抽水蓄能电站中机组水泵方向启动主要采用静止变频器(SFC)。变频启动过程中通过有选择地交替导通机桥的桥臂,周期性地向三相定子绕组中的两相注入电流,该电流所产生的旋转磁场与励磁电流产生的磁场相互作用,产生使转子旋转的拖动转矩。为确保拖动转向正确及产生的拖动转矩最大,正确地选择导通的桥臂,拖动过程中需确定转子的位置。本文结合琅琊山抽水蓄能电站变频器的实际应用情况介绍了变频启动时转子位置的计算方法。 Pumped storage power station unit pump direction start mainly with static frequency converter (SFC). During the frequency conversion starting process, the bridge arms of the bridge are selectively and alternately turned on to periodically inject current into the two phases in the three-phase stator windings. The rotating magnetic field generated by the current interacts with the magnetic field generated by the excitation current to generate a Rotor rotation drag torque. To ensure that the drag is correct and the resulting drag torque is maximized, the conductive arm is properly selected and the position of the rotor is determined during the drag. In this paper, Langyashan Pumped Storage Power Station inverter practical application of the situation introduced when the frequency converter rotor position calculation method.