发电技术 ›› 2024, Vol. 45 ›› Issue (6): 1173-1185.DOI: 10.12096/j.2096-4528.pgt.23073
• 智能电网 • 上一篇
王宇绅1, 陈皓勇1, 黄宇翔1, 吴晓彬1, 朱彦瑾1, 张健彬2
收稿日期:
2023-12-07
修回日期:
2024-03-20
出版日期:
2024-12-31
发布日期:
2024-12-30
通讯作者:
陈皓勇
作者简介:
基金资助:
Yushen WANG1, Haoyong CHEN1, Yuxiang HUANG1, Xiaobin WU1, Yanjin ZHU1, Jianbin ZHANG2
Received:
2023-12-07
Revised:
2024-03-20
Published:
2024-12-31
Online:
2024-12-30
Contact:
Haoyong CHEN
Supported by:
摘要:
目的 为应对虚拟电厂(virtual power plant,VPP)在参与电能量和需求响应市场时所面临的新能源出力和负荷不确定性问题,提出一种考虑多重不确定性的鲁棒优化调度策略,旨在降低鲁棒优化的保守性并提高VPP的经济效益。 方法 构建基于条件风险价值(conditional value at risk,CVaR)的多面体不确定性集,在此基础上,考虑风电、光伏出力和负荷的不确定性,建立VPP参与电能量和需求响应市场策略的日前两阶段鲁棒优化模型。基于行列生成(column-and-constraint generation,C&CG)算法和拉格朗日对偶理论,将所建模型分为可利用求解器求解的主问题和子问题。最后,利用蒙特卡罗方法生成大量风电、光伏和负荷数据,对所提策略进行仿真分析,并与其他方案的优化结果进行对比。 结果 所提策略采用基于CVaR的多面体不确定性集,能够充分利用历史数据,相比于采用传统不确定性集的方案,VPP的总成本降低了约2%。 结论 所提策略可以显著降低鲁棒优化结果的保守性,并在多重不确定性条件下提升VPP参与市场的经济性。
中图分类号:
王宇绅, 陈皓勇, 黄宇翔, 吴晓彬, 朱彦瑾, 张健彬. 多重不确定性下的虚拟电厂参与电能量和需求响应市场鲁棒优化调度策略[J]. 发电技术, 2024, 45(6): 1173-1185.
Yushen WANG, Haoyong CHEN, Yuxiang HUANG, Xiaobin WU, Yanjin ZHU, Jianbin ZHANG. Robust Optimal Scheduling Strategy for Virtual Power Plant Participation in Electric Energy and Demand Response Markets Under Multiple Uncertainties[J]. Power Generation Technology, 2024, 45(6): 1173-1185.
项目 | 参数 | 数值 |
---|---|---|
燃气轮机 | 575 | |
485.9 | ||
储能系统 | 充电效率/% | 95 |
放电效率/% | 95 | |
75 | ||
可转移负荷 | 2 800 | |
2.96 | ||
置信水平 | 0.95 |
表1 虚拟电厂运行参数
Tab. 1 Operating parameters of virtual power plant
项目 | 参数 | 数值 |
---|---|---|
燃气轮机 | 575 | |
485.9 | ||
储能系统 | 充电效率/% | 95 |
放电效率/% | 95 | |
75 | ||
可转移负荷 | 2 800 | |
2.96 | ||
置信水平 | 0.95 |
方案 | 日前调度成本 | 实时平衡成本 | 合计 |
---|---|---|---|
本文优化策略 | 68 315.12 | 3 134.76 | 71 449.88 |
方案1 | 89 213.34 | 3 425.75 | 92 639.09 |
方案2 | 85 406.13 | 3 672.13 | 89 078.26 |
方案3 | 70 016.41 | 2 841.54 | 72 857.95 |
表2 不同方案下优化结果对比 (元)
Tab. 2 Comparison of optimization results under different schemes
方案 | 日前调度成本 | 实时平衡成本 | 合计 |
---|---|---|---|
本文优化策略 | 68 315.12 | 3 134.76 | 71 449.88 |
方案1 | 89 213.34 | 3 425.75 | 92 639.09 |
方案2 | 85 406.13 | 3 672.13 | 89 078.26 |
方案3 | 70 016.41 | 2 841.54 | 72 857.95 |
置信水平 | 日前调度成本/元 |
---|---|
1.00 | 70 016.41 |
0.98 | 69 423.74 |
0.95 | 68 315.12 |
0.90 | 67 653.14 |
0.85 | 66 846.68 |
0.80 | 66 012.76 |
0.75 | 65 782.33 |
0.70 | 64 678.78 |
表3 不同置信水平下虚拟电厂日前调度成本
Tab. 3 Costs of virtual power plant day-ahead dispatch at different confidence levels
置信水平 | 日前调度成本/元 |
---|---|
1.00 | 70 016.41 |
0.98 | 69 423.74 |
0.95 | 68 315.12 |
0.90 | 67 653.14 |
0.85 | 66 846.68 |
0.80 | 66 012.76 |
0.75 | 65 782.33 |
0.70 | 64 678.78 |
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