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考虑交互功率控制的微网经济运行

DOI: 10.13334/j.0258-8013.pcsee.2014.07.002, PP. 1013-1023

Keywords: 微网经济运行,交互功率控制,负荷侧管理,最优合同容量

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Abstract:

研究微网与公共电网交互功率波动控制对微网运行成本的影响。考虑微网潮流约束,提出了不同功率波动约束下多时段微网经济调度方案。为最小化微网运行成本,引入不平衡电价,制定最优合同容量,优化微网储能和负荷侧管理策略,并研究线路传输容量限制、弃风弃光对微网交互功率控制方案和运行成本的影响。分别使用经修改的IEEE24节点系统和FREEDM系统模型,验证所提方案的正确性和可行性。仿真结果表明,基于需求侧响应的微网能量管理策略,提高微网运行效益的同时,增加了联络线功率控制的灵活性,减小了分布式发电功率波动对上级电网产生的影响。也可为微网平稳接入公共电网运行和大规模推广提供参考。

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