Transformer-ka ugu weyn ee nidaamka qaybinta tamarta shiidalka waa koronto-dhaliye leh koronto dhan 0.4/0.66/0.75 kV, culeyska ugu weynina waa matoor weyn oo DC ah.Sababtoo ah gudbinta korantada iyo qaybinta qalabka toosiyaha extruder-ka isticmaalaha guud ahaan waxay isticmaashaa laba nooc oo ah tignoolajiyada six-pulse rectifier, kaas oo soo saara xaddi gaar ah oo garaaca garaaca wadnaha (6N+1) ee heerar kala duwan dhinaca hoose-voltage, iyo inta badan (6N). +1) dhinaca korantada sare.12N+1) Muuji laba iyo toban qaab toosiye hal garaac ah.
Burburka harmonics injineernimada korantada ee shabagga korantada waxay ku xiran tahay waxyeellada korantada shaqaynaysa ee mashiinada iyo qalabka ku jira shabagga korantada, taas oo ah, korantada shaqada ee iswaafajinta waxay ka badan tahay heerka ay qaadi karaan mashiinada iyo qalabku.Kooxda sahayda korontadu waxay mas'uul ka tahay garaaca wadnaha hadda shaqeeya ee shabakadda korontada, iyo isticmaalka tamarta ayaa mas'uul ka ah soo bandhigida hadda is-waafajinta ee software-ka nidaamka.
Marka loo eego waayo-aragnimada injineernimada ee shirkadeena roodhida dhaqameed ee si ay ula macaamilaan harmonics, shaqada, nidaamka qaybinta korantada hooseeya ee isticmaalaha, 5th harmonic content hadda wuxuu gaarayaa 20% ~ 25%, 7th harmonic hadda wuxuu gaarayaa 8% iyo hadda is-waafajinta waxaa lagu duraa koronta sare Mawduuca harmonic ee nidaamka korantada ayaa si degdeg ah u kordha, taas oo keenta mawjada qaab-dhismeedka korantada sahayda, waxay kordhisaa luminta fiilooyinka iyo qalabka korantada, waxay keentaa isticmaalka tamarta dheeraadka ah, waxay saamaysaa shaqada caadiga ah ee kuwa kale. qalabka korantada ee shabkada korantada, waxayna yaraynaysaa tayada korantada ee shabakada korontada., taas oo saameynaysa amniga korantada ee shabakada korantada oo keenaysa khataraha amniga hawlgalka badbaadada leh ee qalabka.
Si loo hubiyo hawlgalka caadiga ah ee qalabka, awood la isku halleyn karo iyo badbaadinta tamarta ee nidaamka korontada, waxaa lagama maarmaan ah in la qaado tallaabooyin farsamo si loo xakameeyo hadda harmonic qalabka iyo tixgelin magdhow ee awoodda falcelinta aasaasiga ah.Sida laga soo xigtay heerarka tayada shaqada danab alaabta ee dalkeyga koronto iyo natiijooyinka cilmi sayniska ee gacanta hadda garaaca wadnaha ee dalal kala duwan oo adduunka ah, sifooyinka farsamo ee shaandhaynta danab hoose iyo magdhow firfircoon ayaa la qaatay, iyo siddo shaandhada shaandhada waa siday u kala horreeyaan. loo dejiyay qulqulka garaaca sifada ee uu keeno toosiyaha si uu u dheefshiido una nuugo qulqulka iswada leh.Intaa waxaa dheer, waxay leedahay shaqooyinka magdhowga culeyska falcelinta mawjada aasaasiga ah iyo badbaadinta tamarta korantada.
Qalabka anti-harmonic ee ay soo saartay Zhejiang Hongyan Electric Co., Ltd. waxay leedahay sifooyinka isbeddelka firfircoon ee culeyska.Iyadoo si wax ku ool ah loo wanaajinayo tayada korantada, qodobka korantada iyo badbaadinta tamarta ee shabakada korantada, waxay sidoo kale wanaajin kartaa isku halaynta guud ee nidaamka korantada iyo hufnaanta hawlgalka qalabka, iyo dhimista kharashyada hawlgalka iyo Dhimista kharashka dayactirka qalabka, dheeraynta qalabka. nolosha, oo faa'iidooyin dhaqaale oo muuqda u keena isticmaaleyaasha.
Mashiinnada duubista DC guud ahaan waxay isticmaalaan matoorrada DC, iyo qodobka korontadu inta lagu guda jiro duubista waa mid aad u hooseeya, guud ahaan qiyaastii 0.7.Mid ka mid ah sifooyinkeeda ugu waaweyn waa wareeg shaqo oo gaaban, xawaare dheereeya, culeyska saamaynta, iyo isbedbeddellada aan shaqaynayn ee waaweyn.Tuujiyaasha korontada ayaa sidoo kale sababi kara isbedbedel xoog leh oo ku yimaada korantada korantada, taasoo keenaysa nalalka iyo shaashadaha TV-ga inay liibaanaan, taasoo keenta daal muuqaal ah iyo xanaaq.Intaa waxaa dheer, waxay sidoo kale saameyn ku yeelan doonaan hawlgalka siman ee qaybaha thyristor, qalabka ama qalabka wax soo saarka, iyo xitaa sababa shilalka badbaadada.Magdhawga guud ee capacitor bank ma la socon karo isbeddelada rarka wakhtiga dhabta ah si loo ilaaliyo magdhow macquul ah.Qalabka makaanikada ee meelaha lagala xiriiro ayaa saameyn ku yeeshay isbeddelka joogtada ah, taas oo saameyn weyn ku leh shabakada korontada.
Qalabka duubista ee DC wuxuu qaataa gudbinta korantada ee tignoolajiyada hagaajinta thyristor.Marka loo eego tirada garaaca garaaca wadnaha, waxa loo qaybin karaa 6-pulse rectification, 12-pulse to 24-pulse.Marka lagu daro qodobka awoodda hooseeya, iswaafajinta nidaamka sare ayaa la soo saari doonaa inta lagu jiro shaqada.Guud ahaan, mishiinnada duubista DC ee gudaha Tiknoolajiyada hagaajinta garaaca wadnaha ee 6 ayaa la isticmaalaa, markaa iswaafajinta nidaamka sare leh ee ay dhaliso dhinaca dabaysha korantada yar ee transformer-ka waxay inta badan yihiin 11 iyo 13 dhinaca korantada hoose ee transformerka leh 2 dabaylaha samayn iyo yn habka wadajirka ah, 5th iyo 7aad High-dalabka harmonics la dhimi karaa on dhinaca sare-voltage ah, sidaas 11th iyo 13th qaybaha harmonic-amar-sare-sare inta badan waxaa lagu soo bandhigay dhinaca sare-voltage.Saamaynta ugu weyn ee qulqulka garaaca garaaca wadnaha ee heerka sare ah ee shabakada korantada waxaa ka mid ah kuleylinta iyo gariirka qalabka korantada, luminta korodhka, nolosha adeeg gaabisay, saamaynta isgaadhsiinta, khaladka hawlgalka thyristor, khaladka hawlgalka ee aaladaha ilaalinta gudbinta qaarkood, gabowga iyo waxyeelada lakabka dahaarka korontada iwm.
Xalka aad ka dooran karto:
Xalka 1 Maaraynta dhexe (ku dabaqi karaan martigaliyayaasha awooda yar, mugga bidix iyo midig)
1. Qabso laanta kontoroolka iswada leh (3, 5, 7 filtarrada) + laanta habaynta awooda falcelinta.Ka dib marka la geliyo aaladda magdhowga shaandhada, xakamaynta iswaafajinta iyo magdhowga tamarta falcelinta ee nidaamka sahayda korantadu waxay buuxinaysaa shuruudaha.
2. Isticmaal wareegga wareegga ah ee xakameynaya magdhowga aan waxtarka lahayn ee harmonics, iyo ka dib markaad isku xirto qalabka magdhowga shaandhada, ka dhig qodobka korontadu inuu buuxiyo shuruudaha
Xulashada 2 Daawaynta deegaanka (waxay khusaysaa 12-pulse rectifier Transformer daawaynta dhinaca korantada hoose)
1. Qabso ka-hortagga is-dhaafsiga (5th, 7th, filter 11th order), si toos ah ula socoshada marka mishiinka duuban yahay, xalliyo harmonics goobta, ma saameynayso hawlgalka qalabka kale inta lagu jiro wax soo saarka, iyo harmonics ma gaaraan heerka ka dib markii la hawlgaliyay.
2. Isticmaalka shaandhaynta firfircoonida (shaandhaynta harmonics dynamic) iyo shaandhaynta shaandhaynta (5th, 7th, 11th order shaandhaynta), harmonics ka dib shidku maaha ilaa heerka.
Waqtiga boostada: Abriil-13-2023