Marka laga yimaad fikradda matoorka, matoorka DC waa matoor DC ah oo tamarta korantada DC u beddela tamar farsamo, ama koronto-dhaliye u beddela tamarta koronto ee DC;Mashiin koronto oo wareeg ah oo wax soo saarkiisu yahay tamarta korantada ee DC waxaa loo yaqaan ' DC motor', kaas oo ah tamar matoor ogaanaya beddelka wadajirka ah ee tamarta korontada DC iyo tamarta farsamada.Marka uu u shaqeeyo sida matoor, waa matoor DC ah, kaas oo tamarta korantada u beddelaya tamar farsamo;marka uu u shaqeeyo sida koronto-dhaliye, waa koronto-dhaliyaha DC-ga, kaas oo tamarta makaanikada u beddela tamarta korantada ee DC.

Matoorada wareegta, qulqulka iswaafajinta ama danab iswada leh waxay sababi doonaan khasaare dheeraad ah oo ku yimaada dabaylaha stator, wareegyada rotor-ka iyo koodhka birta, taasoo keenaysa hoos u dhaca guud ahaan waxtarka beddelka tamarta matoorka.Harmonic hadda waxay kordhin kartaa isticmaalka naxaasta ee matoorka, sidaas darteed culeyska is-waafajinta daran, matoorku wuxuu dhalin doonaa kulayl gudaha ah, kordhinta gariirka iyo qaylada, iyo kor u kaca heerkulka, taasoo keentay da'da da'da ee lakabka dahaarka iyo hoos u dhaca nolosha qalabka.Taageerayaasha qaar ayaa waydiiyay, Matoorada AC waxay yeelan doonaan iswaafajin, haddii matoorada DC ay sidoo kale leeyihiin dhibaatadan?

Baaxadda iyo jihada hadda beddelka ahi waxa ay isbeddeli doontaa wakhti wakhti ka dib, celceliska qiimaha socda ee hal wareeg waa eber, qaab-dhismeedka mawjadaduna inta badan waa sinusoidal, halka hadda toosan aanu isbeddelin xilliyo.Kala beddelka hadda waa saldhig birlab ah, kaas oo si farsamaysan loo soo saaro.Dhaqdhaqaaq kasta oo beddela waa inuu lahaadaa sifooyin elektromagnetic ah, oo uu jiro walxo xudun ah oo birlab ah.Hadda tooska ah waxay ku salaysan tahay kiimiko, ha ahaato photovoltaic ama aashitada rasaasta, inta badan waxay u badashaa tamarta kiimikada tamar koronto.

Beddelka hadda beddelka iyo hadda tooska ah waa iyada oo loo marayo hagaajin iyo shaandhayn si loo helo qulqulka tooska ah ee hadda jira.Dhaqdhaqaaqa tooska ah ayaa loo beddelaa hadda beddelka ah iyada oo loo marayo oscillation iyo rogis, iyo hirarka beddelka sene ee kala duwan ayaa la helaa.

Sababaha ugu muhiimsan ee jiilka harmonics waxaa ka mid ah qalloocinta asaasiga ah ee hadda jira iyo jiilka harmonics sababtoo ah korantada sinusoidal ee lagu dabaqo culeyska aan tooska ahayn.Culayska ugu muhiimsan ee aan tooska ahayn waa UPS, sahayda korantada beddeleysa, rectifier, beddelaha soo noqnoqda, rogayaasha, iwm. Isku-dhafka matoorka DC-gu wuxuu inta badan ka yimaadaa sahayda korontada.Sababta iswaafajinta AC rectifier iyo qalabka korantada DC waa in qalabka toosiye uu leeyahay danab waalka ah.Marka uu ka yar yahay korantada waalka, hadda waa eber.

Si loo helo sahay koronto oo xasilan oo DC ah oo loogu talagalay qalabkan noocan oo kale ah, walxaha kaydinta tamarta sida capacitors filter iyo filter inductors ayaa lagu daraa qalabka hagaajinta si loo kordhiyo korantada waalka loona kiciyo jiilka harmonics.Si loo xakameeyo tamarta iyo hadda qalabka korantada ee DC, thyristor waxaa loo isticmaalaa qalabka hagaajinta, taas oo ka dhigaysa wasakhowga isku midka ah ee qalabkan oo kale mid aad u daran, iyo nidaamka iswaafajinta waa mid hooseeya.

By Jessica