Iyadoo baahida horumarinta warshadaha, si loo yareeyo culeyska nidaamka iyo badbaadinta tamarta, tiro badan oo ahbeddelka inta jeer ee variable waxaa loo isticmaalaa munaasabadaha warshadaha.Isticmaalkabaddaliyaha inta jeer dhab ahaantii waxay gaari kartaa saamaynta tamarta-badbaadinta, laakiin waxay sidoo kale keentaa dhibaatooyin kale sida harmonics.Waxaan la kulanay goob aad caadi u ah halkaas oo tiro badan oo rogaal-celiyeyaal sare ah loo adeegsaday xakamaynta bamka biyaha.Hawlgalka tiro badan oo ah qalabka inverter waxay keenaysaa qallooc halis ah oo habaysan ee nidaamka, kaas oo si dhab ah u saameeya hawlgalka nabdoon oo xasilloon ee nidaamka.
Laga soo bilaabo qaabka tijaabada goobta, nidaamka qallooca ee ugu weyn waa 5, 7 harmonics.Ka hor hawlgalka eeAPF, wadarta guud ee heerka qallooca is-waafajinta nidaamka ayaa gaadhay 39.5%.Kadib hawlgalkafilter harmonic firfircoon, wadarta guud ee heerka qallooca is-waafajinta ee nidaamka ayaa hoos loo dhigay ilaa 6%, qaab-dhismeedka mawjada ayaa dib loo soo celiyay si caadi ah, iyo iswaafajinta amar kasta si weyn ayaa loo dhimay.Laga soo bilaabo shaxanka 1 ilaa shaxanka 4, waxaan si cad u arki karnaa in saameynta xakamaynta harmonic ka dib isticmaalkafiltar firfircoonwaa mid aad u muuqda oo waxtar leh.
Waxyeellada harmonics waa mid aad u daran.Harmonics-ku waxay yareeyaan waxtarka wax-soo-saarka, gudbinta iyo ka faa'iidaysiga tamarta korantada, kulaylka qalabka korontada, waxay soo saaraan gariir iyo buuq, waxayna sameeyaan gabowga dahaarka, waxay soo gaabinayaan nolosha adeegga, iyo xitaa cillad ama gubasho.Harmonics-ku waxa ay sababi karaan resonance is barbar socda ama resonance taxane ah oo ku jira nidaamka korantada, kaas oo waynaynaya waxa ku jira oo sababa capacitor-ka iyo qalabka kale in ay gubaan.Harmonics sidoo kale waxay sababi kartaa si xun u shaqaynta ilaalinta gudbinta iyo aaladaha tooska ah, taasoo keenta jahawareer xagga cabbiraadda tamarta korantada.Ka baxsan nidaamka korantada, iswaafajinta waxay sababi kartaa faragelin ba'an qalabka isgaarsiinta iyo qalabka elektaroonigga ah.
Thefilter awood firfircoonwaxa uu ku xidhan yahay nidaamka korantada ee is barbar socda, iyada oo loo marayo transformer-ka hadda jira ee dibadda si loo muunadeeyo saddexda weji ee hadda jira.Qaybta kontoroolka ugu weyn waxay xisaabisaa magdhowga loo baahan yahay qiimaha hadda oo u dir amar IGBT, IGBT si firfircoon u hagaajiso inta jeer ee beddelka si kor loogu qaado waxqabadkaAHFsi loo damiyo hadda harmonic.
Waqtiga boostada: Jul-28-2023