Umehluko omkhulu phakathi kwemoto enikwa amandla amandla okuguqula amandla imvamisa kanye ne-motor enikwe amandla i-Power Frequency Sine Ngokuhlaziywa kochungechunge olune lwe-waveralform ye-valerage, i-wave e-waverform yamandla iqukethe ngaphezu kwe-2n Harmonics ngaphezu kwengxenye eyisisekelo yegagasi (igagasi lokulawula) (inani lamagagasi wokushintshanisa aqukethe igagasi ngalinye). Lapho i-spwm ac Converter ikhipha amandla futhi isebenza ku-motor, i-waveform yamanje emotweni izovela njengegagasi le-sine elinama-hambuconics aphezulu. I-harmonic yamanje izokhiqiza i-flux ye-magnetic flux edonsa kanzima kwi-asynchronous motor, kanye nengxenye ye-magnetic flux ephezulu kakhulu ku-flux enkulu, ukuze i-magnetic magnetic flux edonsa kanzima. Ingxenye edonsa kanzima kazibuthe ye-magnetic flux futhi yenza umjikelezo kazibuthe athambekele ekugcwalisekeni, okunemiphumela elandelayo ekusebenzeni kwemoto:
1.Ukukhiqizwa kwe-magnetic flux
Ukulahleka kwanda nokusebenza kahle kuyancipha. Ngoba ukuphuma kwamandla kagesi aguqukayo kuqukethe inani elikhulu le-harmonics ephakeme, lezi zinhlaka zizokhiqiza i-Copper kanye nokusetshenziswa kwensimbi, kunciphisa ukusebenza kahle okusebenzayo. Ngisho ne-SPWM Sinusoidal pulse Ububanzi ubuchwepheshe, obusetshenziswa kabanzi njengamanje, kuvimbela ama-harmonics aphansi kuphela futhi kunciphisa i-torque ye-motor, ngaleyo ndlela yandise uhla oluzinzile lwemoto ngejubane eliphansi. Futhi ama-harmonics aphezulu awanciphisi kuphela, kepha anda. Ngokuvamile, uma kuqhathaniswa nokuhlinzekwa kwamandla kagesi we-Power Frequency, ukusebenza kahle kuncishiswa ngo-1% kuya ku-3%, futhi isici samandla sehliselwa ngo-4% kuye kwayi-10%, ngakho-ke ukulahleka kwemoto ngaphansi kwe-Frequency Conversion Power Supply kuyinkinga enkulu.
b) khiqiza ukudlidliza nge-electromagnetic nomsindo. Ngenxa yokuba khona kochungechunge lwe-harmonics ephezulu, ukudlidliza nge-electromagnetic nomsindo nakho kuzokwenziwa. Unganciphisa kanjani ukudlidliza nomsindo sekuvele kuyinkinga ye-Sine Wave Vowed Motors. Ngemoto enikwe amandla yi-inverter, inkinga iba yinkimbinkimbi ngokwengeziwe ngenxa yohlobo olungeyona ye-sinusoidal lokuhlinzekwa kwamandla.
c) I-torque ephansi ephansi yenzeka ngejubane eliphansi. I-Harmonic Magnetomotive Force kanye ne-rotor harmonic synthentis yamanje, okuholela ekuguqukeni kwe-armonic electromagnetic torque, okushintshanise i-harmonic electronic torque, ngaleyo ndlela kuthinte ukusebenza okuzinzile kwejubane. Noma ngabe imodi yokuhlenga ye-SPWM isetshenziswa, uma kuqhathaniswa nokuhlinzekwa kwamandla kagesi we-Power Frequency, kuzobe kusekhona isilinganiso esithile se-harmonics ephansi, esizokhiqiza i-torque ephansi ngejubane eliphansi futhi kuthinte ukusebenza okuzinzile kwemoto ephansi.
I-2.Genetse I-Voltage kanye ne-Axial Voltage (yamanje) yokufakelwa
a) Ugesi we-Surge wenzeka. Lapho imoto isebenza, i-motortage esetshenzisiwe ivame ukubonwa kahle nge-surge Voltage eyenziwe lapho izingxenye eziku-Frequency Conversion device zihanjiswa, futhi kwesinye isikhathi i-Surge Voltage iphakeme, okuholela ekushayweni kagesi okuphindaphindiwe ku-coil kanye nomonakalo.
b) Khiqiza i-axial voltage kanye ne-axial yamanje. Isizukulwane se-shaft voltage ikakhulukazi ngenxa yokuba khona kokungalingani kwe-magnan maglance kanye ne-electrostatic ukungeniswa kwe-eftentication, okungeyona kabi kuma-motors ajwayelekile, kepha kugqame kakhulu kuma-motors anikwa amandla okuhlinzekwa amandla ashubile. Uma i-shaft voltage iphakeme kakhulu, isimo sokuthambisa sefilimu kawoyela phakathi komgodi nokuthathwa kwemali kuyolimala, futhi impilo yenkonzo yalowo mthelela izofinyezwa.
c) Ukuvimbela ukushisa kuthinta umphumela wokushisa ukushisa lapho usebenza ngejubane eliphansi. Ngenxa yohlu olukhulu lwejubane lomlawumeli we-frequency motor frequency motor, kuvame ukugijima ngejubane eliphansi ngokuvama okuphansi. Ngalesi sikhathi, ngoba ijubane liphansi kakhulu, umoya opholile onikezwe yindlela yokupholisa ye-FAF-FAFER esetshenziswa yimoto ejwayelekile akwanele, futhi umphumela wokuhlanza ukushisa uncishisiwe, futhi kufanele kusetshenziswe umphumela wokukhangisa.
Ithonya le-Mechanical lithambekele ekubumbeni, ngokuvamile, noma iyiphi idivaysi eyenziwe ngomshini izokhiqiza into evumayo. Kodwa-ke, i-motor egijima ngokuvama kwamandla aqhubekayo kanye nesivinini kufanele igweme ukuphikisana nemvamisa yemvelo yemishini yokuphendula imvamisa kagesi ka-50hz. Lapho imoto isebenza ngokuguqulwa imvamisa, imvamisa yokusebenza inobubanzi, futhi ingxenye ngayinye inemvamisa yayo yemvelo, okulula ukuyikwenza ngokuvama okuthile.
Isikhathi sePosi: Feb-25-2025