Cov qauv thiab cov qauv kev ua haujlwm ntawm
ruaj khov hlau nplaum synchronous lub cev muaj zog
1. Cov qauv ntawm cov hlau nplaum ruaj khov synchronous lub cev muaj zog
Permanent magnet synchronous motor (PMSM) feem ntau muaj rotor, kawg npog thiab stator. Cov qauv tseem ceeb yog: ncej, rotor, stator core, stator winding, puag thiab kiv cua txias.
Cov hlau nplaum ruaj khov synchronous lub cev muaj zog muaj stator core thiab winding, tsim ib qho synchronous rotating magnetic teb. Lub luag haujlwm ntawm stator yog tsim kom muaj magnetic teb thaum lub sijhawm ua haujlwm ntawm lub cev muaj zog. Tom qab lub symmetrical peb-theem alternating tam sim no tau dhau mus rau peb-theem stator winding, ib tug rotating magnetic teb yog generated uas rotates raws lub puab voj voog qhov chaw ntawm lub stator thiab rotor ntawm ib tug synchronous ceev. Lub stator ntawm peb-theem mus tas li hlau nplaum synchronous lub cev muaj zog tsis ntau txawv ntawm qhov peb-theem AC asynchronous lub cev muaj zog hauv cov qauv.
Thawj daim ntawv:ib tug rotor nrog ib tug mus tas li hlau nplaum ncej ntsia rau ntawm ib ncig ntawm lub rotor core yog hu ua ib tug nto protruding mus tas li hlau nplaum rotor.
Daim ntawv thib ob:cov hlau nplaum ruaj khov ncej yog embedded rau saum npoo ntawm lub rotor core, uas yog hu ua nto embedded mus tas li hlau nplaum rotor.
Daim ntawv thib peb:Nws yog feem ntau siv nyob rau hauv loj motors rau embed mus tas li hlau nplaum nyob rau hauv lub rotor, uas yog hu ua ib tug embedded mus tas li hlau nplaum rotor (los yog built-in mus tas li hlau nplaum rotor los yog embedded mus tas li hlau nplaum rotor). Cov hlau nplaum ruaj khov yog embedded rau hauv lub rotor core, thiab muaj cov slots rau kev txhim kho cov hlau nplaum ruaj khov hauv cov tub ntxhais. Cov txheej txheem tseem ceeb ntawm cov hlau nplaum ruaj khov yog qhia hauv daim duab. Hauv txhua daim ntawv, muaj kev sib xyaw ua ke ntawm ntau txheej ntawm cov hlau nplaum ruaj khov.
2. Lub hauv paus ntsiab lus ua haujlwm ntawm cov hlau nplaum ruaj khov synchronous lub cev muaj zog
Cov hlau nplaum ruaj khov synchronous lub cev muaj zog feem ntau yog nruab nrog lub tshuab hloov pauv (resolver), raws li qhia hauv daim duab. Nws yog ib qho electromagnetic sensor siv los xyuas qhov chaw thiab ceev ntawm lub rotor. Lub hauv paus ntsiab lus ntawm kev daws teeb meem yog qhov pib zoo ib yam li qhov hloov pauv.
Cov kev daws teeb meem ntawm cov hlau nplaum ruaj khov synchronous lub cev muaj zog txais kev daws teeb meem tsis txaus siab, thiab nws cov rotor yog lub rotor core tsis muaj rotor windings. Lub rotor yog ua los ntawm ib tug tshwj xeeb zoo nrog ib tug hlau core, thiab cov zis voltage hloov nyob rau hauv amplitude raws li qhov sib txawv ntawm lub rotor core thiab stator core (amplitude modulation type).
Cov hlau nplaum ruaj khov synchronous lub cev muaj zog yog ib qho cuab yeej uas sib nqus ntawm lub tshuab hluav taws xob thiab cov hlau nplaum ntawm cov hlau nplaum ruaj khov rub ib leeg los ua kom muaj zog thiab txav, raws li qhia hauv daim duab.
Peb-theem symmetrical alternating tam sim no txuas nrog peb-theem winding ntawm lub cev muaj zog stator los ua kom muaj qhov sib nqus sib nqus. Raws li lub hauv paus ntsiab lus uas cov ncej sib txawv nyiam ib leeg thiab zoo li cov ncej sib sib zog nqus, txawm li cas los xij ntawm qhov pib txheeb ze ntawm stator rotating ncej thiab cov hlau nplaum ruaj khov yog, stator rotating ncej yuav ib txwm rub lub rotor tig synchronously vim lub zog sib nqus.
Cov yam ntxwv ntawm cov hlau nplaum ruaj khov synchronous lub cev muaj zog
Qhov loj me, lub teeb yuag, thiab lub zog siab ceev. Daim ntawv thov kev ua haujlwm siab ultra-muaj zog ruaj khov cov khoom siv hlau nplaum tau txo qhov loj thiab qhov hnyav ntawm cov hlau nplaum ruaj khov, thiab lub zog ceev yog tsawg kawg yog 1.5 npaug ntawm peb-theem asynchronous motors.
High efficiency thiab txuag hluav taws xob. Vim hais tias qhov excitation magnetic teb yog muab los ntawm cov hlau nplaum tas mus li, cov hlau nplaum ruaj khov rotor tsis xav tau excitation, thiab cov efficiency yuav siab li 90%. Piv nrog rau asynchronous motors, lub high-efficiency khiav ceev ntau yog dav thiab lub zog txuag yog qhov tseem ceeb. Tshwj xeeb tshaj yog thaum khiav ntawm qis ceev, qhov kom zoo dua yog pom tseeb dua.
Tsawg kub nce. Vim muaj kev ua haujlwm siab ntawm cov hlau nplaum ruaj khov, tsis muaj qhov tsis kam poob hauv lub rotor winding, thiab tsis muaj qhov cuam tshuam me me los yog yuav luag tsis muaj qhov cuam tshuam tam sim no hauv stator winding, uas ua rau lub cev muaj zog kub nce qis thiab ua rau lub neej ua haujlwm ntawm lub cev muaj zog.
Cov lus teb ceev ceev, kev tswj ceev nrawm, muaj kev ntseeg siab, tsis tshua muaj suab nrov thiab ua haujlwm zoo, haum rau nruab nrab thiab siab zog zaus. Tam sim no, hluav taws xob neeg nrog caij tsheb feem ntau siv cov hlau nplaum ruaj khov synchronous motors.
Yuav tsum muaj qee yam ntawm cov hlau nplaum ruaj khov, uas yog kim tshaj li peb-theem asynchronous motors. Tsis tas li ntawd, cov hlau nplaum tas mus li yog qhov ua rau tsis tuaj yeem demagnetization ntawm qhov kub thiab txias, thiab lawv qhov kev ntseeg tau qis dua li ntawm peb-theem asynchronous motors.
