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电网技术  2015 

基于伪广义Hamilton理论的电力系统时滞反馈励磁控制

DOI: 10.13335/j.1000-3673.pst.2015.08.026, PP. 2238-2244

Keywords: 时滞,伪广义Hamilton系统,转移电导,励磁控制,电力系统稳定

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Abstract:

广域测量信号的使用已使得电力系统成为时滞系统,反馈控制信号的时滞性对系统稳定性具有重要影响。为此,利用Pade近似方法,将反馈控制的时滞环节转换成微分方程,将显含的时滞环节隐含在系统的动态微分模型中,研究计及反馈时滞和转移电导的多机电力系统,将其表示成伪广义耗散Hamilton系统形式。利用伪广义耗散Hamilton系统理论和控制方法,结合电力系统的实际运行特点,得到计及广域反馈信号传输时滞的电力系统励磁控制律。IEEE9节点系统的仿真结果表明,在计及时滞影响下所设计的发电机励磁控制器具有良好的控制效果。

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