Isifundo Ngethonya Le-Stator Electromagnetic Force Umsindo we-electromagnetic we-stator esemotweni uthinteka kakhulu yizici ezimbili, amandla ashukumisayo kagesi kanye nokusabela kwesakhiwo kanye nemisebe ye-acoustic ebangelwa amandla ahambisanayo avusa amadlingozi. Ukubuyekezwa kocwaningo.
USolwazi ZQZhu waseNyuvesi yaseSheffield, e-UK, njll. usebenzise indlela yokuhlaziya ukutadisha amandla kazibuthe kagesi kanye nomsindo we-motor stator ehlala unomphela, isifundo sethiyori samandla kazibuthe kagesi wezibuthe unomphela we-brushless motor, kanye nokudlidliza uzibuthe brushless DC motor ngezigxobo 10 kanye 9 Slots. Umsindo uyacwaningwa, ubudlelwano phakathi kwamandla kazibuthe kanye nobubanzi bezinyo le-stator kufundwa ngokwethiyori, futhi ubudlelwano phakathi kwe-torque ripple kanye nemiphumela yokuthuthukisa yokudlidliza nomsindo buyahlaziywa. USolwazi Tang Renyuan kanye no-Song Zhihuan base-Shenyang University of Technology banikeze indlela yokuhlaziya ephelele yokutadisha amandla kazibuthe kagesi kanye nokuvumelana kwawo kumotho kazibuthe unomphela, okunikeze ukusekelwa kwethiyori ukuze kwenziwe ucwaningo olwengeziwe mayelana nethiyori yomsindo wemoto kazibuthe unomphela.Umthombo womsindo wokudlidliza we-electromagnetic uhlaziywa uzungeze i-synchronous motor kamagnethi enikezwa amandla yi-sine wave kanye nesiguquli semvamisa, imvamisa yesici senkundla kazibuthe yegebe lomoya, amandla ajwayelekile ka-electromagnetic kanye nomsindo wokudlidliza kuyafundwa, kanye nesizathu setorque. i-ripple iyahlaziywa. I-torque pulsation ilingisiwe futhi yaqinisekiswa ngokuhlolwa kusetshenziswa i-Element, futhi ukuvunguza kwetorque ngaphansi kwezimo ezihlukene ze-slot-pole fit, kanye nemiphumela yobude begebe lomoya, i-pole arc coefficient, i-chamfered angle, nobubanzi be-slot ku-torque pulsation kwahlaziywa. . I-electromagnetic radial force kanye nemodeli yamandla e-tangential, kanye nokulingiswa kwe-modal okuhambisanayo kuyenziwa, amandla kazibuthe kanye nokuphendula komsindo wokudlidliza kuyahlaziywa esizindeni semvamisa futhi kuhlaziywe imodeli yemisebe ye-acoustic, bese ukulingisa okuhambisanayo nocwaningo lokuhlola luyenziwa. Kuboniswa ukuthi izindlela eziyinhloko ze-stator ye-magnetic motor unomphela ziboniswa esithombeni. 
Imodi eyinhloko yemoto kazibuthe unomphela
Ubuchwepheshe bokuthuthukisa isakhiwo somzimba wezimoto I-flux kazibuthe eyinhloko emotweni ingena esikhaleni somoya ngokukhazimula okukhulu, futhi ikhiqize amandla e-radial ku-stator ne-rotor, okubangela ukudlidliza kogesi kanye nomsindo.Ngesikhathi esifanayo, ikhiqiza i-tangential moment namandla e-axial, okubangela ukudlidliza kwe-tangential kanye nokudlidliza kwe-axial.Ezikhathini eziningi, njengamamotho a-asymmetric noma amamotho esigaba esisodwa, ukudlidliza kwe-tangential okukhiqizwa kukhulu kakhulu, futhi kulula ukubangela ukuzwakala kwezingxenye ezixhunywe kumotho, okuholela emsindweni okhipha imisebe.Ukuze ubale umsindo we-electromagnetic, futhi uhlaziye futhi ulawule le misindo, kuyadingeka ukwazi umthombo wayo, okuyigagasi lamandla elikhiqiza ukudlidliza nomsindo.Ngenxa yalesi sizathu, ukuhlaziywa kwamaza kagesi kagesi kwenziwa ngokuhlaziywa kwendawo kazibuthe ye-air-gap. Kucatshangwa ukuthi igagasi likazibuthe eliguquguqukayo elikhiqizwa i-stator , kanye negagasi lokuminyana kazibuthe
ekhiqizwa yi-rotor
, khona-ke igagasi labo elihlanganisiwe lamagnetic flux esikhaleni somoya lingavezwa ngale ndlela elandelayo:
Izinto ezifana ne-stator ne-rotor slotting, ukusatshalaliswa kokujikajika, ukuhlanekezela kwe-waveform yamanje, ukushintshashintsha kwe-air-gap permeance, ukushona kwe-rotor, kanye nokungalingani okufanayo konke kungaholela ekushintshashintsheni komshini kanye nokudlidliza. I-harmonics yesikhala, i-harmonics yesikhathi, i-harmonics ye-slot, i-eccentricity harmonics kanye nokugcwaliswa kazibuthe kwamandla we-magnetomotive konke kukhiqiza ama-harmonics aphezulu wamandla kanye ne-torque. Ikakhulukazi i-radial force wave ku-AC motor, izosebenza ku-stator ne-rotor ye-motor ngesikhathi esifanayo futhi ikhiqize ukuhlanekezela kwesekethe kazibuthe. I-stator-frame kanye ne-rotor-casing structure iwumthombo oyinhloko wemisebe yomsindo wemoto.Uma amandla e-radial eseduze noma elingana nemvamisa yemvelo yesistimu ye-stator-base, i-resonance izokwenzeka, okuzodala ukuwohloka kwesistimu ye-motor stator futhi kukhiqize ukudlidliza nomsindo we-acoustic. Ezimweni eziningi,
umsindo we-magnetostrictive obangelwa i-low-frequency 2f, amandla e-radial e-oda eliphezulu awanakwa (f imvamisa eyisisekelo yemoto, p iyinombolo yamapheya e-motor pole). Kodwa-ke, amandla e-radial adangwe yi-magnetostriction angafinyelela cishe ku-50% wamandla e-radial abangelwa inkambu kazibuthe yegebe lomoya. Enjini eshayelwa i-inverter, ngenxa yokuba khona kwama-harmonics esikhathi esiphezulu ku-curonic of stator windings yayo, ama-harmonics esikhathi azokhiqiza i-torque eyengeziwe yokudonsa, evame ukuba nkulu kune-torque edonsayo ekhiqizwa ama-harmonics emkhathini. enkulu.Ngaphezu kwalokho, i-voltage ripple ekhiqizwa iyunithi yokubuyisela iphinde idluliselwe kusiguquli ngomjikelezo omaphakathi, okuholela olunye uhlobo lwetorque edonsayo. Mayelana nomsindo we-electromagnetic we-magnetic synchronous motor unomphela, amandla kaMaxwell namandla azibuthe yizona zinto eziyinhloko ezidala ukudlidliza kwemoto nomsindo.
Izici ze-motor stator vibration Umsindo we-electromagnetic wemoto awuhlobene nje kuphela nemvamisa, ukuhleleka kanye nokuphakama kwegagasi lamandla kagesi elikhiqizwe yigebe lomoya kazibuthe, kodwa futhi lihlobene nemodi yemvelo yesakhiwo semoto.Umsindo we-electromagnetic ukhiqizwa ikakhulukazi ukudlidliza kwe-motor stator kanye ne-casing.Ngakho-ke, ukubikezela imvamisa yemvelo ye-stator ngokusebenzisa amafomula etiyetha noma ukulingisa kusengaphambili, kanye nokushaqisa imvamisa yamandla kazibuthe kagesi kanye nemvamisa yemvelo ye-stator, kuyindlela esebenzayo yokunciphisa umsindo we-electromagnetic. Lapho imvamisa ye-radial force wave yemoto ilingana noma isondele nemvamisa yemvelo ye-oda elithile le-stator, kuzobangelwa i-resonance.Ngalesi sikhathi, ngisho noma i-amplitude ye-radial force wave ingenkulu, izobangela ukudlidliza okukhulu kwe-stator, ngaleyo ndlela ikhiphe umsindo omkhulu we-electromagnetic.Ngomsindo wemoto, into ebaluleke kakhulu ukufunda izindlela zemvelo ngokudlidliza kwe-radial njengokuyinhloko, ukuhleleka kwe-axial kungu-zero, futhi ukwakheka kwemodi yendawo kungaphansi kwe-oda lesithupha, njengoba kuboniswe esithombeni. 
Ifomu lokudlidliza kwe-Stator
Lapho uhlaziya izici zokudlidliza zemoto, ngenxa yethonya elilinganiselwe lokuthambisa ukuma kwemodi kanye nemvamisa ye-motor stator, inganakwa.Ukuncishiswa kwesakhiwo ukuncishiswa kwamaleveli okudlidliza eduze nemvamisa ye-resonant ngokusebenzisa indlela yokuchitha amandla aphezulu, njengoba kubonisiwe, futhi kucatshangelwa kuphela noma eduze kwe-resonant frequency. 
umphumela wokudambisa
Ngemuva kokwengeza ama-windings ku-stator, ingaphezulu lama-windings ku-iron core slot liphathwa nge-varnish, iphepha le-insulating, i-varnish nocingo lwethusi linamathiselwe komunye nomunye, futhi iphepha lokuvikela ku-slot nalo linamathele eduze emazinyweni. yensimbi core.Ngakho-ke, i-in-slot winding inomnikelo othile wokuqina kumgogodla wensimbi futhi ayikwazi ukuphathwa njengenqwaba eyengeziwe.Lapho indlela yesici esinqunyelwe isetshenziselwa ukuhlaziywa, kuyadingeka ukuthola amapharamitha abonisa izakhiwo ezihlukahlukene zemishini ngokuya ngempahla yama-windings ku-cogging.Ngesikhathi sokuqaliswa kwenqubo, zama ukuqinisekisa ikhwalithi kapende wokucwilisa, ukhuphule ukungezwani kokugoqa ikhoyili, uthuthukise ukucinana kokuvunguza kanye nomgogodla wensimbi, ukhulise ukuqina kwesakhiwo semoto, ukhuphule imvamisa yemvelo ukuze ugweme. i-resonance, inciphisa i-amplitude yokudlidliza, futhi inciphise amagagasi kagesi. umsindo. Imvamisa yemvelo ye-stator ngemuva kokucindezelwa ku-casing ihlukile kulowo we-stator core eyodwa. I-casing ingathuthukisa kakhulu imvamisa eqinile yesakhiwo se-stator, ikakhulukazi imvamisa eqinile ye-oda eliphansi. Ukwanda kwamaphoyinti wokusebenza kwejubane elijikelezayo kwandisa ubunzima bokugwema ukuzwakala kwe-resonance ekwakhiweni kwemoto.Lapho uklama i-motor, ubunkimbinkimbi besakhiwo segobolondo kufanele buncishiswe, futhi imvamisa yemvelo yesakhiwo semoto ingakhuliswa ngokukhulisa ngokufanele ubukhulu begobolondo ukugwema ukuvela kwe-resonance.Ngaphezu kwalokho, kubaluleke kakhulu ukusetha ngokuphusile ubudlelwano bokuxhumana phakathi kwe-stator core ne-casing uma usebenzisa isilinganiso sesici esilinganiselwe.
Electromagnetic Analysis of Motors Njengenkomba ebalulekile yomklamo we-electromagnetic wemoto, ukuminyana kazibuthe ngokuvamile kungabonisa isimo sokusebenza semoto.Ngakho-ke, siqale sikhiphe futhi sihlole inani lokuminyana kazibuthe, eyokuqala iwukuqinisekisa ukunemba kwesifaniso, okwesibili ukunikeza isisekelo sokukhishwa okulandelayo kwamandla kazibuthe.Umdwebo wefu we-motor magnetic density uboniswa esithombeni esilandelayo. 
Kungabonakala kumephu yefu ukuthi ukuminyana kazibuthe endaweni yebhuloho lokuhlukanisa kazibuthe kuphakeme kakhulu kunephuzu lokuguquguquka kwejika le-BH le-stator ne-rotor core, elingadlala umphumela ongcono wokuhlukanisa kazibuthe. 
Ijika le-air gap flux density Khipha ukuminyana kazibuthe kwegebe lomoya wemoto kanye nendawo yezinyo, dweba ijika, futhi ungabona amanani athile wegebe lomoya wemoto ukuminyana kazibuthe kanye nokuminyana kazibuthe kwamazinyo. Ukuminyana kazibuthe kwezinyo kuyibanga elithile ukusuka endaweni ye-inflection yezinto, okucatshangwa ukuthi kubangelwa ukulahlekelwa kwensimbi ephezulu lapho injini iklanywe ngesivinini esikhulu.
Ukuhlaziywa Kwemodeli Yezimoto Ngokusekelwe kumodeli yesakhiwo se-motor kanye negridi, chaza okokusebenza, chaza umongo we-stator njengensimbi yesakhiwo, futhi uchaze i-casing njengento ye-aluminium, futhi wenze ukuhlaziya kwe-modal kuyo yonke injini.Imodi iyonke yemoto itholakala njengoba kukhonjisiwe esithombeni esingezansi. 
umumo wemodi ye-oda lokuqala 
umumo wemodi ye-oda lesibili 
umumo wemodi ye-oda lesithathu
Ukuhlaziywa kokudlidliza kwezimoto Impendulo ye-harmonic yemoto iyahlaziywa, futhi imiphumela yokusheshisa kokudlidliza ngesivinini esihlukahlukene iboniswa esithombeni esingezansi. 
Ukusheshisa kwe-radial okungu-1000Hz 
1500Hz ukusheshisa kwe-radial
2000Hz ukusheshisa kweradial
Isikhathi sokuthumela: Jun-13-2022