高比例可再生能源配电网两阶段自适应鲁棒弹性提升策略
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TM732

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江苏省自然科学青年基金资助项目(BK20230384);中国博士后科学基金资助项目(2023M733780)


Two stage adaptive robust resilience enhancement strategy for distribution network with high penetration of renewable energy
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    摘要:

    针对极端灾害下高比例可再生能源接入的配电网供电恢复问题,文中提出灾前-灾后两阶段自适应鲁棒优化模型,采用不确定集和可调鲁棒参数对可再生能源出力及负荷需求不确定性进行建模。模型在灾前阶段进行小时级预防性机组组合,调整可控机组开停机状态及出力,优化网络拓扑,保障预防阶段潮流合理分布;灾后阶段执行网络拓扑重构、应急资源实时调度、调整发电机出力和差异化切负荷方案等操作以恢复供电。首先,采用列和约束生成算法(column and constraint generation algorithm,C&CG)将模型分解为主问题及子问题。然后,采用对偶理论、大M法对子问题进行对偶和线性化。最后,交替迭代求解得到最优弹性提升策略。在改进的PG&E 69节点系统进行算例仿真,验证所提模型在极端灾害场景下能够平衡系统鲁棒性及经济性,并有效应对可再生能源出力不确定性。

    Abstract:

    A two-stage adaptive robust optimization model for power restoration in distribution networks with high penetration of renewable energy under extreme disasters is proposed in this paper. Uncertainty sets and adjustable robust parameters are employed to depict the uncertainty of renewable energy output and load demand. In the pre-disaster stage, unit commitment strategy and dispatch strategy of controllable generators are obtained to guarantee the reasonable distribution of power flow. In the post-disaster stage, network reconfiguration, emergency resources dispatch, adjustment strategy of controllable generators and load shedding are employed to perform fault recovery on the distribution network. The column and constraint generation algorithm (C&CG) is used to decompose the model into the main problem and subproblem. The dual theory and the big M method are employed to dualize and linearize the subproblem. The optimal recovery strategy can be obtained by alternating iterations between the main problem and the transformed subproblem. Case studies conducted on the improved PG&E 69-node system indicate that the proposed model is able to balance the robustness and economy under extreme disaster scenarios.

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邬嘉雨,杨祺铭,丁苒苒,季陈林,李东森,李峰.高比例可再生能源配电网两阶段自适应鲁棒弹性提升策略[J].电力工程技术,2025,44(6):174-182. WU Jiayu, YANG Qiming, DING Ranran, JI Chenlin, LI Dongsen, LI Feng. Two stage adaptive robust resilience enhancement strategy for distribution network with high penetration of renewable energy[J]. Electric Power Engineering Technology,2025,44(6):174-182.

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  • 收稿日期:2025-06-12
  • 最后修改日期:2025-08-13
  • 在线发布日期: 2025-12-03
  • 出版日期: 2025-11-28
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