Study on Optimal Decision of Unit Commitment with Flexible Reserve Participation in Power Grid
The increasing complexity of the grid structure makes the grid′s ability to respond to various accidents urgently need to be improved, and a reasonable increase in grid reserve capacity can help reduce grid operation risks. Under extreme conditions of the power grid, the risk of insufficient reserve...
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| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | Chinese |
| Published: |
Harbin University of Science and Technology Publications
2023-06-01
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| Series: | Journal of Harbin University of Science and Technology |
| Subjects: | |
| Online Access: | https://hlgxb.hrbust.edu.cn/#/digest?ArticleID=2214 |
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| Summary: | The increasing complexity of the grid structure makes the grid′s ability to respond to various accidents urgently need to be improved, and a reasonable increase in grid reserve capacity can help reduce grid operation risks. Under extreme conditions of the power grid, the risk of insufficient reserve is considered in this article. New energy frequency modulation, DC modulation and interruptible load are classified as grid flexible reserve, and the reserve potential is quantified. Secondly, a unit combination model considering the flexible reserve is established with the objective function of minimizing the total operating cost of the system, and the optimization algorithm program is written in the Lingo environment to optimize a variety of reserve resources. Finally, an example is analyzed in IEEE 39-bus system. The results show that the built model redistributes the day-ahead unit plan under the condition of ensuring the safety of the system, which can realize the optimal allocation of resources, effectively alleviate the pressure of conventional reserve, and ensure the stable operation of the system. |
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| ISSN: | 1007-2683 |