iimveliso

I-Introduction Power Systems eyaveliswa phambi kukaNovemba 1994 yasebenzisa iModyuli yokuBonelela ngoMbane enombala omnyama kwaye yenziwa yiNkampani yeCherokee. IModyuli yokuBonelwa koMbane ine-crest factor ephezulu kuneModyuli yoBonelelo lwaMandla esetyenziswa ngoku kwiNkqubo yaMandla. Imodyuli yangoku yoNikezelo lwaMandla inombala wesilivere kwaye yenziwe yiBikor Corporation. Ukuveliswa kwangaphambili kweModyuli yokuBonelelwa koMbane Imodyuli ye-crest ye-Cherokee Power Supply Module enombala omnyama yi-2.2. Oku kuthetha ukuba umzobo wangoku ovela kumgca wamandla we-ac awuyonto ye-sinusoidal kodwa inexabiso eliphakamileyo le-2.2 ngokuphinda-phinda ixabiso le-rms. Umthwalo womgca unexabiso eliphezulu langoku le-1.414 ngokuphindaphinda ixabiso le-rms; ngoko ke, ixabiso lencopho yotsalo lwangoku ukusuka kumgca we-ac kolu hlobo lweModyuli yoNikezelo lwaMandla ngama-1.6 amatyeli aphezulu kunokuba bekuya kuba njalo ukuba iModyuli yoNikezo lwaMandla ngumthwalo ohambelana ngokugqibeleleyo. Kamva imveliso yeModyuli yokuBonelelwa koMbane I-crest factor ye-Bikor Power Supply Module enemibala yesilivere yi-1.7 (imeko embi kakhulu). Incopho yangoku etsalwa kumgca wamandla we-ac yi-1.7 umphinda-phindene wexabiso langoku lerms. Ixabiso eliphakamileyo lomzobo wangoku ukusuka kumgca we-ac kwiModyuli yokuNikezela ngoMbane li-1.2 ngokuphindwe kabini kunokuba bekuya kuba njalo ukuba iModyuli yokuNikezela ngoMandla ngumthwalo olungeleleneyo womgca. Ubungakanani bomthombo wamandla we-AC Ubungakanani be-ac substation kunye/okanye i-UPS ukuhlangabezana nencopho yangoku kune-rms yangoku. Oku kuya kuthintela ingxaki yokuphazamiseka kwi-voltage yomgca obangelwa yi-spikes yangoku kumthwalo. Izaphuli zesekethe kunye nezikhondaktha zisalinganiswa ngokusetyenziswa kwamaxabiso e-rms. Isiguquli sesikhululo esingaphantsi kunye/okanye i-UPS inokuba ibonelela ngamandla kwimithwalo eyahlukeneyo kwiziko elinemiba eyahlukeneyo yekresti. Ukwenza ubungakanani ngokufanelekileyo i-substation ye-substation kunye/okanye i-UPS, kufuneka ubale i-crest factor yomthwalo odibeneyo. Ukwenza oku, bala i-total peak current kunye ne-rms epheleleyo yangoku kuyo yonke imithwalo. I-aggregate load crest factor ngumlinganiselo wala maxabiso mabini.