能自起动的抽水蓄能电站用双速同步发电─电动机，第一部分──原理

本文提出一种能自行起动的抽水蓄能电站用变极双速凸极同步发电─电动机，其机械结构和单速凸极同步电机一样，但转子极靴上不装阻尼笼，制造十分容易。作电动机运行时，不需要任何附加的起动装置，便能全电压直接起动，起动电流小，起动转矩大，容易牵入同步。该新型电机并有消除励磁绕组过电压，提高机组动态稳定性，显著改进作发电机运行时的电压波形等突出优点，用于抽水蓄能电站将获得巨大的经济效益和社会效益。

A Self-Starting Two-Speed Synchronous Generator-Motors for Pumped-storage Power Station,Pt.I-Concept

A self-starting pole-changing two-speed salient-pole synchronous generator-motors for pumped-storage power station is proposed in this paper. The mechanical structure of this new-type machine is quite similar to that of the ordinary single-speed salient-pole synchronous machines,but the damping cage in the pole-shoe of rotor is eliminated,hence much easy for manufacture. During the machine is used as motor,any additional starting device is needless,the motor can be started by direct-on-line,with the merit of small starting current,big starting torque and easysynchronization. The new-type machines also have the advantages: eliminating the danger of high voltage existence in the exciting windings,raising the dynamic stability of the machine and improving in a great measure the voltage wave-form during the machine is used as generator. Thus,it will be seen that the use of this new-type machine in pumped-storage power station can provide very large economic and social benefit.