Ilahleko yenqanaba lesithathu lemoto ye-AC inokwahlulwa ibe yilahleko yobhedu, ilahleko yealuminiyam, ilahleko yentsimbi, ilahleko elahlekileyo, kunye nokulahleka ngumoya. Ezokuqala ezine zilahleko zokufudumeza, kwaye isixa sibizwa ngokuba yilahleko yokufudumeza ngokupheleleyo.Ubungakanani belahleko yobhedu, ilahleko yealuminiyam, ilahleko yentsimbi kunye nokulahleka okulahlekileyo kwilahleko yobushushu iyonke ichazwa xa umbane utshintsha ukusuka kuncinci ukuya kukhulu.Ngomzekelo, nangona umlinganiselo wokusetyenziswa kobhedu kunye nokusetyenziswa kwe-aluminiyam kwilahleko yobushushu iyonke iyaguquguquka, iyancipha ngokubanzi ukusuka kwinkulu ukuya kwencinci, ibonisa ukuhla.Ngokuchasene noko, ilahleko yentsimbi kunye nelahleko elahlekileyo, nangona kukho ukuguquguquka, ngokuqhelekileyo ukunyuka ukusuka kwincinci ukuya enkulu, kubonisa ukunyuka okuphezulu.Xa amandla amakhulu ngokwaneleyo, ilahleko yentsimbi elahlekileyo idlula ilahleko yobhedu.Ngamanye amaxesha ilahleko elahlekileyo idlula ukulahleka kobhedu kunye nokulahleka kwentsimbi kwaye ibe yinto yokuqala yokulahleka kobushushu.Ukuhlalutya kwakhona i-Y2 motor kunye nokujonga utshintsho olulinganayo lweelahleko ezahlukeneyo kwilahleko iyonke kubonisa imithetho efanayo.Ukuqaphela le migaqo ingentla, kugqitywa ukuba iinjini zamandla ahlukeneyo zigxininisa ngokuhlukileyo ekunciphiseni ukunyuka kweqondo lokushisa kunye nokulahlekelwa kobushushu.Kwiimoto ezincinci, ukulahleka kobhedu kufuneka kuncitshiswe kuqala; kwiinjini zamandla aphakathi kunye aphezulu, ilahleko yentsimbi kufuneka igxininise ekunciphiseni ilahleko elahlekileyo.Imbono yokuba "ilahleko elahlekileyo incinci kakhulu kunokulahleka kobhedu kunye nokulahleka kwentsimbi" ijonge kwicala elinye.Kugxininiswa ngokukodwa ukuba amandla amakhulu eenjini, ingqwalasela engakumbi kufuneka ihlawulwe ekunciphiseni ilahleko elahlekileyo.Iimotor ezinomthamo ophakathi kunye nomkhulu zisebenzisa i-sinusoidal windings ukunciphisa amandla e-harmonic magnetic kunye nelahleko elahlekileyo, kwaye umphumo uhlala ulungile kakhulu.Amanyathelo ahlukeneyo okunciphisa ilahleko elahlekileyo ngokuqhelekileyo ayifuni ukwandisa izinto ezisebenzayo.
Intshayelelo
Ilahleko yenqanaba lesithathu lemoto ye-AC inokwahlulwa ibe yilahleko yobhedu iPCu, i-aluminium ilahleko iPAl, ilahleko yentsimbi iPFe, ilahleko elahlekileyo yePs, ukunxiba umoya iPfw, ezine zokuqala kukulahleka kokufudumeza, isixa esibizwa ngokuba yiPQ yokulahleka kokufudumeza. apho ilahleko elahlekileyo Iyimbangela yazo zonke iilahleko ngaphandle kokulahleka kobhedu i-PCu, i-aluminium ilahleko ye-PAl, ilahleko yentsimbi ye-PFe, kunye nokugqoka umoya we-Pfw, kubandakanywa amandla amagnetic e-harmonic, ukuvuza kwemagnethi, kunye ne-lateral current ye-chute.
Ngenxa yobunzima ekubaleni ilahleko elahlekileyo kunye nobunzima bovavanyo, amazwe amaninzi achaza ukuba ilahleko elahlekileyo ibalwa njenge-0.5% yegalelo lamandla emoto, eyenza lula ukuphikisana.Nangona kunjalo, eli xabiso linzima kakhulu, kunye noyilo oluhlukeneyo kunye neenkqubo ezahlukeneyo zihlala zihluke kakhulu, ezifihla ukuchasana kwaye azikwazi ukubonisa ngokwenene iimeko zokusebenza zangempela zemoto.Kungekudala, ukuchithwa kwe-stray okulinganisiweyo kuye kwaziwa kakhulu.Kwixesha lokudityaniswa koqoqosho lwehlabathi, yinto eqhelekileyo ukuba nembono ethile ejonge phambili indlela yokudibanisa nemigangatho yamazwe ngamazwe.
Kweli phepha, inqanaba lesithathu le-AC motor liyafundwa. Xa amandla etshintsha ukusuka kumncinci ukuya kumakhulu, umlinganiselo welahleko yethusi yePCu, i-aluminium ilahleko ye-PAl, ilahleko yentsimbi ye-PFe, kunye nelahleko elahlekileyo yePs ukuya kwilahleko yobushushu obupheleleyo utshintsho lwe-PQ, kunye neendlela zokuthintela zifunyenwe. Yila kwaye wenze ingqiqo ngakumbi kwaye ingcono.
1. Uhlalutyo lokulahleka kwemoto
1.1 Qala ngokuqwalasela umzekelo.Umzi-mveliso uthumela ngaphandle iimveliso ze-E zeenjini zombane, kwaye iimeko zobugcisa zichaza ilahleko elinganiselweyo elahlekileyo.Ukuthelekisa lula, masiqale sijonge iimotor ezinepoleni ezi-2, ezinamandla ukusuka ku-0.75kW ukuya kuma-315kW.Ngokweziphumo zovavanyo, umlinganiselo wokulahleka kobhedu i-PCu, i-aluminium ilahleko ye-PAl, ilahleko yentsimbi ye-PFe, kunye nokulahleka kwe-Ps kwi-PQ yokulahleka kobushushu iyonke ibalwa, njengoko kuboniswe kuMfanekiso 1.Ulungelelwaniso kumzobo ngumlinganiselo welahleko ezahlukeneyo zokufudumeza ukuya kwilahleko yokufudumeza iyonke (%), i-abscissa ngamandla emoto (kW), umgca ophukileyo kunye nedayimani ngumlinganiselo wokusetyenziswa kobhedu, umgca ophukileyo kunye nezikwere umlinganiselo wokusetyenziswa kwe-aluminium, kunye nomgca ophukileyo wenxantathu yintsimbi yokulahlekelwa kwentsimbi, kwaye umgca ophukileyo kunye nomnqamlezo ngumlinganiselo welahleko elahlekileyo.
Umzobo 1. Itshathi yomgca eyaphukileyo yomlinganiselo wokusetyenziswa kobhedu, ukusetyenziswa kwe-aluminium, ukusetyenziswa kwentsimbi, ukuchithwa okulahlekileyo kunye nokulahlekelwa kokufudumeza ngokupheleleyo kwe-E series 2-pole motors.
(1) Xa amandla emoto etshintsha ukusuka kwincinci ukuya enkulu, nangona umlinganiselo wokusetyenziswa kobhedu uguquguquka, utshintsha ngokubanzi ukusuka kwinkulu ukuya kwincinci, ebonisa ukuhla. I-0.75kW kunye ne-1.1kW i-akhawunti malunga ne-50%, ngelixa i-250kW kunye ne-315kW ingaphantsi kwe-Umlinganiselo we-20% yokusetyenziswa kwe-aluminium nayo ishintshile ukusuka kwinkulu ukuya kwincinci ngokubanzi, ebonisa ukuhla, kodwa utshintsho alukhulu.
(2) Ukusuka kwincinci ukuya kumandla amakhulu wenjini, ubungakanani belahleko yentsimbi iyatshintsha, nangona kukho ukuguquguquka, ngokuqhelekileyo inyuka ukusuka kwincinci ukuya enkulu, ibonisa ukunyuka.I-0.75kW ~ 2.2kW imalunga ne-15%, kwaye xa ingaphezulu kwe-90kW, idlula i-30%, inkulu kunokusebenzisa ubhedu.
3I-0.75kW ~ 1.5kW imalunga ne-10%, ngelixa i-110kW isondele ekusebenziseni ubhedu. Kwiinkcukacha ezingaphezu kwe-132kW, uninzi lweelahleko ezilahlekileyo zidlula ukusetyenziswa kobhedu.Ilahleko elahlekileyo yama-250kW kunye nama-315kW idlula ilahleko yobhedu nentsimbi, kwaye ibe ngumba wokuqala ekulahlekeni kobushushu.
I-4-pole motor (umzobo womgca ushiyiwe).Ilahleko yentsimbi engaphezulu kwe-110kW inkulu kunelahleko yobhedu, kwaye ilahleko elahlekileyo engama-250kW nama-315kW ingaphezulu kokulahleka kobhedu kunye nokulahleka kwentsimbi, ibe ngumba wokuqala ekulahlekeni kobushushu.Isixa sokusetyenziswa kobhedu kunye nokusetyenziswa kwe-aluminium kolu luhlu lwe-2-6 yeemoto zepali, i-motor encinci yenza malunga ne-65% ukuya kwi-84% yelahleko yobushushu iyonke, ngelixa i-motor enkulu iyancipha ukuya kuma-35% ukuya kwi-50%, ngelixa intsimbi. ukusetyenziswa okuchaseneyo, i-akhawunti yemoto encinci malunga ne-65% ukuya kwi-84% yokulahlekelwa kobushushu. Iyonke ilahleko yobushushu yi-10% ukuya kwi-25%, ngelixa i-motor enkulu ikhula malunga ne-26% ukuya kwi-38%.Ilahleko elahlekileyo, iimoto ezincinci zithatha malunga ne-6% ukuya kwi-15%, ngelixa iinjini ezinkulu zinyuka ukuya kuma-21% ukuya kuma-35%.Xa amandla amakhulu ngokwaneleyo, ilahleko yentsimbi elahlekileyo idlula ilahleko yobhedu.Ngamanye amaxesha ilahleko elahlekileyo idlula ukulahleka kobhedu kunye nokulahleka kwentsimbi, ibe yinto yokuqala ekulahlekeni kobushushu.
I-1.2 R series 2-pole motor, ukulinganisa ilahleko elahlekileyo
Ngokweziphumo zovavanyo, umlinganiselo wokulahleka kobhedu, ilahleko yentsimbi, ilahleko elahlekileyo, njl.njl kwi-PQ yokulahleka kobushushu iyonke ifunyenwe.Umzobo 2 ubonisa utshintsho olulungelelanisiweyo kumandla emoto ukulahleka kobhedu.Ulungelelwaniso kumzobo ngumlinganiselo wokulahleka kobhedu olulahlekileyo kwilahleko yobushushu bubonke (%), i-abscissa ngamandla emoto (kW), umgca oqhekekileyo kunye nedayimani ngumlinganiselo wokulahleka kobhedu, kwaye umgca oqhekekileyo onezikwere. umlinganiselo weelahleko ezilahlekileyo .Umzobo we-2 ubonisa ngokucacileyo ukuba ngokubanzi, amandla amakhulu eenjini, ubukhulu becala lokulahleka kwelahleko ekulahlekeni kobushushu obupheleleyo, obunyukayo.Isazobe sesi-2 sikwabonisa ukuba kwiisayizi ezingaphezu kwe-150kW, ilahleko elahlekileyo idlula ilahleko yobhedu.Kukho ubungakanani obuninzi beenjini, kwaye ilahleko elahlekileyo ide ibe yi-1.5 ukuya kwi-1.7 ilahleko yobhedu.
Amandla olu luhlu lweemotor ezinepoleni ezi-2 ukusuka ku-22kW ukuya kuma-450kW. Umlinganiselo welahleko elinganisiweyo yelahleko kwi-PQ iye yanda ukusuka ngaphantsi kwe-20% ukuya phantse kwi-40%, kwaye uluhlu lotshintsho lukhulu kakhulu.Ukuba ibonakaliswe ngomlinganiselo welahleko elahlekileyo elinganisiweyo kumandla aphumayo alinganisiweyo, malunga (1.1 ~ 1.3)%; ukuba ibonakaliswe ngomlinganiselo welahleko elinganisiweyo yelahleko kumandla egalelo, imalunga (1.0 ~ 1.2)%, ezimbini zokugqibela Umlinganiselo wentetho awutshintshi kakhulu, kwaye kunzima ukubona utshintsho olulungelelanisiweyo lolahleko. ilahleko kwi-PQ.Ke ngoko, ukujonga ilahleko yokufudumeza, ngakumbi umlinganiso welahleko elahlekileyo kwi-PQ, unokuqonda ngcono umthetho oguqukayo wokulahleka kokufudumeza.
Umlinganiselo welahleko elahlekileyo kwezi zimbini zingasentla zamkela indlela ye-IEEE 112B e-United States
Umfanekiso 2. Itshathi yomgca womlinganiselo welahleko yobhedu elahlekileyo ukuya kwilahleko yokufudumeza iyonke ye-R series 2-pole motor
1.3 Y2 iimotor series
Iimeko zobugcisa zichaza ukuba ilahleko elahlekileyo yi-0.5% yamandla okufakwayo, ngelixa i-GB/T1032-2005 ichaza ixabiso elicetyiswayo lokulahleka kwelahleko. Ngoku thatha indlela ye-1, kwaye ifomula yi-Ps = (0.025-0.005×lg(PN))×P1 ifomula PN- ilinganiswe amandla; P1- ngamandla igalelo.
Sicinga ukuba ixabiso elilinganisiweyo lelahleko elahlekileyo lilingana nexabiso elicetyiswayo, kwaye siphinde sibale ukubala kwe-electromagnetic, kwaye ngaloo ndlela sifumana umlinganiselo welahleko ezine zokufudumeza zokusetyenziswa kobhedu, ukusetyenziswa kwe-aluminium kunye nokusetyenziswa kwentsimbi kwilahleko epheleleyo yokufudumeza kwe-PQ. .Ukutshintshwa komlinganiselo wayo kwakhona kuhambelana nale migaqo ingentla.
Oko kukuthi: xa amandla etshintsha ukusuka kumncinci ukuya kumakhulu, ubungakanani bokusetyenziswa kobhedu kunye nokusetyenziswa kwe-aluminium ngokuqhelekileyo kuncipha ukusuka kumncinci ukuya kumncinci, kubonisa ukuhla.Ngakolunye uhlangothi, umlinganiselo welahleko yentsimbi kunye nelahleko elahlekileyo ngokuqhelekileyo iyanda ukusuka kwincinci ukuya enkulu, ebonisa indlela yokunyuka.Kungakhathaliseki ukuba i-2-pole, i-4-pole, okanye i-6-pole, ukuba amandla amakhulu kunamandla athile, ilahleko yentsimbi iya kudlula ilahleko yobhedu; Umlinganiselo welahleko elahlekileyo uya kwanda ukusuka kwincinci ukuya enkulu, ngokuthe ngcembe usondela ekulahlekeni kobhedu, okanye ugqithise ilahleko yobhedu.Ilahleko elahlekileyo engaphezulu kwe-110kW kwiipali ezi-2 iba yinto yokuqala ekulahlekeni kobushushu.
Umzobo 3 igrafu yomgca eyaphukileyo yomlinganiselo welahleko ezine zobushushu kwi-PQ ye-Y2 uchungechunge lwe-4-pole motors (ucinga ukuba ixabiso elilinganisiweyo lokulahleka kwelahleko lilingana nexabiso eliphakanyisiweyo elingentla, kunye nezinye ilahleko zibalwa ngokwexabiso) .Ulungelelwaniso ngumlinganiselo welahleko ezahlukeneyo zokufudumeza kwi-PQ (%), kwaye i-abscissa yi-motor power (kW).Ngokucacileyo, ilahleko yentsimbi engaphezulu kwe-90kW inkulu kunelahleko yobhedu.
Umzobo 3. Itshathi yomgca eyaphukileyo yomlinganiselo wokusetyenziswa kobhedu, ukusetyenziswa kwe-aluminium, ukusetyenziswa kwentsimbi kunye nokuchithwa okulahlekileyo kwilahleko yokufudumeza iyonke ye-Y2 series 4-pole motors.
1.4 Uphononongo loncwadi lwereyishini yeelahleko ezahlukeneyo ukuya kwilahleko iyonke (kuquka ukungqubana komoya)
Kufunyenwe ukuba ukusetyenziswa kobhedu kunye nokusetyenziswa kwe-aluminium kwi-60% ukuya kwi-70% yelahleko iyonke kwiimoto ezincinci, kwaye xa umthamo unyuka, uhla ukuya kwi-30% ukuya kwi-40%, ngelixa ukusetyenziswa kwentsimbi kuchasene. % ngaphezulu.Kwiilahleko ezilahlekileyo, iimoto ezincinci zithatha malunga ne-5% ukuya kwi-10% yelahleko iyonke, ngelixa iimoto ezinkulu zithatha ngaphezulu kwe-15%.Imithetho eveziweyo iyafana: oko kukuthi, xa amandla etshintsha ukusuka kwincinci ukuya enkulu, umlinganiselo wokulahleka kobhedu kunye nelahleko ye-aluminium ngokubanzi iyancipha ukusuka kwincinci ukuya kwincinci, ibonisa ukuhla, ngelixa umlinganiselo welahleko yentsimbi kunye nelahleko elahlekileyo ikhula ngokubanzi encinci ukuya enkulu, ebonisa ukuthambekela okunyukayo. .
1.5 Ifomula yokubala yexabiso elicetyiswayo lokulahleka okulahlekileyo ngokwe-GB/T1032-2005 Indlela 1
I-numerator lixabiso lelahleko elilinganisiweyo.Ukususela kwincinci ukuya kumandla amakhulu eenjini, umlinganiselo welahleko elahlekileyo ukuya kwinguqu yamandla egalelo, kwaye uyancipha ngokuthe ngcembe, kwaye uluhlu lotshintsho aluncinci, malunga ne-2.5% ukuya kwi-1.1%.Ukuba idinomineyitha itshintshelwe kwilahleko iyonke ∑P, oko kukuthi, Ps/∑P=Ps/P1/(1-η), ukuba ukusebenza kakuhle kwemoto ngu-0.667~0.967, ukubuyisela (1-η) yi-3~ I-30, oko kukuthi, ukungcola okulinganisiweyo Xa kuthelekiswa nomlinganiselo wamandla okufakwayo, umlinganiselo welahleko yokutshatyalaliswa kwilahleko iyonke ikhuliswe ngamaxesha angama-3 ukuya kuma-30. Ukuphakama kwamandla, ngokukhawuleza umgca ophukileyo ukhuphuka.Ngokucacileyo, ukuba umlinganiselo welahleko elahlekileyo kwilahleko yobushushu obupheleleyo uthathwa, "into yokukhulisa" inkulu.Kuluhlu lwe-R 2-pali ye-450kW motor kulo mzekelo ungasentla, umlinganiselo welahleko elahlekileyo kumandla okufaka i-Ps/P1 incinci kunexabiso elibaliweyo elicetyiswayo ngasentla, kunye nomlinganiselo welahleko elahlekileyo kwilahleko iyonke ∑P kunye nelahleko yobushushu iyonke. I-PQ yi-32.8%, ngokulandelanayo. I-39.5%, xa kuthelekiswa nomlinganiselo wegalelo lamandla e-P1, "ikhuliswe" malunga namaxesha angama-28 kunye namaxesha angama-34 ngokulandelanayo.
Indlela yokujonga kunye nohlalutyo kweli phepha kukuthatha umlinganiselo weentlobo ezi-4 zokulahleka kobushushu kwi-PQ yokulahleka kobushushu. Ixabiso lomlinganiselo likhulu, kwaye umlinganiselo kunye nomthetho wokutshintsha kweelahleko ezahlukeneyo unokubonwa ngokucacileyo, oko kukuthi, amandla ukusuka kwincinci ukuya enkulu, ukusetyenziswa kobhedu kunye nokusetyenziswa kwe-aluminium Ngokubanzi, umlinganiselo utshintshile ukusuka kwinkulu ukuya encinci, ebonisa ukuhla. umkhwa, ngelixa umlinganiselo welahleko yentsimbi kunye nelahleko elahlekileyo itshintshile ngokubanzi ukusuka kwincinci ukuya enkulu, ebonisa ukuthambekela kokunyuka.Ngokukodwa, kwaphawulwa ukuba amandla amakhulu eemoto, kokukhona ubungakanani belahleko elahlekileyo kwi-PQ, eyathi ngokuthe ngcembe yasondela ekulahlekeni kobhedu, yagqitha ilahleko yobhedu, yaze yaba yinto yokuqala ekulahlekeni kobushushu. ilahleko elahlekileyo.Xa kuthelekiswa nomlinganiselo welahleko elahlekileyo kumandla okufakwayo, umlinganiselo welahleko elinganisiweyo yelahleko ukuya kwilahleko yobushushu iyonke ibonakaliswa ngenye indlela, kwaye ayitshintshi ubume bayo bomzimba.
2. Amanyathelo
Ukwazi lo mgaqo ungentla luncedo kuyilo olunengqiqo kunye nokuveliswa kwemoto.Amandla emoto ahluke, kwaye imilinganiselo yokunciphisa ukunyuka kweqondo lokushisa kunye nokulahlekelwa kobushushu iyahluka, kwaye kugxininiso luhlukile.
2.1 Kwiinjini zamandla aphantsi, ukusetyenziswa kobhedu kubala umlinganiselo ophezulu wokulahleka kobushushu
Ngoko ke, ukunciphisa ukunyuka kwamaqondo obushushu kufuneka kuqala kunciphise ukusetyenziswa kobhedu, njengokwandisa icandelo lomnqamlezo wocingo, ukunciphisa inani labaqhubi kwi-slot nganye, ukwandisa i-stator slot shape, kunye nokwandisa umbindi wentsimbi.Kwifektri, ukunyuka kweqondo lokushisa kudla ngokulawulwa ngokulawula umthwalo wokushisa u-AJ, ochanekileyo ngokupheleleyo kwiinjini ezincinci.Ukulawula i-AJ kukulawula ukulahleka kobhedu. Akunzima ukufumana ilahleko yobhedu ye-stator yemoto yonke ngokwe-AJ, ububanzi bangaphakathi be-stator, ubude besiqingatha se-coil, kunye nokumelana nocingo lobhedu.
2.2 Xa amandla etshintsha ukusuka kwincinci ukuya enkulu, ilahleko yentsimbi isondela ngokuthe ngcembe ekulahlekeni kobhedu
Ukusetyenziswa kwe-ayini ngokuqhelekileyo kudlula ukusetyenziswa kobhedu xa kungaphezulu kwe-100kW.Ngoko ke, iinjini ezinkulu kufuneka zihlawule ekunciphiseni ukusetyenziswa kwentsimbi.Ngamanyathelo athile, ilahleko ephantsi ye-silicon sheet sheets ingasetyenziswa, ukuxinana kwamagnetic kwe-stator akufanele kube phezulu kakhulu, kwaye ingqalelo kufuneka ihlawulwe ekuhanjisweni okufanelekileyo koxinzelelo lwamagnetic lwecandelo ngalinye.
Ezinye iifektri ziyila kwakhona ezinye iinjini ezinamandla kwaye zinciphise ngokufanelekileyo ubume be-stator slot.Ukusabalalisa koxinzelelo lwamagnetic kunengqiqo, kwaye umlinganiselo wokulahleka kobhedu kunye nokulahlekelwa kwentsimbi kulungelelaniswa ngokufanelekileyo.Nangona ubuninzi be-stator benyuka, umthwalo we-thermal uyanda, kwaye ilahleko yethusi iyanda, i-stator magnetic density iyancipha, kwaye ilahleko yentsimbi iyancipha ngaphezu kokulahleka kobhedu.Umsebenzi ulingana noyilo lwangaphambili, kungekhona nje ukunyuka kweqondo lokushisa kuncitshisiwe, kodwa kunye nomlinganiselo wobhedu osetyenziswe kwi-stator ugcinwa.
2.3 Ukunciphisa ilahleko elahlekileyo
Eli nqaku ligxininisa ukuba iamandla amakhulu eemoto, kokukhona kufuneka kuqwalaselwe ngakumbi ekunciphiseni ilahleko elahlekileyo.Imbono yokuba "ilahleko ezilahlekileyo zincinci kakhulu kunelahleko zethusi" zisebenza kuphela kwiimoto ezincinci.Ngokucacileyo, ngokuqwalasela oku ngasentla kunye nokuhlalutya, amandla aphezulu, afanelekile.Imbono yokuba "ilahleko elahlekileyo incinci kakhulu kunelahleko yentsimbi" nayo ayifanelekanga.
Umlinganiselo wexabiso elilinganisiweyo lelahleko elahlekileyo kumandla egalelo liphezulu kwiinjini ezincinci, kwaye umlinganiselo uphantsi xa amandla emakhulu, kodwa akunakugqitywa ukuba iimoto ezincinci kufuneka zihlawule ingqalelo ekunciphiseni ilahleko elahlekileyo, ngelixa iinjini ezinkulu zenza. akukho mfuneko yokunciphisa ilahleko elahlekileyo. ilahleko.Ngokuchasene noko, ngokwalo mzekelo ungasentla kunye nohlalutyo, amandla amakhulu eemoto, aphezulu umlinganiselo welahleko elahlekileyo ekulahlekeni kobushushu obupheleleyo, ilahleko elahlekileyo kunye nokulahleka kwentsimbi kusondele okanye kudlule ilahleko yobhedu, ngoko ke amandla emoto, okukhona ingqwalasela engaphezulu kufuneka ihlawulwe kuyo. Ukunciphisa ilahleko elahlekileyo.
2.4 Amanyathelo okunciphisa ilahleko elahlekileyo
Iindlela zokunciphisa ilahleko elahlekileyo, njengokwandisa i-gap yomoya, ngenxa yokuba ilahleko elahlekileyo iphantse ihambelane ngokuphambene nesikwere sesithuba somoya; ukunciphisa amandla omagnetic e-harmonic, njengokusebenzisa i-sinusoidal (i-harmonic ephantsi) i-windings; indawo efanelekileyo yokubeka; ukunciphisa i-cogging, i-rotor ithatha i-slot evaliweyo, kunye ne-slot evulekileyo ye-high-voltage motor ithatha i-wedge ye-magnetic slot; ukuphoswa kwe-aluminiyam ye-rotor yokugoba unyango kunciphisa i-lateral current, njalo njalo.Kuyafaneleka ukuba uqaphele ukuba la manyathelo angentla apha ngokuqhelekileyo ayifuni ukongezwa kwezinto ezisebenzayo.Ukusetyenziswa kwezinto ezohlukeneyo kukwanxulunyaniswa nemeko yokufudumeza kwemoto, njengokulahla ubushushu obulungileyo bokujikajika, ubushushu obuphantsi bangaphakathi bemoto, kunye nokusetyenziswa okuphantsi kwezinto ezahlukeneyo.
Umzekelo: Umzi-mveliso ulungisa injini enepali ezi-6 kunye nama-250kW.Emva kovavanyo lokulungiswa, ukunyuka kweqondo lokushisa kuye kwafikelela kwi-125K phantsi kwe-75% yomthwalo olinganisiweyo.Umsantsa womoya ke ngoko umatshini wenziwa ukuba umphinda-phindwe ka-1.3 kunobukhulu bokuqala.Kuvavanyo oluphantsi komthwalo olinganisiweyo, ukunyuka kweqondo lokushisa ngokwenene kwehle ukuya kwi-81K, ebonisa ngokupheleleyo ukuba umsantsa womoya unyukile kwaye ukuchithwa okulahlekileyo kuye kwancitshiswa kakhulu.I-Harmonic yamandla amagnetic yinto ebalulekileyo yokulahleka okulahlekileyo. Iimotor ezinomthamo ophakathi kunye nomkhulu zisebenzisa i-sinusoidal windings ukunciphisa amandla emagnetic magnetic, kwaye umphumo uhlala ulungile kakhulu.I-sinusoidal windings eyilwe kakuhle isetyenziselwa iimotor eziphakathi kunye eziphezulu. Xa i-harmonic amplitude kunye ne-amplitude iyancipha nge-45% ukuya kwi-55% xa kuthelekiswa noyilo lwangaphambili, ilahleko elahlekileyo ingancitshiswa nge-32% ukuya kwi-55%, ngaphandle koko ukunyuka kweqondo lokushisa kuya kuncitshiswa, kwaye ukusebenza kakuhle kuya kwanda. , ingxolo iyancipha, yaye inokonga ubhedu nentsimbi.
3. Isiphelo
3.1 Isigaba sesithathu se-AC motor
Xa amandla etshintsha ukusuka kumncinci ukuya kumakhulu, ubungakanani bokusetyenziswa kobhedu kunye nokusetyenziswa kwe-aluminium ukuya kwilahleko yobushushu iyonke inyuka ukusuka kwinkulu ukuya kwencinci, ngelixa ubungakanani bokusetyenziswa kwentsimbi ilahleko elahlekileyo inyuka ngokubanzi ukusuka kwincinci ukuya enkulu.Kwiimoto ezincinci, ilahleko yobhedu yenza eyona nxalenye iphezulu yokulahleka kobushushu. Njengoko umthamo wemoto ukhula, ilahleko elahlekileyo kunye nokulahleka kwentsimbi kusondela kwaye kudlule ukulahleka kobhedu.
3.2 Ukunciphisa ilahleko yobushushu
Amandla emoto ahlukile, kwaye ukugxilwa kwamanyathelo athathiweyo kukwahluke.Kwiimoto ezincinci, ukusetyenziswa kobhedu kufuneka kuncitshiswe kuqala.Kwiimotor eziphakathi kunye eziphezulu, ingqwalasela engaphezulu kufuneka ihlawulwe ekunciphiseni ilahleko yentsimbi kunye nelahleko elahlekileyo.Imbono yokuba "ilahleko elahlekileyo incinci kakhulu kunelahleko zobhedu kunye nelahleko yentsimbi" icala elinye.
3.3 Umyinge welahleko elahlekileyo kwilahleko yobushushu iyonke yeenjini ezinkulu uphezulu
Eli phepha ligxininisa ukuba amandla amakhulu eenjini, ingqwalasela eninzi kufuneka ihlawulwe ekunciphiseni ilahleko elahlekileyo.
Ixesha lokuposa: Jul-01-2022