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电网技术  2015 

考虑功率调整优先策略的微网动态经济调度

DOI: 10.13335/j.1000-3673.pst.2015.08.017, PP. 2173-2179

Keywords: 功率调整,机会约束,可靠性,微网,动态经济调度

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Abstract:

针对微网中分布式电源及负荷的波动性、间歇性特征,采用机会约束建立了反映可靠性和经济性风险置信水平的动态经济调度模型。模型中的经济性同时考虑了微网中可控机组发电成本和不确定性因素导致的高估/低估风险费用。其中高估风险费用采用了3种功率调整优先策略电网优先的功率调整策略、微网内部机组优先的功率调整策略、混合优先功率调整策略。系统运行的可靠性通过一定风险置信水平下电能供求关系的机会约束来刻画。算例结果验证了所建模型的有效性。

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