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电网技术  2009 

基于开关控制的电力系统广域阻尼控制器

, PP. 132-136

Keywords: 广域控制,开关控制,电力系统稳定,通信时滞,广域测量系统(WAMS)

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Abstract:

研究了广域阻尼控制器以改善互联电力系统的阻尼和动态稳定性,提出了发电机励磁系统的广域控制算法。该算法用开关控制实现来自远方发电机的转速反馈控制,且考虑了通信时滞。该算法能减小通信时滞的不利影响。励磁系统的广域阻尼控制器以该算法为基础且包含超前–滞后网络。通过4机2区域系统的三相短路故障的数字仿真,测试了该广域阻尼控制器的性能。仿真结果表明,该广域阻尼控制器能改善互联电力系统的动态稳定性。

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