百万千瓦级超超临界汽轮发电机试验站拖动系统的方案选择

百万千瓦级超超临界汽轮发电机试验站拖动系统的选择既应满足最大容量等级汽轮发电机的拖动要求，同时也应尽量满足各种不同容量等级的汽轮发电机试验时的能源节约要求。拖动系统不仅要满足汽轮发电机的起动要求，同时也应保证汽轮发电机紧急时刻的安全刹车。拖动系统采用两台异步电动机联合运行方案，6MW异步电机由变频器供电，用于被试汽轮发电机的起动、制动，11MW异步电机挂网运行与6MW异步电机联合拖动，共同承担短路试验的负荷。

Choice of Driving System Scheme of Million Kilowatt Super Critical Turbine Generator Test Station

The choice of driving system of million kilowatt super critical turbine generator test station should meet driving requirements of turbine generator with maximum capacity and meet energy saving requirements of turbine generator with various capacities as far as possible. The driving system should not only meet the starting requirements of turbine generator, but also guarantee the safety shutdown of turbine generator in emergency. The driving system is composed of two integrally-operated asynchronous motors, a 6MW asynchronous motor fed by 6MW four-quadrant frequency converter was used for starting and braking of the tested turbine generator, and a 11MW asynchronous motor was in hanging net running. The two generators carried out the integral driving to bear the load of short circuit test.