Operational adequacy studies of power systems with wind farms and energy storages
In a power system with high renewable power penetration, uncertain and intermittent characteristics of renewable energy resources become major concerns of system planning and operation. In such a power system, conventional thermal or hydro units have to be dispatched, shut down or started up more fr...
| Main Authors: | , , |
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2013
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| Online Access: | https://hdl.handle.net/10356/102474 http://hdl.handle.net/10220/16524 |
| _version_ | 1811685025672855552 |
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| author | Wang, Peng Gao, Zhiyong Tjernberg, Lina Bertling |
| author2 | School of Electrical and Electronic Engineering |
| author_facet | School of Electrical and Electronic Engineering Wang, Peng Gao, Zhiyong Tjernberg, Lina Bertling |
| author_sort | Wang, Peng |
| collection | NTU |
| description | In a power system with high renewable power penetration, uncertain and intermittent characteristics of renewable energy resources become major concerns of system planning and operation. In such a power system, conventional thermal or hydro units have to be dispatched, shut down or started up more frequently to incorporate load, renewable resource variation and system failures. Slow ramp up (or down) of conventional units may cause energy shortage (or surplus) in power systems with high wind power penetration or in isolated micro grids with limited dispatchable capacity. This paper proposes a technique to evaluate operational reliability and energy utilization efficiency of power systems with high wind power penetration. The ramp rate of a conventional generator and energy storage system (ESS) are considered in the proposed technique. The effect of slow ramp-up rate or fast reduction of wind speed on system reliability is measured by the expected energy not supplied. A new index designated as the expected energy not used is proposed and formulated to represent energy surplus due to fast increase of wind speed and slow ramp down of conventional units. The IEEE-RTS is used to illustrate the applications of the proposed method. |
| first_indexed | 2024-10-01T04:37:58Z |
| format | Journal Article |
| id | ntu-10356/102474 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T04:37:58Z |
| publishDate | 2013 |
| record_format | dspace |
| spelling | ntu-10356/1024742020-03-07T14:00:34Z Operational adequacy studies of power systems with wind farms and energy storages Wang, Peng Gao, Zhiyong Tjernberg, Lina Bertling School of Electrical and Electronic Engineering DRNTU::Engineering::Electrical and electronic engineering::Electric power In a power system with high renewable power penetration, uncertain and intermittent characteristics of renewable energy resources become major concerns of system planning and operation. In such a power system, conventional thermal or hydro units have to be dispatched, shut down or started up more frequently to incorporate load, renewable resource variation and system failures. Slow ramp up (or down) of conventional units may cause energy shortage (or surplus) in power systems with high wind power penetration or in isolated micro grids with limited dispatchable capacity. This paper proposes a technique to evaluate operational reliability and energy utilization efficiency of power systems with high wind power penetration. The ramp rate of a conventional generator and energy storage system (ESS) are considered in the proposed technique. The effect of slow ramp-up rate or fast reduction of wind speed on system reliability is measured by the expected energy not supplied. A new index designated as the expected energy not used is proposed and formulated to represent energy surplus due to fast increase of wind speed and slow ramp down of conventional units. The IEEE-RTS is used to illustrate the applications of the proposed method. 2013-10-16T05:07:32Z 2019-12-06T20:55:32Z 2013-10-16T05:07:32Z 2019-12-06T20:55:32Z 2012 2012 Journal Article Wang, P., Gao, Z. Y., & Tjernberg, L. B. (2012). Operational adequacy studies of power systems with wind farms and energy storages. IEEE transactions on power systems, 27(4), 2377-2384. https://hdl.handle.net/10356/102474 http://hdl.handle.net/10220/16524 10.1109/TPWRS.2012.2201181 en IEEE transactions on power systems |
| spellingShingle | DRNTU::Engineering::Electrical and electronic engineering::Electric power Wang, Peng Gao, Zhiyong Tjernberg, Lina Bertling Operational adequacy studies of power systems with wind farms and energy storages |
| title | Operational adequacy studies of power systems with wind farms and energy storages |
| title_full | Operational adequacy studies of power systems with wind farms and energy storages |
| title_fullStr | Operational adequacy studies of power systems with wind farms and energy storages |
| title_full_unstemmed | Operational adequacy studies of power systems with wind farms and energy storages |
| title_short | Operational adequacy studies of power systems with wind farms and energy storages |
| title_sort | operational adequacy studies of power systems with wind farms and energy storages |
| topic | DRNTU::Engineering::Electrical and electronic engineering::Electric power |
| url | https://hdl.handle.net/10356/102474 http://hdl.handle.net/10220/16524 |
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