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基于序列运算理论的孤立微电网经济运行模型

, PP. 52-59

Keywords: 微电网,经济运行模型,机会约束规划,序列运算理论

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Abstract:

针对风力和光伏发电出力的随机性,提出一种基于机会约束规划的孤立微电网经济运行模型。鉴于部分机会约束难以转化成确定性约束,根据序列运算理论,利用可再生能源出力的概率分布生成概率性序列,使模型中的机会约束转化成确定性约束的等价类。因此模型具有混合整数规划的线性结构,可兼容如TOMLAB类的优化工具求解。仿真结果表明,与随机模拟求解相比,该方法具有计算速度快且结果稳定的优势。另外,为了考察概率性序列的合理性,还讨论了不同离散化步长对计算结果的影响,并进一步验证了所提出方法的有效性。

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