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电网技术  2010 

基于模块化方法的交直流电力系统混合仿真

, PP. 41-46

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Abstract:

高压直流输电系统和柔性交流输电系统中大量大功率电力电子设备的应用,使反映不同物理特征的动态过程相互交织在一起。而在仿真过程中要求既能模拟大规模互联系统的机电暂态过程,又能模拟局部响应快速的电磁暂态过程。提出了一种基于模块化的交直流电力系统混合仿真算法。该算法采用分层分区网络分割,对系统中各种动态元件,包括HVDC和柔性交流输电等电力电子设备及其控制器进行模块化处理,应用双向迭代技术,将电磁暂态仿真程序嵌入到机电仿真程序中,以实现快速、准确模拟交直流混合系统暂态过程。在Kundur2区域系统和IEEE10机39节点系统上对该算法进行了仿真测试,并将其结果与EMTDC结果进行了比较,验证了其准确性和有效性。

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