I i-low-voltage variable frequency motors iveliswe nguLT SIMO Motorbanezi mpawu zilandelayo
- Uyilo lwe-Electromagnetic: Kwiimotor eziqhelekileyo ze-asynchronous, iiparamitha eziphambili zokusebenza eziqwalaselwayo ngexesha lokuyilwa ngokutsha kumthamo wokugcwala, ukuqala ukusebenza, ukusebenza kakuhle kunye nomba wamandla. Kwiimoto eziguquguqukayo ezijikelezayo, ekubeni i-slip slip i-critical proportional inversely to frequency power, inokuqalwa ngokuthe ngqo xa isiliphu esibalulekileyo sisondele kwi-1. Ngoko ke, umthamo ogqithisiweyo kunye nokuqaliswa kokusebenza akufuneki ukuba kuthathelwe ingqalelo kakhulu, kwaye umba obalulekileyo oza kusonjululwa yindlela yokuphucula ukulungelelaniswa kwemoto kwi-non-sinusoidal power supply. Iindlela ngokubanzi zezi zilandelayo:
1) Ukunciphisa i-stator kunye ne-rotor ukumelana kangangoko kunokwenzeka.
Ukunciphisa ukuxhathisa kwe-stator kunokunciphisa ilahleko yobhedu esisiseko ukuhlawulela ukunyuka kokulahleka kobhedu okubangelwa yi-harmonics ephezulu.
2) Ukuze ucinezele i-harmonics ye-high-order yangoku, i-inductance ye-motor kufuneka inyuswe ngokufanelekileyo. Nangona kunjalo, okukhona i-rotor slot ivuza ukusabela okukhulu, isiphumo esikhulu solusu, kunye nokulahleka okuphezulu kobhedu lwe-harmonic. Ke ngoko, ubungakanani bokusabela kokuvuza kwemoto kufuneka kuthathelwe ingqalelo ingqiqo yokudibana kokuphazamiseka ngaphakathi kulo lonke uluhlu lolawulo lwesantya.
3) Isekethe yemagnethi ephambili yemotor frequency frequency yenzelwe ukuba ingaxutywanga. Okokuqala, kucatshangelwa ukuba i-harmonics ye-high-order iya kugxininisa ukugcwala kwe-circuit magnetic. Okwesibini, kucingwa ukuba kwi-frequency ephantsi, i-voltage ephumayo ye-inverter kufuneka inyuswe ngokufanelekileyo ukuze kwandiswe i-torque yokuphuma.
- Uyilo lwesakhiwo
Xa uyila isakhiwo, eyona nto ibalulekileyo impembelelo yeempawu zonikezelo lwamandla angeyo-sinusoidal kwisakhiwo se-insulation, i-vibration, indlela yokupholisa ingxolo kunye neminye imiba ye-motor frequency variable. Ngokubanzi, le miba ilandelayo kufuneka inikwe ingqwalasela:
I-1) Inqanaba le-insulation, ngokubanzi inqanaba lika-F okanye ngaphezulu, ukuqinisa ukugquma emhlabeni kunye namandla okugquma kocingo olujikayo, kwaye ngokukodwa ukuqwalasela ukukwazi kwe-insulation ukumelana nombane we-impulse.
2) Kubaukungcangcazela kunye neengxaki zengxolo yemoto, ukuqina kwamacandelo eenjini kunye nayo yonke into kufuneka iqwalaselwe ngokupheleleyo, kwaye i-frequency yayo yendalo kufuneka inyuswe kangangoko kunokwenzeka ukuphepha i-resonance ngamaza amandla.
3) Indlela yokupholisa: Ngokuqhelekileyo, ukupholisa umoya ngenkani kwamkelwa, oko kukuthi, eyona nto iphambili yokupholisa i-motor fan iqhutywa yinjini ezimeleyo.
4) Amanyathelo okuthintela i-shaft yangoku, ukuthwala imilinganiselo yokugquma kufuneka yamkelwe kwiimotor ezinomthamo ongaphezulu kwe-160KW. Ngokukodwa, kulula ukuvelisa i-asymmetry yesekethe yemagnethi kunye ne-shaft yangoku. Xa i-current eveliswa ngamanye amacandelo e-high-frequency idibaniswe, i-shaft current iya kwanda kakhulu, ibangele umonakalo wokuthwala, ngoko ke amanyathelo okukhusela athathwa ngokubanzi.
5) Kubaamandla aguquguqukayo rhoqo motor frequencys, xa isantya sidlula i-3000 / min, igrisi ekhethekileyo yokumelana nobushushu kufuneka isetyenziswe ukuhlawulela ukunyuka kweqondo lokushisa lokuthwala.
Iimotor eziguquguqukayo eziguquguqukayo zinokusebenza ixesha elide kuluhlu lweefrikhwensi eziguquguqukayo ze-0.1HZ--130HZ.
Iimoto eziqhelekileyo zinokubaleka ixesha elide kuluhlu lwe: 20--65hz kwiipali ezi-2.
25--75hz kwiipali ezi-4.
30--85hz kwiipali ezi-6.
35--100hz kwiipali ezisi-8.