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电网技术  2012 

基于留数的STATCOM附加阻尼鲁棒控制

, PP. 131-135

Keywords: 留数,静止同步补偿器,低频振荡,鲁棒控制

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Abstract:

实际系统运行方式多样,针对单个运行方式配置参数的静止同步补偿器附加阻尼控制可能在系统参数变化后抑制低频振荡效果不佳。文章采用总体最小二乘法旋转不变技术的信号参数估计法辨识系统传递函数及其留数,考虑运行方式的变化会导致区域间振荡模式对应的留数变化,综合不同运行方式下的留数信息,提出基于留数的静止同步补偿器附加阻尼鲁棒控制方法,改善控制器对运行方式的适应性。仿真结果表明,相对于传统方法,设计的静止同步补偿器鲁棒控制器能够稳定有效地抑制低频振荡,对系统运行方式变化的适应能力更强。

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