Nidaamka xakamaynta harmonic ee foornada dhalinta dhalaalaysa

Foornada dhalaalka ee Induction: waa qalab koronto oo u beddela 50HZ soo noqnoqoshada tamarta beddelka hadda u beddeleysa soo noqnoqoshada dhexdhexaadka ah (300HZ ee ka sarreeya 1000HZ), kaas oo u beddela soo noqnoqoshada awoodda saddex-waji beddelka hadda toos ah ka dib hagaajinta, ka dibna u beddela hadda toos ah dhexdhexaad la hagaajin karo inta jeer ee hadda jirta ee sahayda Soo noqnoqoshada dhexdhexaadka ah ee beddelka hadda socda ee ku qulqulaya capacitor-ka iyo gariiradda induction waxay abuurtaa xadhkaha magnetic cufnaanta sare ee gariiradda induction, oo gooya walxaha birta ah ee ku jira gariiradda induction, kaas oo soo saara qulqul weyn oo birta ah. maaddo.

1. Mabda’a shaqada ee foornada dhalaalka induction

Foornada dhalaalaysa induction waxay inta badan ka kooban tahay sahay koronto, gariiradda induction iyo qolof ah oo ka samaysan walxo celinaya gariiradda induction. Qalabku waxa uu ka kooban yahay lacag bir ah, taas oo u dhiganta dabaysha labaad ee transformerka. Marka gariiradda induction lagu xidho sahayda korantada AC, goob birlabeed beddelan ayaa ka soo baxaysa gariiradda induction. Maadaama kharashka laftiisa uu sameeyo wareeg xiran, dabaysha labaad waxa lagu gartaa hal leexasho oo keliya oo xiran. Sidaa darteed, hadda la kiciyay ayaa isla wakhtiga lagu soo dallaci doonaa, iyo marka kan la kiciyay uu dhex maro kharashka, kharashka waa la kululeeyaa si kor loogu qaado dhalaalkiisa.

Foornada dhalaalaysa induction waxay isticmaashaa sahay koronto dhexdhexaad ah si ay u abuurto goob magnet ah oo soo noqnoqota, kaas oo soo saara qulqulo qulqulaya gudaha maaddada ferromagnetic oo dhalisa kulayl, si loo gaaro ujeedada kululaynta walxaha. Foornada dhalaalaysa induction waxay isticmaashaa sahay koronto dhexdhexaad ah oo ah 200-2500Hz si ay u kululaato induction, dhalaalid iyo ilaalinta kulaylka. Foornada dhalaalka induction waxaa inta badan loo isticmaalaa dhalaalidda birta kaarboonka, birta daawaha, birta gaarka ah, waxaana sidoo kale loo isticmaali karaa dhalaalidda iyo kuleylinta biraha aan biraha ahayn sida naxaasta iyo aluminium. Qalabku cabbirkiisu wuu yar yahay. , Miisaanka fudud, waxtarka sare leh, isticmaalka tamarta hooseeya, dhalaalidda degdega ah iyo kuleylka, xakamaynta fudud ee heerkulka foornada, iyo waxtarka sare ee wax soo saarka.

2. Sifooyin isku mid ah oo ay dhaliso foornada dhalaalka induction

Guud ahaan, 6-pulse foornooyinka dhalaalka induction induction waxay inta badan soo saaraan 5th iyo 7th harmonics sifada; 12-wadnaha aaladaha beddelka, waxay inta badan soo saaraan 5th, 11th, iyo 13th harmonics sifada. Xaaladaha caadiga ah, aaladaha beddelayaasha yaryar waxay isticmaalaan 6 garaac, kuwa waaweynna waxay isticmaalaan 12 garaac. Tusaale ahaan, dhinaca labaad ee labajibbaaran ee beddelka foornada waxay ku xiran tahay nooca Y / △ si loo gaaro wareegga wareegga 30 darajo; ama dhinaca korantada sare ee labada transformers ee foornada waxay qaataan saddex xagal fidinta ama zigzag tallaabooyinka beddelka wejiga sida isku xirka nooca iyo isku xirka xiddigta-geeska labaad ee labaad waxay sameeyaan koronto joogto ah oo 24-pulse ah si loo yareeyo heerka saameynta iswaafajinta shabkada korantada.

Saddex, khataraha iswaafajinta

Foornada dhalaalaysa induction waxay abuurtaa tiro badan oo harmonics ah marka la isticmaalayo, taas oo sababta wasakhaynta iswaafajinta halista ah ee xadhkaha korantada. Harmonics-ku waxay yareeyaan waxtarka gudbinta tamarta korantada iyo ka faa’iidaysiga, waxay keenaan qalabka korantada si ay u kululaadaan, abuuraan gariir iyo buuq, waxayna sameeyaan gabowga dahaarka, waxay yareeyaan nolosha adeegga, iyo xitaa cillad ama gubasho; harmonics waxay keeni kartaa dhawaaq isbarbar socda ama dhawaaq taxane ah oo ku jira nidaamka korontada. Kordhi nuxurka iswaafajinta, taasoo keenaysa in qalabka magdhawga capacitor iyo qalabka kale ay gubaan. Haddii aan la isticmaali karin magdhow koronto, waxaa dhici doona ganaaxyo koronto ah, taasoo keenaysa kororka biilasha korontada. Harmonics sidoo kale waxay sababi kartaa cilladaha ilaalinta gudbinta iyo aaladaha tooska ah, taasoo keenta jahawareer xagga cabbiraadda tamarta korantada. Wixii ka baxsan nidaamka korantada, iswaafajinta waxay u keeni doontaa faragalin ba’an qalabka isgaarsiinta iyo qalabka elektaroonigga ah. Sidaa darteed, hagaajinta tayada tamarta foornooyinka dhalaalidda kicinta waxay noqotay diiradda ugu weyn ee jawaabta.

Afar, xakamaynta foornada dhalaalaysa induction

Taxanaha LBAPF-ZP ee filtarrada firfircoon ee gaarka ah ee qalabka inta jeer ee dhexdhexaadka ah ayaa si gaar ah ugu habboon nidaamyada rarka foornada dhalaalaysa ee leh nuxur aad u sarreeya. Waxay xallin kartaa kuleylinta iyo kuleylka nidaamka halka culeysku ku yaal, kororka qaylada, fashilka beddelka magdhowga capacitor, iyo qaybaha wareegga burburka iyo cilladaha ay sababaan qulqulka is-waafajinta xad-dhaafka ah sida burburka.

Taxanaha LBAPF-ZP ee filtarrada firfircoon ee gaarka ah ee qalabka soo noqnoqda dhexdhexaadka ah ayaa lagu rakibay gadaasha magdhowga tamarta falcelinta iyo xagga hore ee rarka. Heerka shaandhaynta iswaafajinta ee culeyska dambe waa mid aad u sarreeya ilaa 90%.