By analyzing the inverter's problem during swith-on starting transient process, the system circuit which includes the buffer starting circuit, the soft starting circuit, over voltage protection and the reasonable starting project are presented in this paper.
Considering the large startup current of induction motors, this paper presents a fuzzy control soft starting system.
Two high voltage motors with significantly different power and load have to be started by the same set of starting device. Liquid soft starting devices for high voltage A.
Hydraulic storage braking and auxiliary soft starting of down belt conveyor have been simulated in laboratory, at the same time, have testified that this energy saving hydraulic system is available.
The results of the simulation proved that the soft starting control can effective reduce start current as high voltage induction motor start up directly and the motor could start up smoothly.
