【摘要】 本文在开发使用ＢＰＡ—ＥＭＴＰ的基础上，研究了发电厂送出线上采用高速重合闸对汽轮发电组轴系扭振和电力系统运行稳定性的影响．指出对于永久性故障的重合可能导致轴系迅力矩的放大和发电机摇摆角的增大，且与重合时刻有关．文中同时提出了对三相重合闸分相重合的方法．采用这种方法，当重合于永久故障时，可有效降低轴系扭力矩，并能改善机组与电网间的运行稳定性．更多还原

【Abstract】 In this paper, Electromagnetic Transient Program (EMTP) is used to study theeffects of High-speed Reclosure (HSR) adopted by transmission lines directly connected with generators on the shaft torsional torques of turbine-generator and thetransient stability of power system. It can be seen from the simulations that shalltorsional torques may be aggravated and generator load angle may be enlargedwhen reclosing to permanent faults. Furthermore, the reclosing tim has significant effects on them. This paper also presents a sequential reclosure method forthree-pole reclosing. When reclosing to permanent faults, the proposed method cangreatly reduce shall torsional torque and improve the transient stability of powersystem.更多还原