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电网技术  2010 

低碳经济对电网负荷率特性的影响分析

, PP. 100-104

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Abstract:

为研究低碳经济的发展给电网带来的挑战,从作为电力负荷特性重要指标的电网负荷率的角度分析其与低碳经济的关系。对近年来中国电网负荷率的变化情况进行了统计分析,讨论了储能技术应用、风电、光伏发电和水电等可再生能源大规模并网和电动汽车、蓄热蓄冷空调等低碳用户规模化发展对电网负荷率的影响。以北京电网为例,应用日负荷曲线叠加的方法,定量分析了蓄冷空调和电动汽车的规模化应用对电网负荷率的影响情况。分析表明,调度的方式、低碳用户发展的程度、不同的电动汽车充电时间对负荷率的影响不同。提出了各区域电网相互协作,提高电网自身容量,合理安排电动汽车充电时间的建议。

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