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IEEE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。
Subsynchronous oscillation （SSO） is likely to cause the unstable torsion vibration of shafting of generator set, and even damage the generator shaft, so as to endanger the safe operation of power system. Based on the simulation platform of EMTDC/ PSCAD, static var compensator is used to suppress subsynchronous oscillation by using these two control strategies, such as the extra voltage control and model separation, and the subsynchronous oscillation effect of SVC suppressing IEEE first standard model under the two kinds of control strategies is analyzed and compared. It is shown that both two kinds of control strategy could suppress subsynchronous oscillation, but modal separation is better on the whole.
出处
《陕西电力》
2013年第7期45-50,共6页
Shanxi Electric Power
基金
国家高技术研究发展计划(863计划:2011AA05A119)
中央高校基本科研业务费专项基金(武汉大学2012207020207)
