foornada dhalinta dhalaalaysa mabda’a shaqada – resonance barbar socda

korontada soo noqnoqda

Korontada foornada dhalaalaysa induction waxay qabataa dhawaaqa is barbar socda awoodda soo noqnoqda dhexdhexaadka ah sahayda, taas oo ah codsiga ugu horreeya ee sahayda tamarta inta jeer ee dhexdhexaadka ah ee Shiinaha. Waa aalad beddesha soo noqnoqoshada oo u beddela tamarta korantada ee saddex-waji ah ee tamarta korantada oo u beddesha hal-waji dhexdhexaad ah tamarta korantada. Faa’iidada ay leedahay ayaa ah in ay leedahay laqabsiga culeyska xooggan waxaana loo isticmaali karaa sidii koronto ahaan foornada dhalinta dhalaalaysa .

Jaantuska 2-1 wuxuu muujinayaa jaantuska mabda’a ee wareegga ugu muhiimsan ee isku midka ah ee isbarbardhigga resonant dhexdhexaadiyaha korontada, kaas oo inta badan ka kooban yahay go’doominta (DK), xiriiriyaha AC (ama korantada wareegga KM), inductance line soo galaya (L1 ~ L3) , iyo lammaane degdeg ah (FU), toosiye (VT1 ~ VT6), reactor smoothing (LF), inverter (VT7 ~ VT10), load resonant is barbar socda (L, C) . Dib-u-habeeyuhu waxa uu u beddelaa soo noqnoqoshada tamarta saddex-waji ah oo u beddeleysa hadda toos ah; reactor-ka fududeeya waxa loo isticmaalaa in lagu shaandheeyo ripple-ka hadda la saxay iyo in la go’doomiyo danabyada kala duwan ee u dhexeeya toosiyaha iyo rogaha; rogrogaysku waxa uu hadda toos u beddelayaa hal-waji dhexdhexaad ah oo joogto ah oo beddelka hadda; load resonant barbaro ka kooban inductor iyo capacitor magdhow ah si fiican u la qabsan kara isbeddelka guryaha load inta lagu jiro habka kululaynta.

Jaantus 2-1 Isbar-bar yaaca dhawaaqa dhexe ee soo noqnoqda ee soo noqnoqda wareegga muhiimka ah

(1) Saddex-waji-buundo-nooca si buuxda loo kantaroolo wareegga toosiyaha wareegga wareegga wareegga wareegga isbarbar-dhigga ee soo noqnoqda ee soo noqnoqda ee isku-dhafka ah wuxuu qaataa saddex-waji-buundo-nooca si buuxda loo xakameeyo wareegga wareegga. Mabda’a ayaa lagu muujiyay sawirka 2-2. Mar haddii reactor-ku-fududeeyaha (LF) uu leeyahay inductance weyn oo culaysku yahay culays wax-soo-saar leh, culayska hadda soo-saarka toosiyuhu waa mid joogto ah oo toosan. Marka aW60 °, qaab-dhismeedka mawjada wax soo saarka ee wareegga rectifier waa la mid ah kan culayska iska caabin ah, iyo sharciga conduction la mid ah kan load resistive ah. Marka a> 60 ° , ay sabab u tahay saamaynta inductor LF , thyristor weli waa la shid doonaa ka dib markii korontadu ay ka gudubto eber, ilaa thyristor soo socda uu kiciyo inuu shido, si aag taban u muuqataa in qaab mawjada koronto soo saarka rectifier, laakiin wax soo saarka rectifier hadda waa Hal heer

Silig Marka xagasha kontoroolku kordho 90. Marka meelaha togan iyo kuwa taban ee waveform danab wax soo saarka ay siman yihiin, celceliska qiimaha wax soo saarka Ud=0. Marka a> 90 °, wareegga toosiyaha wuxuu ku shaqeeyaa xaalad shaqaynaysa inverter. Baaxadda wareegga wareegga ee wareegga toosiyaha ee tamarta soo noqnoqda ee dhexdhexaadka ah waa 0 ° ~ 150 °.

(2) Wareegga rogayaasha Jaantuska 2-3 waa jaantuska jaantuska wareegga wareegga isbarbar-dhigga. Capacitor-ka C ee wareegga culeyska wuxuu ku xiran yahay isbarbardhigga inductor gariiradda L, iyo is-dhaafsigu wuxuu ku saleysan yahay mabda’a isbarbar-dhigga, sidaas darteed waxaa loo yaqaannaa wareegga is-beddelka isbar-bardhigga. Korontada DC Ud ee ay bixiso thyristor si buuxda loo xakameeyo wareegga toosiyaha ayaa si joogto ah la isku hagaajin karaa, iyo wareegga isbarbar yaaca ayaa u rogaaya awoodda DC inta jeer ee dhexdhexaadka ah ee AC ee culeyska. Xadhiga dhinaca DC wuxuu leeyahay shaandheyn weyn oo LF ah, marka waa beddele-nooca hadda. Sababtoo ah inta jeer ee hawlgalka waa mid aad u sarreeya, thyristors ee 4 gacmood ee buundada wareegga wareegga waxay qaataan thyristors degdeg ah. L7 ~ L10 waa inductance inverter thyristor, kaas oo loo isticmaalo in lagu xaddido heerka sare u kaca thyristor hadda inta lagu guda jiro socdaalka.

Jaantuska 2-3 jaantuska jaantuska wareegga wareegga isbarbar-dhigga