-47188 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T09:33:18Z |
| publishDate | 2015 |
| publisher | Power System Technology Press |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-471882017-09-13T14:10:55Z Capacity optimization and operational strategy of the wind-energy storage hybrid systems for energy dispatching Sun, C. Yuan, Y. Choi, San Shing Li, M. Zhang, X. Cao, Y. ©, 2015, Power System Technology Press. All right reserved. Wind power output fluctuation brings a lot of negative influences on utility grid as a result of increasing penetration level of wind power. A supercapacitor-battery hybrid storage system is proposed to balance the wind power and planned export power of the wind farm. Firstly, using empirical mode decomposition (EMD), the difference between planned export power and the original wind power (unbalanced power, UP) is analyzed to obtain the intrinsic mode functions (IMFs). Secondly, a mathematic method is then developed to confirm a so-called gap frequency to decompose the unbalanced power into high and low frequency components based on the concept of minimum overlap energy. Unbalanced power smoothing is then achieved by dispatching the powers of supercapatiors and batteries to compensate the high- and low-frequency IMFs according to the characteristics of supercapacitor and batteries respectively. Finally, based on a set of data acquired from an existing wind farm, a hybrid storage system (HSS) is designed aiming at minimizing the capital cost and also can make wind power approach the planned export power of the wind farm in a great extent, numerical analysis verifies the efficiency of the developed method. 2015 Journal Article http://hdl.handle.net/20.500.11937/47188 10.13335/j.1000-3673.pst.2015.08.007 Power System Technology Press restricted |
| spellingShingle | Sun, C. Yuan, Y. Choi, San Shing Li, M. Zhang, X. Cao, Y. Capacity optimization and operational strategy of the wind-energy storage hybrid systems for energy dispatching |
| title | Capacity optimization and operational strategy of the wind-energy storage hybrid systems for energy dispatching |
| title_full | Capacity optimization and operational strategy of the wind-energy storage hybrid systems for energy dispatching |
| title_fullStr | Capacity optimization and operational strategy of the wind-energy storage hybrid systems for energy dispatching |
| title_full_unstemmed | Capacity optimization and operational strategy of the wind-energy storage hybrid systems for energy dispatching |
| title_short | Capacity optimization and operational strategy of the wind-energy storage hybrid systems for energy dispatching |
| title_sort | capacity optimization and operational strategy of the wind-energy storage hybrid systems for energy dispatching |
| url | http://hdl.handle.net/20.500.11937/47188 |