Lub switched reluctance motor drive system (srd) muaj plaub yam: switched reluctance motor (srm or sr motor), power converter, controller and detector. Txoj kev loj hlob sai ntawm hom tshiab ntawm kev tswj kev ceev tsav tau tsim. Lub cev muaj zog hloov pauv tsis txaus siab yog ob lub cev tsis txaus siab, uas siv lub hauv paus ntsiab lus ntawm qhov tsis txaus siab yam tsawg kawg nkaus los tsim kom muaj lub zog tsis txaus siab. Vim tias nws cov qauv yooj yim heev thiab ruaj khov, kev tswj kev ceev nrawm, kev tswj hwm kev ua tau zoo, thiab kev kub ceev hauv tag nrho cov kev cai ceev. Kev ua haujlwm siab thiab kev ntseeg siab ua rau nws muaj zog sib tw ntawm AC lub cev muaj zog tswj qhov system, DC lub cev muaj zog tswj qhov system thiab brushless DC lub cev muaj zog tswj qhov system. Switched reluctance motors tau dav los yog pib siv nyob rau hauv ntau yam xws li hluav taws xob tsheb tsav, khoom siv hauv tsev, kev lag luam dav dav, kev lag luam aviation thiab servo systems, npog ntau yam siab thiab qis tsav tshuab nrog lub zog ntawm 10w mus rau 5mw, qhia. kev lag luam loj loj.
2.1 Lub cev muaj zog muaj cov qauv yooj yim, tus nqi qis, thiab haum rau kev kub ceev
Cov qauv ntawm cov hloov tsis kam lub cev muaj zog yog yooj yim dua li ntawm cov squirrel-cage induction motor uas feem ntau suav tias yog qhov yooj yim tshaj plaws. Lub stator coil yog cov concentrated winding, uas yog ib qho yooj yim rau embed, qhov kawg yog luv luv thiab ruaj khov, thiab kev ua haujlwm yog txhim khu kev qha. Kev vibration ib puag ncig; lub rotor tsuas yog ua los ntawm silicon steel los xij, yog li yuav tsis muaj teeb meem xws li cov neeg pluag squirrel tawb casting thiab tawg tuav nyob rau hauv kev siv thaum lub sij hawm tsim cov txheej txheem ntawm squirrel tawb induction motors. Lub rotor muaj lub zog ua haujlwm siab heev thiab tuaj yeem ua haujlwm ntawm qhov nrawm heev. mus txog 100,000 revolutions ib feeb.
2.2 Yooj yim thiab txhim khu kev qha fais fab Circuit Court
Cov kev taw qhia torque ntawm lub cev muaj zog tsis muaj dab tsi ua nrog cov kev taw qhia ntawm lub winding tam sim no, uas yog, tsuas yog lub winding tam sim no nyob rau hauv ib qho kev taw qhia yog yuav tsum tau, lub theem windings yog kev cob cog rua ntawm ob lub hwj chim raj ntawm lub ntsiab Circuit Court, thiab yuav tsum tau. tsis muaj choj caj npab ncaj-los ntawm luv-circuit txhaum. , Lub kaw lus muaj kev ua txhaum cai thiab muaj kev ntseeg siab, thiab tuaj yeem siv rau cov sijhawm tshwj xeeb xws li aerospace.
2.3 Siab pib torque, qis pib tam sim no
Cov khoom lag luam ntawm ntau lub tuam txhab tuaj yeem ua tiav cov haujlwm hauv qab no: thaum pib tam sim no yog 15% ntawm qhov ntsuas tam sim no, qhov pib torque yog 100% ntawm qhov ntsuas torque; thaum pib tam sim no yog 30% ntawm tus nqi ntsuas, qhov pib torque tuaj yeem ncav cuag 150% ntawm tus nqi ntsuas. %. Piv nrog rau cov yam ntxwv pib ntawm lwm cov kev tswj ceev, xws li DC lub cev muaj zog nrog 100% pib tam sim no, tau txais 100% torque; squirrel tawb induction lub cev muaj zog nrog 300% pib tam sim no, tau txais 100% torque. Nws tuaj yeem pom tau tias lub tshuab hloov pauv tsis txaus ntseeg muaj qhov ua tau zoo pib, qhov cuam tshuam tam sim no me me thaum lub sijhawm pib, thiab cov cua sov ntawm lub cev muaj zog thiab tus maub los yog me dua qhov kev ua haujlwm tsis tu ncua, yog li nws yog qhov tshwj xeeb tshaj yog tsim rau nquag pib-nres thiab rov qab hloov pauv kev ua haujlwm, xws li gantry planers, Milling machine, reversible rolling mills in the metallurgical industry, flying saws, flying shears, etc.
2.4 Cov kev cai dav dav thiab kev ua haujlwm siab
Kev khiav hauj lwm efficiency yog siab li 92% ntawm cov ntsuas ceev thiab ntsuas load, thiab tag nrho cov efficiency yog khaws cia siab li 80% nyob rau hauv tag nrho cov ceev ntau yam.
2.5 Muaj ntau yam kev tswj tsis tau thiab kev tswj xyuas kev ua tau zoo
Muaj tsawg kawg yog plaub qhov kev ua haujlwm tseem ceeb thiab ntau txoj hauv kev los tswj cov kev hloov pauv tsis txaus siab: theem tig lub kaum sab xis, cuam tshuam lub kaum sab xis, theem tam sim no amplitude thiab theem winding voltage. Muaj ntau yam kev tswj tsis tau, uas txhais tau hais tias kev tswj tau yooj yim thiab yooj yim. Kev tswj cov txheej txheem sib txawv thiab qhov ntsuas qhov tseem ceeb tuaj yeem siv raws li kev ua haujlwm ntawm lub cev muaj zog thiab cov xwm txheej ntawm lub cev muaj zog ua kom nws khiav hauv lub xeev zoo tshaj plaws, thiab nws kuj tuaj yeem ua tiav ntau yam haujlwm thiab cov yam ntxwv tshwj xeeb nkhaus, xws li kev ua haujlwm. lub cev muaj zog tib yam plaub-quadrant ua haujlwm (rau pem hauv ntej, thim rov qab, motoring thiab braking) muaj peev xwm, nrog siab pib torque thiab load peev xwm nkhaus rau series motors.
2.6 Nws tuaj yeem ua tau raws li ntau yam kev xav tau tshwj xeeb los ntawm kev sib koom ua ke thiab kev sib koom ua ke ntawm lub tshuab thiab hluav taws xob
Cov qauv zoo tshaj thiab kev ua tau zoo ntawm kev hloov pauv tsis txaus lub cev muaj zog ua rau nws daim ntawv thov thaj chaw dav heev. Cov nram qab no peb daim ntawv thov raug tshuaj xyuas.
3.1 Gantry Planer
Lub gantry planer yog lub tshuab ua haujlwm tseem ceeb hauv kev lag luam machining. Txoj kev ua hauj lwm ntawm lub planer yog tias lub worktable tsav lub workpiece rau reciprocate. Thaum nws txav mus rau pem hauv ntej, tus planer tsau ntawm lub thav duab npaj lub workpiece, thiab thaum nws txav rov qab, tus planer nqa lub workpiece. Txij thaum ntawd los, lub workbench rov qab nrog ib txoj kab dawb paug. Lub luag haujlwm ntawm lub ntsiab tsav ntawm lub planer yog tsav lub reciprocating motion ntawm lub worktable. Obviously, nws cov kev ua tau zoo yog ncaj qha ntsig txog kev ua haujlwm zoo thiab kev ua haujlwm ntawm cov planer. Yog li ntawd, lub kaw lus tsav yuav tsum muaj cov khoom tseem ceeb hauv qab no.
3.1.1 Cov yam ntxwv tseem ceeb
(1) Nws yog tsim rau nquag pib, braking thiab rau pem hauv ntej thiab rov qab tig, tsis pub tsawg tshaj 10 zaug ib feeb, thiab pib thiab braking txheej txheem yog du thiab ceev.
(2) Qhov sib txawv zoo li qub yuav tsum tau siab. Lub dynamic ceev poob los ntawm tsis muaj-loading rau tam sim ntawd riam loading tsis ntau tshaj 3%, thiab lub sij hawm luv luv overload muaj peev xwm muaj zog.
(3) Cov kev tswj ceev ceev yog qhov dav, uas tsim nyog rau cov kev xav tau ntawm kev ceev qis, nruab nrab-ceev kev npaj thiab kev kub ceev rov qab mus.
(4) Kev ua haujlwm ruaj khov yog qhov zoo, thiab txoj haujlwm rov qab los ntawm kev mus ncig yog qhov tseeb.
Tam sim no, lub ntsiab tsav tsheb ntawm domestic gantry planer feem ntau muaj daim ntawv ntawm DC unit thiab daim ntawv ntawm asynchronous motor-electromagnetic clutch. Muaj coob tus neeg tsav tsheb feem ntau yog tsav los ntawm DC units yog nyob rau hauv lub xeev ntawm kev laus laus, lub cev muaj zog yog hnyav heev, lub txim ntawm cov txhuam yog loj ntawm kev kub ceev thiab hnyav load, tsis ua hauj lwm yog heev, thiab cov txij nkawm kev ua hauj lwm yog loj, uas ncaj qha cuam tshuam rau kev tsim khoom ib txwm muaj. . Tsis tas li ntawd, qhov system no inevitably muaj qhov tsis zoo ntawm cov khoom siv loj, kev siv hluav taws xob siab thiab lub suab nrov. Lub asynchronous lub cev muaj zog-electromagnetic clutch system cia siab rau electromagnetic clutch kom paub cov lus qhia rau pem hauv ntej thiab thim rov qab, lub clutch hnav yog qhov hnyav, kev ua haujlwm ruaj khov tsis zoo, thiab nws tsis yooj yim los kho qhov ceev, yog li nws tsuas yog siv rau lub teeb planers. .
3.1.2 Teeb meem nrog Induction Motors
Yog hais tias lub induction lub cev muaj zog kuj sib txawv ntawm zaus ceev tswj kev tsav tsheb, cov teeb meem hauv qab no tshwm sim:
(1) Cov yam ntxwv tso zis yog mos, yog li ntawd lub gantry planer tsis tuaj yeem nqa txaus load ntawm qhov ceev.
(2) Qhov sib txawv zoo li qub yog qhov loj, kev ua haujlwm tsis zoo, cov txheej txheem ua haujlwm muaj cov qauv, thiab nws txawm nres thaum riam noj.
(3) Qhov pib thiab braking torque me me, qhov pib thiab braking qeeb, thiab qhov chaw nres tsheb loj dhau.
(4) Lub cev muaj zog ua kom sov.
Cov yam ntxwv ntawm lub cev hloov pauv tsis txaus ntseeg tshwj xeeb tshaj yog tsim nyog rau kev pib nquag, braking thiab commutation ua haujlwm. Qhov pib tam sim no thaum lub sij hawm commutation txheej txheem yog me me, thiab qhov pib thiab braking torques yog adjustable, yog li xyuas kom meej tias qhov ceev yog raws li tus txheej txheem yuav tsum tau nyob rau hauv ntau yam ceev ranges. ntsib cov. Lub tshuab hluav taws xob hloov tsis kam kuj tseem muaj lub zog loj. Txawm hais tias nws yog qhov siab lossis qis qis, tsis muaj kev thauj khoom lossis kev thauj khoom tag nrho, nws lub zog muaj zog yog ze rau 1, uas yog qhov zoo dua li lwm cov tshuab xa tawm tam sim no siv hauv gantry planers.
3.2 Lub tshuab ntxhua khaub ncaws
Nrog rau txoj kev loj hlob ntawm kev lag luam thiab kev txhim kho txuas ntxiv ntawm tib neeg lub neej zoo, qhov kev thov rau ib puag ncig tus phooj ywg thiab ntse tshuab ntxhua khaub ncaws tseem nce ntxiv. Raws li lub zog tseem ceeb ntawm lub tshuab ntxhua khaub ncaws, kev ua haujlwm ntawm lub cev muaj zog yuav tsum tau txhim kho tas li. Tam sim no, muaj ob hom tshuab ntxhua khaub ncaws nrov hauv kev lag luam hauv tsev: pulsator thiab nruas tshuab ntxhua khaub ncaws. Tsis muaj teeb meem dab tsi ntawm lub tshuab ntxhua khaub ncaws, lub hauv paus ntsiab lus tseem ceeb yog lub cev muaj zog tsav lub tshuab pulsator lossis lub nruas kom tig, yog li tsim cov dej ntws, thiab tom qab ntawd cov dej ntws thiab lub zog tsim los ntawm lub tshuab pulsator thiab lub nruas yog siv los ntxuav cov khaub ncaws. . Kev ua tau zoo ntawm lub cev muaj zog txiav txim siab txog kev ua haujlwm ntawm lub tshuab ntxhua khaub ncaws mus rau qhov loj. Lub xeev, uas yog, txiav txim siab qhov zoo ntawm kev ntxuav thiab ziab, nrog rau qhov loj ntawm lub suab nrov thiab kev co.
Tam sim no, cov motors siv nyob rau hauv lub tshuab ntxhua khaub ncaws pulsator feem ntau yog ib-theem induction motors, thiab ob peb siv zaus hloov motors thiab brushless DC motors. Lub nruas tshuab ntxhua khaub ncaws feem ntau yog raws li lub cev muaj zog, ntxiv rau qhov sib txawv zaus lub cev muaj zog, brushless DC lub cev muaj zog, hloov tsis kam lub cev muaj zog.
Qhov tsis zoo ntawm kev siv ib-theem induction lub cev muaj zog yog qhov pom tseeb, raws li hauv qab no:
(1) tsis tuaj yeem kho qhov ceev
Muaj tsuas yog ib qho kev sib hloov ceev thaum lub sij hawm ntxuav, thiab nws yog ib qho nyuaj rau hloov mus rau qhov yuav tsum tau ntawm ntau yam fabrics nyob rau hauv lub ntxuav rotation ceev. Lub thiaj li hu ua "kev ntxuav muaj zog", "tsis muaj zog", "mob ntxuav" thiab lwm yam txheej txheem ntxuav tsuas yog hloov lub sijhawm ntawm kev sib hloov mus rau pem hauv ntej thiab thim rov qab, thiab txhawm rau saib xyuas cov kev xav tau ntawm kev sib hloov ceev. Thaum ntxuav, kev sib hloov ceev thaum lub cev qhuav dej feem ntau qis, feem ntau tsuas yog 400 rpm txog 600 rpm.
(2) Lub efficiency yog tsawg heev
Qhov ua tau zoo yog feem ntau qis dua 30%, thiab qhov pib tam sim no loj heev, uas tuaj yeem ncav cuag 7 txog 8 npaug ntawm qhov ntsuas tam sim no. Nws yog ib qho nyuaj rau hloov mus rau qhov nquag mus tom ntej thiab rov qab ntxhua khaub ncaws.
Lub cev muaj zog yog DC series lub cev muaj zog, uas muaj qhov zoo ntawm qhov pib lub zog loj, kev ua haujlwm siab, kev tswj ceev ceev, thiab kev ua haujlwm zoo. Txawm li cas los xij, qhov tsis zoo ntawm lub tshuab hluav taws xob yog tias cov qauv yog qhov nyuaj, lub rotor tam sim no yuav tsum tau hloov kho los ntawm cov commutator thiab txhuam, thiab cov zawv zawg kev sib txhuam ntawm cov commutator thiab txhuam yog qhov ua rau cov khoom siv coj los siv, suab nrov, sparks, thiab lwm yam. electromagnetic cuam tshuam. Qhov no txo qhov kev ntseeg ntawm lub cev muaj zog thiab ua rau nws lub neej luv.
Cov yam ntxwv ntawm kev hloov pauv tsis kam lub cev muaj zog ua rau nws muaj peev xwm ua tiav cov txiaj ntsig zoo thaum siv rau lub tshuab ntxhua khaub ncaws. Kev hloov pauv tsis kam lub cev muaj zog tswj qhov system muaj ntau qhov kev tswj ceev ceev, uas tuaj yeem ua "ntxhiab" thiab
Cov kev sib tw "txhua yam ua haujlwm ntawm qhov zoo tshaj plaws rau kev ntxuav cov txheej txheem tseeb, nthuav qhia ntxuav, maj mam ntxuav, velvet ntxuav, thiab txawm tias qhov sib txawv ntawm kev ntxuav ceev. Koj tuaj yeem xaiv qhov kev sib hloov ceev ntawm qhov xav tau thaum lub cev qhuav dej. Koj tuaj yeem ua kom ceev ceev raws li qee qhov kev pab cuam, kom cov khaub ncaws tuaj yeem zam kev vibration thiab suab nrov tshwm sim los ntawm kev faib tsis sib xws thaum lub sij hawm spinning. Kev pib ua haujlwm zoo heev ntawm kev hloov pauv tsis txaus ntseeg lub cev muaj peev xwm tshem tawm qhov cuam tshuam ntawm lub cev muaj zog nquag mus rau pem hauv ntej thiab rov qab pib tam sim no ntawm daim phiaj hluav taws xob thaum lub sijhawm ntxuav, ua rau kev ntxuav thiab kev sib hloov du thiab tsis muaj suab nrov. Kev ua haujlwm siab ntawm kev hloov pauv tsis txaus ntseeg lub cev muaj zog tswj kev tswj hwm hauv tag nrho cov kev tswj hwm ceev tuaj yeem txo qis zog ntawm lub tshuab ntxhua khaub ncaws.
Lub brushless DC lub cev muaj zog yog qhov muaj zog sib tw rau lub cev muaj zog hloov pauv tsis kam, tab sis qhov zoo ntawm lub tshuab hloov pauv tsis txaus siab yog tus nqi qis, muaj zog, tsis muaj demagnetization thiab kev ua tau zoo pib.
3.3 Hluav taws xob tsheb
Txij li thaum xyoo 1980, vim tib neeg muaj kev mloog zoo rau ib puag ncig thiab lub zog teeb meem, lub tsheb hluav taws xob tau dhau los ua qhov zoo tshaj plaws ntawm kev thauj mus los vim lawv qhov zoo ntawm xoom emissions, tsis tshua muaj suab nrov, dav siv hluav taws xob, thiab kev siv hluav taws xob siab. Cov tsheb hluav taws xob muaj cov kev xav tau hauv qab no rau lub cev muaj zog tsav: kev ua haujlwm siab nyob rau hauv tag nrho cov kev khiav hauj lwm cheeb tsam, siab zog ceev thiab torque ceev, dav kev khiav hauj lwm ceev ntau yam, thiab lub system yog waterproof, shock-resistant thiab cuam tshuam-resistant. Tam sim no, lub hauv paus tsav lub cev muaj zog rau cov tsheb fais fab suav nrog induction motors, brushless DC motors thiab switched reluctance motors.
Lub switched reluctance lub cev muaj zog ceev tswj qhov system muaj ib tug series ntawm cov yam ntxwv nyob rau hauv kev ua tau zoo thiab cov qauv, uas ua rau nws heev haum rau hluav taws xob tsheb. Nws muaj qhov zoo hauv qab no hauv kev siv hluav taws xob tsheb:
(1) Lub cev muaj zog muaj cov qauv yooj yim thiab haum rau kev kub ceev. Feem ntau ntawm qhov poob ntawm lub cev muaj zog yog tsom rau ntawm stator, uas yog qhov yooj yim kom txias thiab tuaj yeem yooj yim ua rau hauv cov dej-txias tawg-pov thawj qauv, uas yeej yuav tsum tsis muaj kev saib xyuas.
(2) Kev ua haujlwm siab tuaj yeem tswj hwm ntau lub zog thiab nrawm, uas nyuaj rau lwm lub tshuab tsav kom ua tiav. Cov yam ntxwv no muaj txiaj ntsig zoo rau kev txhim kho kev tsav tsheb ntawm hluav taws xob tsheb.
(3) Nws yog ib qho yooj yim kom paub txog plaub-quadrant kev ua haujlwm, paub txog lub zog rov tsim dua tshiab, thiab tswj kom muaj peev xwm braking muaj zog hauv qhov chaw ua haujlwm siab.
(4) Qhov pib tam sim no ntawm lub cev muaj zog me me, tsis muaj kev cuam tshuam rau lub roj teeb, thiab qhov pib torque yog loj, uas yog tsim rau hnyav-load pib.
(5) Ob lub cev muaj zog thiab lub zog hloov hluav taws xob yog qhov ruaj khov thiab txhim khu kev qha, haum rau ntau qhov chaw hnyav thiab kub kub, thiab muaj kev hloov tau zoo.
Nyob rau hauv kev pom ntawm qhov zoo saum toj no, muaj ntau yam kev siv ntawm kev hloov pauv tsis txaus lub cev muaj zog hauv tsheb fais fab, tsheb npav hluav taws xob thiab tsheb kauj vab hluav taws xob hauv tsev thiab txawv teb chaws].
Vim hais tias lub cev muaj zog hloov pauv muaj qhov zoo ntawm cov qauv yooj yim, me me pib tam sim no, kev tswj ceev nrawm, thiab kev tswj tau zoo, nws muaj qhov zoo ntawm daim ntawv thov zoo thiab daim ntawv thov dav dav hauv thaj chaw ntawm gantry planers, ntxhua khaub ncaws, thiab hluav taws xob tsheb. Muaj ntau yam kev siv tswv yim hauv cov teb saum toj no. Txawm hais tias muaj qee qhov kev thov hauv Suav teb, nws tseem nyob hauv nws cov me nyuam mos thiab nws lub peev xwm tseem tsis tau paub txog. Nws ntseeg tias nws daim ntawv thov nyob rau hauv cov lus hais saum toj no yuav dhau los ua ntau thiab ntau dua.
Post lub sij hawm: Lub Xya hli ntuj-18-2022