永磁同步電機(jī)開題報(bào)告(編輯修改稿)
2025-03-12 06:22 本頁面
【文章內(nèi)容簡(jiǎn)介】 (1)Power supply voltage over at the square of voltage, the starting torque direct of synchronous motor is direct ratio the square of voltage, the low power supply of voltage make the starting torque of synchronous motor drooping significantly,which is lower than load troque, thus it can not start therefore raise this power supply voltage to enlarge the starting torque of motor. (2)The fault of motor if motor settle, the rotor winding had no short circuit, open circtui, open soldering and link bad etc or not. These faults will make the motor can not start to create starting of rating of intensity of magic field, make thus the motor can not the motor bearing has already been destoryed, the port cap has have no loose, if bearing failure port shroud loose, result in bearing39。s down sinking, mutually rub with stator iron core, result in thus motor39。s canning not start, settling the rotor fault can be shaken table with the low tension, gradually click to check to seek a fault condition and adopt homologous 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 kiowatt damage and replace in time. (3)The control device breaks kind of faults are mostly like the DC output voltage of the windings of magic belt to adjust not appropriate or don39。t output, resulting in the stator current of motor over big, cause the motor conduct electricity the run make or the losing of motor magic belt run check whether output voltage current and its waveform that the Li magic belt equips is normal at this time, the Rong breaks whether the machine Long breaks, the contact is circuit board plugin puts prison or alignment。Check loop resistance, put out whether crystal gate tube of mag burns out or brokes through. （ 4） Mechanical example， be dragged along a dynamic machinery to 8 block, result in motor incapability39。s starting, the rotor that moves motor in response to the pan at this time sees whether the slewing is vivid, machinery burden whether existence fault. synchronous motor incapability leads long into synchronousnization. Synchronous motor in mon use law of nonsynchronousnous starting, throw in Li magic belt when the motor rotor revolving speed hits synchronousnous revolving speed of 95%, make it leads long into synchronous motor incapability leads long into synchronousnous reason as follows: (1) The Li magic belt winding short the winding of Li magic belt, existence short circuit breaks down, as a result makes motor able to stabilize run time but incapability and lead long into synchronousnization while being lower than synchronousnous revolving to seek the Li magic belt winding short circuit, can open into low tension(about the 30 Vs) in the rotor derivation on line, put on the magic poles surface with a hand work steel saw, pursue inspection magic poles, if vibrating is violent, explain the magic poles to have no short circuit on steel saw of the magic poles39。 surface, if the vibrating of saw blade micro or don39。t flap, explain the magic poles short unloading the magic poles, check the fault to click, is shortcircuit degree, adopt local to mend or re round to make. (2) Power supply voltage over supply voltage over low, result in the strong Li link of the device of Li magic belt incapability working, make the motor incapability lead long into synchronousnization thus, the concrete way is to raise power supply voltage appropriately. (3)The fault of Li magic belt as throw Li over speedy(namely throw in Li magic belt, motor rotor revolving speed over low), will make the motor can not lead long into synchronization, should check to throw if the Li link exists fault at this Li magic belt device fault, the output39。s current is lower than a
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