N'ime afọ ndị na-adịbeghị anya, ọganihu na-arịwanye elu nke ụlọ ọrụ ike ọhụrụ dị ka nchekwa fotovoltaic na ụgbọ ala eletrik (EV) emeela ka mmụba dị elu na-achọ DC-Link capacitors. Na nkenke, DC-Link capacitors na-arụ ọrụ dị mkpa na sekit. Ha nwere ike banye n'ọgba mmiri dị elu na njedebe ụgbọ ala ma mee ka voltaji ụgbọ ala dị mma, na-ahụ na IGBT na SiC MOSFET switches na-echebe site na mmetụta ọjọọ nke ụda ụda dị elu na voltaji na-agafe agafe n'oge ọrụ.
Ka voltaji ụgbọ ala nke ụgbọ ala ume ọhụrụ na-abawanye site na 400V ruo 800V, ọchịchọ maka ndị na-eme ihe nkiri abawanyela nke ukwuu. Dị ka data si kwuo, ike arụnyere nke ndị ntụgharị ọkụ eletrik dabere na DC-Link thin-film capacitors ruru nde 5.1117 na 2022, na-aza 88.7% nke ikike arụnyere nke njikwa eletrik. Ndị na-ebugharị ụgbọala nke ọtụtụ ụlọ ọrụ na-ahụ maka ọkụ eletrik dị ka Tesla na Nidec niile na-eji DC-Link ihe nkiri capacitors, nke na-aza 82.9% nke ike arụnyere ma bụrụ nhọrọ kachasị na ahịa ụgbọala eletrik.
Akwụkwọ nyocha na-egosi na na silicon IGBT ọkara-bridge inverters, omenala electrolytic capacitors na-ejikarị na njikọ DC, ma voltaji surges ga-eme n'ihi na elu ESR nke electrolytic capacitors. E jiri ya tụnyere silicon dabeere IGBT ngwọta, SiC MOSFETs nwere a elu ịgbanwee ugboro, otú voltaji mụbaa amplitude na DC njikọ nke ọkara-àkwà mmiri inverter bụ elu, nke nwere ike ime ka ngwaọrụ arụmọrụ mmebi ma ọ bụ ọbụna mmebi, na resonant ugboro nke electrolytic capacitors bụ naanị 4kHz, nke na-ezughị iji banye ugbu a ripple nke Siverters MOSFET.
Ya mere, na ngwa DC dị ka eletriki mbanye inverters na fotovoltaic inverters nwere ntụkwasị obi dị elu chọrọ,ihe nkiri capacitorsa na-ahọrọkarị. E jiri ya tụnyere aluminom electrolytic capacitors, uru arụmọrụ ha bụ nguzogide voltaji dị elu, ESR dị ala, enweghị polarity, arụmọrụ kwụsiri ike, yana ogologo ndụ, si otú a na-enweta nguzogide siri ike na nhazi usoro a pụrụ ịdabere na ya.
Sistemu na-eji capacitors ihe nkiri dị mkpa nwere ike iji ohere dị elu na obere mfu nke SiC MOSFET wee belata nha na ịdị arọ nke ihe ndị na-agafe agafe. Nnyocha Wolfspeed na-egosi na 10kW silicon dabeere IGBT inverter chọrọ 22 aluminum electrolytic capacitors, ebe 40kW SiC inverter na-achọ naanị 8 mkpa ihe nkiri capacitors, na mpaghara PCB na-ebelata nke ukwuu.
Na nzaghachi maka ahịa ahịa, YMIN Electronics weputara yaMDP usoro nke ihe nkiri capacitors, nke na-eji teknụzụ dị elu na ihe ndị dị elu na-eme mgbanwe na SiC MOSFET na IGBT dabeere na silicon. MDP usoro capacitors na-egosipụta ESR dị ala, voltaji na-eguzogide elu, obere ntapu dị ugbu a na nkwụsi ike dị elu.
Uru nke ngwaahịa capacitor ihe nkiri YMIN Electronics:
YMIN Electronics' ihe nkiri capacitor imewe na-anabata echiche ESR dị ala iji belata nrụgide voltaji na mbelata ike n'oge mgbanwe ma melite arụmọrụ ike sistemu. Ọ nwere voltaji dị elu, na-adaba na gburugburu voltaji dị elu, ma na-eme ka usoro nkwụsi ike.
MDP usoro capacitors nwere oke ikike nke 1uF-500uF yana oke voltaji nke 500V ruo 1500V. Ha nwere obere ntapu ugbu a yana nkwụsi ike okpomọkụ dị elu. Site na ihe ndị dị elu na usoro dị elu, a na-emepụta usoro ikpo ọkụ ọkụ na-arụ ọrụ nke ọma iji hụ na arụmọrụ kwụsiri ike na okpomọkụ dị elu, gbasaa ndụ ọrụ, ma nye nkwado a pụrụ ịdabere na ya maka usoro eletriki eletrik. N'otu oge ahụ, ndịMDP usoro capacitorsbụ kọmpat na nha, dị elu na njupụta ike, ma na-eji usoro mmepụta ihe nkiri dị mkpa na-emepụta ihe ọhụrụ iji melite njikọ na arụmọrụ usoro, belata nha na ịdị arọ, na ịbawanye ngwa ngwa ngwa na mgbanwe.
YMIN Electronics DC-Link film capacitor series nwere 30% mmelite na dv / dt ndidi na 30% na-abawanye na ndụ ọrụ, nke na-eme ka ntụkwasị obi nke SiC / IGBT sekit, na-eweta uru dị mma nke ọma, na-edozi nsogbu ọnụahịa.
Oge nzipu: Jan-10-2025