新型大容量调相机在特高压直流输电中的应用研究

Research of New Large-capacity Synchronous Condenser in UHVDC Transmission Application

结合特高压直流输电大规模应用带来的无功动态调节问题,通过调相机与其他无功装置的优缺点比较,对调相机运行特性仿真分析,以及一起受端换流站调相机应用效果分析,证明其优良的次暂态、暂态、稳态特性适合在直流输电系统发生低电压及过电压故障时,发挥其逆向无功调节特性,对于快速恢复故障作用明显。

Combined with the problem of reactive power regulation brought by large-scale application of UHVDC transmission,the reason for developing a new large-capacity condensers is introduced.Comparing the advantages and disadvantage of condenser with other reactive devices,and the effect analysis of the condenser application in receiving station is taken.Through the analysis of the operating characteristics of the condensers,it is proved that its excellent subtransient,transient,and steady-state characteristics are suitable for the reactive reverse power regulation characteristics of DC transmission system when low voltage or over voltage faults occur.