High-dimension tie-line security regions for renewable accommodations

被引：1

作者：

Lin, Wei ^{[1
]}

Jiang, Hua ^{[2
]}

Jian, Haojun ^{[3
]}

Xue, Jingwei ^{[4
]}

Wu, Jianghua ^{[5
]}

Wang, Chongyu ^{[1
]}

Lin, Zhenjia ^{[6
]}

机构：

[1] Hong Kong Polytech Univ, Dept Elect Engn, Hong Kong, Peoples R China

[2] State Grid Jiangsu Elect Power Co Ltd, Changzhou Power Supply Branch, Changzhou, Jiangsu, Peoples R China

[3] State Grid Fuzhou Elect Power Supply Co, Fuzhou, Fujian, Peoples R China

[4] State Grid Fujian Econ Res Inst, Fuzhou, Fujian, Peoples R China

[5] Univ Connecticut, Dept Elect & Comp Engn, Storrs, CT USA

[6] Hong Kong Polytech Univ, Dept Bldg Environm & Energy Engn, Hong Kong, Peoples R China

来源：

ENERGY | 2023年 / 270卷

关键词：

Renewable accommodation; Tie-line security region; High dimension; Fast calculation; SYSTEMS;

D O I：

10.1016/j.energy.2023.126887

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

Tie-line power exchanges among regional power systems facilitate renewable accommodations. Power exchanges can be calculated based on a tie-line security region that provides the feasible region of coupling parameters. However, a tie-line security region is a high-dimension polytope due to multiple time periods and border buses in power system operations, generally leading to a heavy computational burden. A fast calculation for high-dimension tie-line security regions is studied in this paper. The high-dimension polytope across all the time periods is decomposed as a Cartesian production of lower-dimension polytopes at each time period by leveraging dispatch levels of generations. For each lower-dimension polytope, the computational burden brought by multiple border buses is alleviated by aggregating tie-line power. Minimum renewable curtailments are preserved in the tie-line security region by adding an additional dimension, providing the information for renewable accommodations based on the tie-line security region. For coupling parameters within our tie-line security region, a feasible decision of the regional power system always exists. Finally, a decentralized and non-iterative framework is demonstrated to utilize our tie-line security region for renewable accommodations in an interconnected power system. The effectiveness of our methods is corroborated in the IEEE 9-bus system, a 661-bus utility system, and a five-region system.

引用

页数：11