【摘要】 采用TCSC的采样 数据模型 ,可方便地分析较大规模电力系统在不同TCSC控制策略下的动态特性。该模型考虑了晶闸管开关的非线性和时变因素 ,在汽轮发电机组轴系频率范围内足够精确。通过分析IEEE次同步振荡用的第一基准模型和伊敏 大庆 5 0 0kV带可控串联补偿的输电系统 ,用定量计算从理论上说明了只有当晶闸管导通角在一定范围内或大于一定的数值时 ,才能有效地抑制次同步振荡。更多还原

【Abstract】 The paper presents a sample data model of TCSC which can be applied to large scale power systems with TCSC using various complex control strategies. The model takes account of the nonlinear and time varying dynamics of switch devices and is valid in the frequency range of generator shaft. The IEEE first benchmark system and Yimin Fengtun 500kV transmission system with TCSC are analyzed. The results prove that the SSR can not always be well damped by TCSC unless within proper range of conduction angle of thyristors.更多还原