Momwe mungasankhire bwino magawo a inverter chowotcha kutentha

Nthawi zambiri, pogwira ntchito pamwamba pa 400HZ, zida za KK ziyenera kuganiziridwa; pomwe ma frequency ali pamwamba pa 4KHz, zida za KA zitha kuganiziridwa. Apa ife makamaka timayambitsa kusankha kwa zigawo mu parallel inverter dera (onani Chithunzi 1).

(1) Chigawo cha kutsogolo ndi kumbuyo kwa VDRM, chigawo cha VRRM kutsogolo ndi kubwereza nsonga yamagetsi iyenera kukhala 1.5-2 nthawi yeniyeni yeniyeni yopita kutsogolo ndi kubwezera nsonga yamagetsi. Pongoganiza kuti magetsi olowera a DC a inverter ndi Ud ndipo mphamvu ndi cosψ, ndiye:

VDRM/RRM=(1.5-2)πUd/(2cosψ)

(2) Zomwe zili pa-state panopa za IT (AV) za chigawocho zimaganizira kuti pamene chigawocho chikugwira ntchito pafupipafupi, kutayika kwake kosinthika kumakhala kofunikira kwambiri. Zomwe zidavoteledwa panyengo yachigawocho ziyenera kuyenda nthawi 2-3 mtengo wake wothandiza Ine molingana ndi zenizeni Kuganizira, zomwe ndi

IT(AV)=(2-3)I/1.57

Pongoganiza kuti inverter DC yolowetsa panopa ndi Id, chipangizo chosankhidwa cha IT (AV) ndicho

IT(AV)=(2-3)×Id/(1.57)

(3) Kuzimitsa nthawi tq Mu dera lofanana la inverter, nthawi yozimitsa ya chinthu cha KK iyenera kusankhidwa molingana ndi pre-trigger time tf ndi nthawi yosinthira tr. Nthawi zambiri tenga:

tq=(tf-tr)×

(Pamene mphamvu yamagetsi ndi 0.8, tf ili pafupi gawo limodzi mwa magawo khumi a nthawiyo, tr imatsimikiziridwa ndi element di/dt yocheperapo kapena yofanana ndi 100A/μS) Pamene ma frequency ali apamwamba, nthawi yosinthira tr imatha kuchepetsedwa ndipo kuperekedwa nsembe moyenera Njira yowonjezera mphamvu yowonjezera tf kusankha zigawo zomwe zili ndi mtengo woyenerera wa tq