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超级电容器在微网并网运行中的作用

Keywords: 光伏微网,超级电容器,频率特性,频谱分析,并网点功率

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Abstract:

为了解决微网中可再生能源的波动问题,以光伏发电、柴油发电机、蓄电池及超级电容器组成的微网为例,用频域方法分析了超级电容器在微网并网运行中的作用.基于给定的各分布式电源及其控制系统模型,从最大可控扰动频率、光伏发电最大准入容量以及全频段扰动抑制的角度,分析了超级电容器在微网运行中的作用.仿真和实证结果证明:超级电容器能提高微网中可控扰动频率,提高光伏发电准入容量,并对全频段扰动都有抑制作用.

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