Day-ahead load optimal distribution of thermal power coupled electric energy storage frequency regulation system considering the effect of overtemperature
Coupling energy storage devices on the generation side can significantly improve the AGC frequency regulation performance of thermal power units and bring frequency regulation benefits. In the traditional joint frequency regulation mode, energy storage is generally used to compensate the deviation b...
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
EDP Sciences
2023-01-01
|
| Series: | E3S Web of Conferences |
| Subjects: | |
| Online Access: | https://www.e3s-conferences.org/articles/e3sconf/pdf/2023/12/e3sconf_esat2023_03005.pdf |
| _version_ | 1797850872311447552 |
|---|---|
| author | Zhou Xichao Wang Nan Li Zhen Zhao Pengxiang Cong Lin |
| author_facet | Zhou Xichao Wang Nan Li Zhen Zhao Pengxiang Cong Lin |
| author_sort | Zhou Xichao |
| collection | DOAJ |
| description | Coupling energy storage devices on the generation side can significantly improve the AGC frequency regulation performance of thermal power units and bring frequency regulation benefits. In the traditional joint frequency regulation mode, energy storage is generally used to compensate the deviation between thermal power output and dispatching command, without considering the deep coordination between thermal power units and energy storage system. Thermal power units are still in fast variable load operation state, and the potential of coupled energy storage in improving the safety and other comprehensive performance of the units has not been explored deeply. Therefore, in this paper, the energy storage system is used to actively cooperate with the unit for secondary frequency regulation, and the load command is optimally distributed by minimizing the total cost function, including the variable load cost of the unit. The maintenance cost caused by overtemperature is considered in the cost model, and is analyzed through a simulation example. The results show that the total cost, considering the influence of over temperature on the optimal load distribution, is lower than that when the unit responds at a constant high load changing rate. The active load bearing of energy storage alleviates the cost increase caused by rapid load changing of the unit, making the unit benefit from energy storage and the total cost tends to be optimal. |
| first_indexed | 2024-04-09T19:07:33Z |
| format | Article |
| id | doaj.art-e2d703000107422883b06b90c759fb8a |
| institution | Directory Open Access Journal |
| issn | 2267-1242 |
| language | English |
| last_indexed | 2024-04-09T19:07:33Z |
| publishDate | 2023-01-01 |
| publisher | EDP Sciences |
| record_format | Article |
| series | E3S Web of Conferences |
| spelling | doaj.art-e2d703000107422883b06b90c759fb8a2023-04-07T08:56:59ZengEDP SciencesE3S Web of Conferences2267-12422023-01-013750300510.1051/e3sconf/202337503005e3sconf_esat2023_03005Day-ahead load optimal distribution of thermal power coupled electric energy storage frequency regulation system considering the effect of overtemperatureZhou Xichao0Wang Nan1Li Zhen2Zhao Pengxiang3Cong Lin4State Grid Integrated Energy Service Group Co., LtdState Grid Integrated Energy Service Group Co., LtdState Grid Integrated Energy Service Group Co., LtdState Grid Integrated Energy Service Group Co., LtdState Grid Integrated Energy Service Group Co., LtdCoupling energy storage devices on the generation side can significantly improve the AGC frequency regulation performance of thermal power units and bring frequency regulation benefits. In the traditional joint frequency regulation mode, energy storage is generally used to compensate the deviation between thermal power output and dispatching command, without considering the deep coordination between thermal power units and energy storage system. Thermal power units are still in fast variable load operation state, and the potential of coupled energy storage in improving the safety and other comprehensive performance of the units has not been explored deeply. Therefore, in this paper, the energy storage system is used to actively cooperate with the unit for secondary frequency regulation, and the load command is optimally distributed by minimizing the total cost function, including the variable load cost of the unit. The maintenance cost caused by overtemperature is considered in the cost model, and is analyzed through a simulation example. The results show that the total cost, considering the influence of over temperature on the optimal load distribution, is lower than that when the unit responds at a constant high load changing rate. The active load bearing of energy storage alleviates the cost increase caused by rapid load changing of the unit, making the unit benefit from energy storage and the total cost tends to be optimal.https://www.e3s-conferences.org/articles/e3sconf/pdf/2023/12/e3sconf_esat2023_03005.pdfjoint frequency regulationcost evaluation modelovertemperature cost conversionvariable load rateload optimal distribution |
| spellingShingle | Zhou Xichao Wang Nan Li Zhen Zhao Pengxiang Cong Lin Day-ahead load optimal distribution of thermal power coupled electric energy storage frequency regulation system considering the effect of overtemperature E3S Web of Conferences joint frequency regulation cost evaluation model overtemperature cost conversion variable load rate load optimal distribution |
| title | Day-ahead load optimal distribution of thermal power coupled electric energy storage frequency regulation system considering the effect of overtemperature |
| title_full | Day-ahead load optimal distribution of thermal power coupled electric energy storage frequency regulation system considering the effect of overtemperature |
| title_fullStr | Day-ahead load optimal distribution of thermal power coupled electric energy storage frequency regulation system considering the effect of overtemperature |
| title_full_unstemmed | Day-ahead load optimal distribution of thermal power coupled electric energy storage frequency regulation system considering the effect of overtemperature |
| title_short | Day-ahead load optimal distribution of thermal power coupled electric energy storage frequency regulation system considering the effect of overtemperature |
| title_sort | day ahead load optimal distribution of thermal power coupled electric energy storage frequency regulation system considering the effect of overtemperature |
| topic | joint frequency regulation cost evaluation model overtemperature cost conversion variable load rate load optimal distribution |
| url | https://www.e3s-conferences.org/articles/e3sconf/pdf/2023/12/e3sconf_esat2023_03005.pdf |
| work_keys_str_mv | AT zhouxichao dayaheadloadoptimaldistributionofthermalpowercoupledelectricenergystoragefrequencyregulationsystemconsideringtheeffectofovertemperature AT wangnan dayaheadloadoptimaldistributionofthermalpowercoupledelectricenergystoragefrequencyregulationsystemconsideringtheeffectofovertemperature AT lizhen dayaheadloadoptimaldistributionofthermalpowercoupledelectricenergystoragefrequencyregulationsystemconsideringtheeffectofovertemperature AT zhaopengxiang dayaheadloadoptimaldistributionofthermalpowercoupledelectricenergystoragefrequencyregulationsystemconsideringtheeffectofovertemperature AT conglin dayaheadloadoptimaldistributionofthermalpowercoupledelectricenergystoragefrequencyregulationsystemconsideringtheeffectofovertemperature |