Vy. Charonov et al., Some features of asynchronous frequency adjustable electric drive structure selection for oil producing equipment, NEFTY KHOZY, (11), 1999, pp. 28-31
Reviewed are technical properties of two types of frequency adjustable elec
tric drives with asynchronous electric motors: controlled by voltage and fr
equency according to U/f=const law and by frequency-current regulation. Pre
sented are functional lay-outs of these options. Recommendations on applica
tion of concrete electric drive option for oil producing equipment are prop
osed.