摘要:次同步振荡(sso)问题有可能造成发电机组轴系不稳定扭振甚至损坏发电机转轴,从而危及电力系统安全运行。基于EMTDC/PSCAD仿真平台,运用静止无功补偿器(svc)来抑制次同步振荡,采用附加电压控制以及模态分离控制这2种控制策略。对这两种控制策略下的SVc抑制EEEI第一标准模型的次同步振荡效果进行了分析和比较。仿真表明2种控制策略均能抑制次同步振荡,总体而言,模态分离法较好。
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