永磁同步电动机直接转矩制系统-外文翻译.doc

Always magnetic belt synchro motor direct torque control system 0 - preface Synchro motor because of having power factor higher -, run - timeefficiency higher -, stability good, the revolving speed Heng settles to wait a merit, is extensively been applied to industrial production amid.The startingfault that acquaints with synchro motor, and debugging in time, all have important meaning to the motor and the production systemses.By wayof energy in time, accurate debugging and transaction fault, have tovsthefamiliar fault progress of the synchro motor in detail analytical! 1 - Familiar fault 1.1- The synchro motor after switching on electricity the incapability starts The synchro motor after starting the incapability run - time generally has the reason of severals as follows: Power supply voltage over low.Because at the square of voltage, the starting torque direct proportion of synchro motors the voltage of power supply over make low the starting torque of synchro motor significantly the droop is lower than load troque, can not start thus and want to raise vs this power supply voltage to enlarge the starting torque of dynamo. The fault of motor.Check motor settle, the rotor winding had no short circuit, open circtui, open soldering and link bad etc. fault, these the faults will make the dynamo can not start to create starting of rating of intensity of magnetic field, make thus the dynamo can not start;Checking the motor bearing has already had no failure, the port cap has have no loose, if bearing failure port shroud loose, result in bearings down sinking, mutually rub with stator iron core, result in thus dynamos canning not start, vs settle the rotor fault can be shaken table with the low tension, gradually click to check to seek a fault condition and adopt homologous treatment;The countersgaft accepts and carries to shroud a loose condition and all wants a pan car before driving each time and sees motor rotor whether slewing is vivid, if bearing or shaft kiowa