Umehluko phakathi imishini yefrikhwensi ephezulu kanye nomshini wokuvama amandla

Imishini yamafrikhwensi aphezulu isebenzisa ubuchwepheshe bokushintsha imvamisa ephezulu ukuze imiselele i-UPS yamafrikhwensi ashintsha amandla kuma-rectifiers nama-inverters anezici zokushintsha imvamisa ephezulu, eyaziwa njengemishini yamafrikhwensi aphezulu. Imishini ye-high-frequency mincane ngosayizi futhi isebenza kahle kakhulu. Umshini wefrikhwensi yamandla: I-UPS esebenzisa isiguquli sefrikhwensi yamandla njengesilungisa kabusha nezingxenye ze-inverter yaziwa kakhulu ngokuthi umshini wokuvama kwamandla. , Umshini we-high-frequency awunayo i-transformer yokuhlukanisa, futhi umugqa wawo we-zero ophumayo une-high-frequency current, ikakhulukazi kusukela ekuphazamisekeni kwe-harmonic yegridi yamapayipi, i-pulsating current ye-UPS rectifier kanye ne-high-frequency inverter, kanye ukuphazamiseka kwe-harmonic komthwalo, njll. I-voltage yokuphazamiseka ayikona nje kuphela Amanani aphezulu futhi anzima ukuwaqeda. Kodwa-ke, i-voltage engu-zero-ground ephumayo yomshini wokuvama amandla iphansi, futhi ayikho ingxenye ye-high-frequency, ebaluleke kakhulu ekuvikelekeni kokuxhumana kwenethiwekhi yekhompyutha. Ukukhishwa komshini we-high-frequency akuhlukaniswa yi-transformer. Uma idivayisi yamandla e-inverter ifushane, i-voltage ephezulu ye-DC ebhasini le-DC (DC BUS) isetshenziswa ngokuqondile emthwalweni, okuyingozi yokuphepha, kodwa umshini wokuvama amandla awunayo le nkinga. Umshini wefrikhwensi yamandla unekhono eliqinile lomthelela wokulwa nomthwalo.

Imishini yamaza aphezulu ibhekisela emshinini we-X-ray one-high-voltage generator yokusebenza imvamisa engaphezu kuka-20kHz, futhi umshini wamafrikhwensi wamandla ubhekisela emshinini we-X-ray one-high-voltage generator yokusebenza imvamisa engaphansi kuka-400Hz. Umshini wokuvama kwamandla une-ripple ye-sine engu-100Hz ngemva kokukhushulwa nokulungiswa kwamandla kagesi angu-50Hz. Ngemuva kokuhlunga, kusekhona ngaphezu kuka-10% we-ripple. Umshini osebenzisa imvamisa ephezulu unemvamisa ephezulu yokusebenza, futhi i-voltage ngemuva kokulungiswa kwamandla kagesi aphezulu ngokuyisisekelo i-DC engashintshi, i-ripple ingaba ngaphansi kuka-0.1%. Ama-voltage ahlukene anamandla kagesi ahambisana nemishayo yama-electron yamandla ahlukene, ngaleyo ndlela akhiqize ama-X ray amaza ahlukene. Uma i-spectrum ye-X-ray iba yinye, iyancipha ukusakazeka, futhi isithombe sicacile. I-spectrum yomugqa ophumayo womshini wokuvama kwamandla iyinkimbinkimbi, inani lama-X-reyi emvamisa yesici ngesikhathi esifanayo lincane, imigqa ehlakazekile elahlekile miningi, futhi isithombe sifiphalisiwe. Umshini osebenzisa imvamisa ephezulu une-spectrum elula ephumayo, imigqa ehlakazekile encane enganhlanhlathi, izithombe ezicacile, futhi wehlisa inani lomugqa ophumayo ngaphezu kuka-50% uma kuqhathaniswa nomshini wokuvama kwamandla.