| 引用本文: | 李本新,樊 鑫,姜 涛,等.考虑超分辨率风电不确定性的鲁棒安全经济调度[J].电力系统保护与控制,2025,53(24):89-99.[点击复制] |
| LI Benxin,FAN Xin,JIANG Tao,et al.Robust security-constrained economic dispatch considering super-resolution wind power uncertainty[J].Power System Protection and Control,2025,53(24):89-99[点击复制] |
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| 摘要: |
| 针对风电功率在时刻间超分辨率下不可预知的非线性波动所引发的电力失衡和线路潮流越限风险，提出一种考虑超分辨率风电不确定性的鲁棒安全经济调度方法。首先，基于主时间尺度各时刻风电功率预测值和次时间尺度风电功率波动速度的区间变动范围，提出了精细考虑超分辨率波动不确定性的风电出力模型。在此基础上，通过引入次时间尺度运行可行性约束建立考虑超分辨率风电不确定性的鲁棒安全实时经济调度模型。然后，针对含随机变量的次时间尺度运行约束所导致的模型难以直接求解的问题，在约束机理分析基础上，将其等效变换为由若干严峻场景表达的易于求解的确定性约束。最后，以修改的6节点系统和IEEE118节点系统为例进行分析，验证了所提模型和方法能够有效解决时刻间风电功率非线性波动所引起的电力失衡和潮流越限问题。 |
| 关键词: 经济调度 鲁棒优化 多时间尺度 超分辨率不确定性 |
| DOI：10.19783/j.cnki.pspc.250130 |
| 投稿时间：2025-02-09修订日期：2025-09-30 |
| 基金项目:国家重点研发计划项目资助(2022YFB2404000)；国网吉林省电力公司科技项目资助(2024-11) |
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| Robust security-constrained economic dispatch considering super-resolution wind power uncertainty |
| LI Benxin1,FAN Xin1,JIANG Tao1,CHEN Houhe1,ZHENG Xuerui2,DONG Moting2 |
| (1. Key Laboratory of Modern Power System Simulation and Control & Renewable Energy Technology, Ministry of
Education (Northeast Electric Power University), Jilin 132012, China; 2. Jilin Power Supply Company,
State Grid Jilin Electric Power Co., Ltd., Jilin 132000, China) |
| Abstract: |
| Aiming at the risk of power imbalance and line overload caused by unpredictable fluctuations of wind power at super-resolution time scales, this paper proposes a robust security-constrained economic dispatch method considering super-resolution wind power uncertainty. First, a wind power output model is developed to capture super-resolution uncertainty with high granularity based on the interval variation ranges of wind power forecasts at the primary time scale and the fluctuation rates at the secondary time scale. On this basis, by introducing feasible operation constraints at the secondary time scale, a robust real-time security-constrained economic dispatch model incorporating super-resolution wind uncertainty is formulated. Then, since the secondary time-scale operational constraints involve stochastic variables, making the model difficult to solve directly, the constraints are analyzed and equivalently transformed into a set of tractable deterministic constraints represented by several worst-case scenarios. Finally, case studies on the modified 6-bus and IEEE 118-bus systems demonstrate that the proposed model and methodology can effectively address the issues of power imbalance and line flow violations caused by nonlinear inter-temporal wind power fluctuations. |
| Key words: economic dispatch robust optimization multi-time scales super-resolution uncertainty |
