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电网技术  2009 

基于动态系数法的互联电网K系数调整策略

, PP. 84-89

Keywords: 动态系数法,自动发电控制(AGC),频率偏差系数

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Abstract:

自动发电控制(automaticgenerationcontrol,AGC)是控制系统频率和区域间联络线交换功率按计划运行的重要手段。频率偏差系数K对于控制系统稳定和频率恢复起着重要作用。频率偏差较小时,设置区域的最理想频率偏差系数与本区域的自然频率相等,但当区域受到较大扰动时可能不利于系统频率恢复。文中在动态系数法的基础上,综合考虑区域之间AGC配合,确定了在各种扰动发生情况下区域频率偏差系数的方法。算例分析表明,采用该方法有助于提高频率质量,减少无谓控制,改善系统的频率控制特性。

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