Main Circuit Court
Lub ntsiab Circuit Court yog lub zog hloov dua siab tshiab ib feem uas muab cov kev cai voltage thiab zaus tswj fais fab mov rau asynchronous lub cev muaj zog, thiab lub ntsiab Circuit Court ntawm lub zaus converter yuav roughly muab faib ua ob pawg: hom voltage yog lub zaus converter uas converts DC ntawm lub voltage qhov chaw mus rau hauv AC, thiab lub lim ntawm DC lub voj yog lub capacitor. Hom tam sim no yog ib zaus converter uas hloov DC ntawm qhov tam sim no mus rau hauv AC, thiab nws DC voj filtering yog inductor. Nws muaj peb ntu: "rectifier" uas hloov lub zog zaus lub zog rau hauv DC lub zog, "lub voj voog tiaj tus" uas nqus cov hluav taws xob hloov hluav taws xob tsim los ntawm lub converter thiab inverter, thiab "inverter" uas hloov DC lub zog rau hauv AC zog.
Rectifier
Ib tug loj tus naj npawb ntawm converters siv diodes, uas hloov lub hwj chim zaus zog rau DC hwj chim. Nws kuj tseem tuaj yeem tsim cov hloov pauv hloov pauv nrog ob pawg ntawm transistor converters, uas tuaj yeem rov tsim dua tshiab vim nws cov kev taw qhia fais fab rov qab.
Flat wave circuit
Lub rectified DC voltage ntawm lub rectifier muaj ib tug pulsation voltage uas yog 6 lub sij hawm lub zaus ntawm lub hwj chim mov, thiab lub pulsating tam sim no generated los ntawm lub inverter kuj ua rau lub DC voltage hloov. Txhawm rau tiv thaiv kev hloov pauv voltage, inductors thiab capacitors yog siv los nqus cov pulsating voltages (tam sim no). Lub peev xwm ntawm lub cuab yeej yog me me, thiab yog tias muaj cov npoo nruab nrab ntawm cov khoom siv hluav taws xob thiab cov khoom siv hluav taws xob tseem ceeb, lub voj voog yooj yooj yim yuav siv tau yam tsis muaj qhov inductor.
Inverter
Nyob rau hauv sib piv rau lub rectifier, lub inverter converts DC lub hwj chim rau hauv AC lub hwj chim ntawm qhov yuav tsum tau zaus, thiab tig 6 switching pab kiag li lawm rau thiab tawm ntawm lub sij hawm txiav txim kom tau ib tug 3-theem AC tso zis. Siv lub zog-hom PWM inverter ua piv txwv, lub sijhawm hloov pauv thiab qhov hluav taws xob waveform tau qhia.
Kev tswj Circuit Court yog ib lub voj voog uas muab kev tswj cov teeb liab mus rau lub ntsiab Circuit Court ntawm asynchronous lub cev muaj zog fais fab mov (voltage, zaus adjustable), uas muaj zaus thiab voltage "kev khiav hauj lwm circuit", lub ntsiab Circuit Court "voltage, tam sim no nrhiav tau circuit", motor "speed" kuaj xyuas Circuit Court, "tsav Circuit Court" uas ua kom lub zog tswj lub teeb liab ntawm kev ua haujlwm Circuit Court, thiab "tiv thaiv Circuit Court" ntawm inverter thiab lub cev muaj zog.
(1) Arithmetic Circuit Court: sib piv cov kev ceev sab nraud, lub zog thiab lwm cov lus qhia nrog cov cim tam sim no thiab qhov hluav taws xob ntawm qhov ntsuas hluav taws xob los txiav txim siab qhov tso zis voltage thiab zaus ntawm inverter.
(2) Voltage thiab tam sim no nrhiav tau Circuit Court: cais los ntawm lub ntsiab voj muaj peev xwm mus ntes voltage, tam sim no, thiab lwm yam.
(3) Tsav Circuit Court: lub Circuit Court uas tsav cov khoom siv hluav taws xob tseem ceeb. Nws yog cais los ntawm kev tswj Circuit Court, kom lub ntsiab Circuit Court ntaus ntawv yog qhib thiab tua.
(4) Kev tshawb nrhiav ceev Circuit Court: lub teeb liab ntawm lub ntsuas ntsuas ceev (TG, PLG, thiab lwm yam) ntsia ntawm lub tshuab asynchronous lub cev muaj zog yog lub teeb liab ceev, xa mus rau lub voj voog ua haujlwm, thiab lub cev muaj zog tuaj yeem khiav ntawm cov lus txib ceev raws li cov lus qhia thiab kev suav.
(5) Kev tiv thaiv Circuit Court: kuaj xyuas qhov voltage, tam sim no, thiab lwm yam ntawm lub ntsiab Circuit Court, thiab thaum muaj qhov txawv txav xws li overload lossis overvoltage tshwm sim, txhawm rau tiv thaiv kev puas tsuaj rau lub inverter thiab asynchronous lub cev muaj zog.