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电网技术  2006 

潮流计算中风电场的等值

, PP. 53-56

Keywords: 风电场,稳态潮流,功率因数,等值方法

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Abstract:

潮流计算是风电场接入系统设计中的重要环节之一,为得到准确的潮流计算结果,以建立风电场稳态模型十分必要。以往风电场系统潮流计算都将风电场视为PQ节点,并认为风电场功率因数与单台机组功率因数相同。由于该方法未计入风电场内部集电系统的影响,当风电场规模较大时可能带来较大计算误差。作者通过实例将风电场集电系统分为使用架空线路和使用电缆两种情况,指出当风电场集电系统使用电缆时,风电场的等值功率因数与单台机组存在较大差别,潮流计算时应计及集电系统的作用。

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