Start and Control for Large Brushless Synchronous Motor

Start-up and control schemes are very important for the large brushless synchronous motor to run safely and stably.Begin with the start-up calculation of imported 8 062 kW synchronous motor in hydrocracker unit in the new district of Dalian Petrochemical Company,the one drives one and one drives two soft-start plans are introduced in detail.At the same time,because the protection,control,excitation and the soft-start system must be both independent and coordinated of each other,some key and difficult problems are analyzed and put forward to solutions.The system is running in Dalian Petrochemical Corporation effectively,it has certain guiding sense to the large-scale synchronized motor group's starting and controlling.