基于矩阵束算法的次同步阻尼控制器设计Design of Sub-synchronous Damping Controller Based on Matrix Pencil Algorithm
陈德伟,李兴源
摘要(Abstract):
附加次同步阻尼控制器SSDC(sub-synchronous damping controlle)r是解决由直流输电引起次同步振荡的一种有效措施。振荡模态参数的提取对于SSDC的设计有重要作用。传统的Prony法在运算效率和抗噪声能力方面都比较差,文中发展了电力系统模态辨识的一种新方法-矩阵束算法MP(matrix pencil algorithm),并将其用于交直流混合输电系统的次同步振荡模态分析,在此基础上结合极点配置方法设计出抑制次同步振荡的附加直流阻尼控制器。PSCAD仿真结果验证了该阻尼控制器的有效性。
关键词(KeyWords): 附加次同步阻尼控制器;次同步振荡;矩阵束
基金项目(Foundation): 国家自然科学基金重点项目(51037003);; 四川省科技厅基础应用计划(2010jy0018);; 国家电网公司和四川电力公司项目
作者(Author): 陈德伟,李兴源
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