上海交通大学学报 ›› 2024, Vol. 58 ›› Issue (1): 30-39.doi: 10.16183/j.cnki.jsjtu.2022.366
收稿日期:
2022-09-19
修回日期:
2022-10-07
接受日期:
2022-11-10
出版日期:
2024-01-28
发布日期:
2024-01-16
通讯作者:
姚建刚,教授,博士生导师,电话(Tel.):0731-88821872;E-mail:作者简介:
叶 伦(1992-),博士生,从事电力系统优化、辅助服务市场研究.
基金资助:
YE Lun1, OUYANG Xu1, YAO Jiangang1(), YANG Shengjie2, YIN Jungang1
Received:
2022-09-19
Revised:
2022-10-07
Accepted:
2022-11-10
Online:
2024-01-28
Published:
2024-01-16
摘要:
在含高比例可再生能源的电力系统中,考虑多重不确定性因素并实现源荷协调的优化调度是电力系统运行的重要问题.为此,构建了基于多场景的概率性旋转备用优化模型,该模型综合考虑了风电和光伏出力预测误差、负荷预测误差及发电机非计划停运等多重不确定性因素对旋转备用容量的影响,将可再生能源弃电、系统切负荷分别作为特殊的备用资源融入发电日前调度计划,以提高电力系统的经济运行效率.改进了系统可再生能源削减期望和电量不足期望值两个可靠性指标的计算方法,减少了与该指标相关的不等式约束条件,用于提升模型的计算性能.该备用优化模型在兼顾场景多样性的同时,实现了多场景下系统的总成本最优.以改进的IEEE-RTS系统作为算例,验证了所提模型的有效性.算例结果表明,改进的可靠性指标计算方法能够有效降低备用优化模型的求解时间;建立的最优旋转备用优化方法能够实现系统日前旋转备用容量的动态配置,提升系统经济运行水平.
中图分类号:
叶伦, 欧阳旭, 姚建刚, 杨胜杰, 尹骏刚. 考虑多重不确定性因素的可靠性指标计算与备用容量优化[J]. 上海交通大学学报, 2024, 58(1): 30-39.
YE Lun, OUYANG Xu, YAO Jiangang, YANG Shengjie, YIN Jungang. Reliability Index Calculation and Reserve Capacity Optimization Considering Multiple Uncertainties[J]. Journal of Shanghai Jiao Tong University, 2024, 58(1): 30-39.
表1
3种方法求解SCUC的性能对比
求解精度 | NK | I | II | III | |||||
---|---|---|---|---|---|---|---|---|---|
EC /美元 | 计算时间/s | EC /美元 | 计算时间/s | EC /美元 | 计算时间/s | ||||
10-3 | 3 | 689 421 | 7.28 | 689 426 | 2.30 | 689 370 | 1.16 | ||
5 | 695 448 | 51.12 | 695 226 | 2.81 | 695 234 | 1.06 | |||
7 | 697 071 | 94.21 | 697 008 | 4.68 | 697 058 | 1.35 | |||
9 | 697 487 | 181.11 | 697 380 | 7.05 | 697 398 | 1.86 | |||
10-6 | 3 | 689 231 | 23.39 | 689 231 | 10.17 | 689 231 | 2.38 | ||
5 | 695 167 | 181.33 | 695 167 | 48.98 | 695 167 | 4.21 | |||
7 | — | >1 000 | 696 910 | 60.94 | 696 910 | 5.43 | |||
9 | — | >1 000 | 697 342 | 80.11 | 697 342 | 5.46 |
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