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电网技术  2014 

主从控制模式下有源配电网供电恢复研究

DOI: 10.13335/j.1000-3673.pst.2014.09.041, PP. 2575-2581

Keywords: 有源配电网,供电恢复,多代理系统,孤岛运行,主从控制,静态稳定裕度

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Abstract:

有源配电网发生故障后，综合利用备用联络线路与内部DG的孤岛运行能力为故障后的停电负荷综合恢复供电，可有效提高配电网的供电可靠性。针对此综合优化问题，提出了DG孤岛运行静态稳定裕度水平的概念，建立了有源配电网恢复供电的多目标数学模型，并通过将备用联络线路等值为DG的方式，有效简化了综合优化问题的复杂性。鉴于配电网的分布式结构及供电恢复决策的多阶段性，基于多代理技术构建了由协调层、决策层和设备层构成的多层分布式智能决策系统，并充分考虑了DG的类型及控制方式，基于孤岛的主从控制模式对恢复供电方案进行了优化计算。最后对包含3条馈线、7台DG的有源配电网的恢复供电进行了仿真计算，仿真结果表明所提模型与算法能够充分利用备用线路和各种DG资源，恢复方案切实可行。

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