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含风电微型电网电压稳定性分析及控制技术

, PP. 56-62

Keywords: 微型电网,储能,异步风力发电机,电压稳定性

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Abstract:

异步风力发电机作为微型电网的重要分布式电源,其工作状况将影响系统的运行以及电压稳定性。本文研究了异步风力发电机的转速-电压特性以及功率-电压特性,分析了其投切容量、位置分布、运行状况等因素对微型电网电压稳定性的影响。提出两种基于储能的电压稳定性控制策略,分析并对比了其对系统电压的改善作用。研究结果表明,出现阵风、渐变风等风速扰动时,储能能够有效抑制系统电压波动,确保微型电网的稳定运行;出现线路故障,故障清除时储能可以加快系统电压的恢复。

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