150KW Solid State High Frequency Compact Pipe Welder

Ngenxa yokuthi i-thyristor rectifier isebenzisa isilawuli sokushintsha kwesigaba, ukulawulwa kwamandla ukulungisa i-voltage ngokushintsha i-engeli yokucupha. Isekhethi imunca i-sine wave ene-engeli engekho kugridi yamandla, futhi ishiya enye ingxenye ye-sine wave ene-engeli engekho kugridi yamandla. Ngokusobala, ingxenye yesobunxele iqukethe inani elikhulu lama-harmonics. Ngesikhathi esifanayo, isici samandla siphansi ngenxa yezigaba ezahlukene ze-voltage kanye nezamanje (i-voltage ephumayo ye-DC ephansi, I-factor yamandla ephansi).

Isibalo setiyetha nokuhlola kubonisa ukuthi uma i-engeli yokucupha yesigaba ezintathu esilawulwa ngokugcwele esilungisa ibhuloho inguziro, noma uma kusetshenziswa isilungisi sebhuloho esingalawuleki esakhiwa ama-diode, i-harmonic ekhiqizwayo incane kakhulu futhi isici samandla siphezulu kakhulu (ngaphezu kwalokho 0.9). Kodwa-ke, ekusebenzeni okungokoqobo, kufanele kube nomsebenzi wokulungisa ngokuqhubekayo i-DC voltage (okungukuthi, ukulungisa amandla okukhipha), futhi okokusebenza ngeke kusebenze ku-voltage egcwele unomphela. Ukuze wenze okokusebenza kube nobuncane be-harmonic, isici samandla esiphezulu kakhulu namandla okukhiphayo alungisekayo, enye idivayisi elawula ugesi kufanele yengezwe ngemuva kwebhuloho elingalawuleki lokulungisa.

Ngakho-ke, ngemva kocwaningo olunzulu, sithuthukise ubuchwepheshe bokulungisa izinombolo futhi sathola ilungelo lobunikazi likazwelonke (zl201520767232. X).

Izigaba ezintathu zezintambo ezine 380V, 50Hz AC ezisetshenziswa embonini evamile ilungiswa "ngebhuloho lezigaba ezintathu" (elihlanganiswe ama-ZP diode ayisithupha kanye nokulungiswa kwesikhathi esisodwa) ukuze libe yi-300Hz pulsating DC, bese liguqulwa libe yi-DC ebushelelezi ngemva kokuhlunga kwe-LC. (eyakhiwe ukusabela kanye namandla), bese iguqulwa ibe yi-AC enefrikhwensi elawulekayo kanye ne-voltage engaphezu kweshumi kHz ngemuva kokuguquguquka kanye nokulawulwa kwamandla kagesi ngebhuloho le-inverter lesigaba esisodwa (elakhiwe ngamaqembu amane ama-IGBTs), Bese iba yi-low-voltage pulsating. I-DC ngemva kokwehla kwe-high-frequency transformer kanye nokulungiswa kwe-diode (ukulungiswa kwesibili), bese iba yi-DC enevoltage ephansi ebushelelezi ngemva kokusabela noma ukushelela nokuhlunga kwe-capacitor.

Ibhuloho le-inverter lesigaba esisodwa elakhiwe yi-IGBT linemisebenzi emibili: inverter kanye nokulawulwa kwamandla kagesi. Ngamanye amazwi, i-voltage ephumayo ingalungiswa ngokuya ngezidingo zokukhiqiza ngenkathi ihlehlisa i-DC iye ku-AC.

I-high-frequency transformer yamukela i-ferrite njengento yokuqhuba kazibuthe, futhi isilinganiso esiyinhloko sokuguqulwa siklanyelwe ngokuvumelana nezidingo, ngevolumu encane, izindleko eziphansi kanye nokusebenza kahle okuphezulu kokuqhuba.

I-TENYES 150KW Solid State High Frequency Compact Pipe Welder enobuchwepheshe bokulungisa izinombolo be-PWM inezinzuzo ezilandelayo:

1)Isici samandla aphezulu: isici samandla ≥ 0.92, asikho isidingo sokungeza okokusebenza kwesinxephezelo samandla asebenzayo.

I-2) Ukungcola okuphansi kwe-harmonic: ngokuvamile, asikho isidingo sokwengeza imishini yokwelapha eyengeziwe

I-3) Amandla okukhiphayo azinzile: i-ripple ephumayo ≤ 0.2%, futhi i-burr yepayipi elishiselwe ifana kakhulu.

I-4) Isivinini sokuvikela esisheshayo: isikhathi sokuvikela ukuvala iphutha ≤ 10 μ S. Izisetshenziswa zithembeke kakhulu.

5) Ukusebenza kahle kwamandla aphezulu: ngoba ukulahleka kwamandla asebenzayo kuncishisiwe, ukusebenza kahle kwawo wonke umshini kuyathuthukiswa.