| 引用本文: | 许丹阳,武志刚,管 霖,等.计及负荷侧频率支持的分布鲁棒频率约束机组组合[J].电力系统保护与控制,2025,53(9):1-13.[点击复制] |
| XU Danyang,WU Zhigang,GUAN Lin,et al.Distributionally robust frequency constrained unit commitment considering load side frequency support[J].Power System Protection and Control,2025,53(9):1-13[点击复制] |
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| 摘要: |
| “双高”电力系统中惯量与备用资源匮乏，频率安全问题凸显，在调度方案中内嵌频率约束、协调优化异质调频资源是应对上述问题的有效途径。为此，提出了一种计及负荷侧频率支持的分布鲁棒频率约束机组组合方案。首先，分析了电力系统频率响应过程，建立计及负荷侧频率支持的系统频率响应模型，并构造频率安全约束集合。其次，采用基于Wasserstein距离的模糊集表征新能源的不确定性，建立纳入频率约束的分布鲁棒机组组合优化模型。针对所提模型高度非凸的特点，采用两阶段分解算法迭代求解，并提出了一种自适应多方向优化割连接主、子问题。最后，基于修改的IEEE39与IEEE118测试系统进行算例分析。结果表明了在新能源电力系统调度方案中考虑频率约束的必要性与计及负荷侧频率支持的重要性，验证了所提机组组合方案的有效性与求解方法的优越性。 |
| 关键词: 频率约束优化调度 机组组合 负荷调频 分布鲁棒优化 分解算法 |
| DOI：10.19783/j.cnki.pspc.240972 |
| 投稿时间：2024-07-24修订日期：2024-10-23 |
| 基金项目:国家自然科学基金项目资助(U22B6007)；南方电网有限公司科技项目资助(YNKJXM20222400) |
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| Distributionally robust frequency constrained unit commitment considering load side frequency support |
| XU Danyang,WU Zhigang,GUAN Lin,LIU Yanling |
| (School of Electric Power Engineering, South China University of Technology, Guangzhou 510640, China) |
| Abstract: |
| In “dual-high” power systems, the lack of inertia and reserves makes frequency security a prominent concern. Embedding frequency constraints and coordinating the optimization of heterogeneous frequency regulation resources in dispatch are effective solutions. Therefore, this paper proposes a distributionally robust frequency constrained unit commitment optimization scheme considering load-side frequency support. First, the system frequency response process is analyzed, and a system frequency response model considering load-side frequency support is established, from which a set of frequency security constraints is constructed. Second, the uncertainty of renewable energy is characterized using fuzzy sets based on the Wasserstein distance, and a distributionally robust optimization model for unit commitment that includes frequency constraints is formulated. Due to the highly non-convex nature of the proposed model, a two-stage decomposition algorithm is employed for iterative solution. Additionally, an adaptive multi-directional cut-plane method is proposed to effectively link the master and subproblems. Finally, case studies are conducted based on modified IEEE 39-bus and IEEE 118-bus test systems. The results demonstrate the necessity of incorporating frequency constraints and the importance of load side frequency support in renewable energy power system dispatch schemes, validating the effectiveness of the proposed unit commitment scheme and the superiority of the solving method. |
| Key words: frequency constrained optimal dispatch unit commitment load side frequency regulation distributionally robust optimization decomposition algorithm |
