Pono ka lio maikaʻi i kahi noho lio maikaʻi! No ka hoʻohana pono ʻana i nā pono o nā hāmeʻa SiC, pono nō hoʻi e hoʻopili i ka ʻōnaehana kaapuni me nā capacitors kūpono. Mai ka mana hoʻokele nui i nā kaʻa uila a hiki i nā hiʻohiʻona ikehu hou e like me nā inverters photovoltaic, ke lilo mālie nei nā capacitors kiʻiʻoniʻoni i mea nui, a pono koke ka mākeke i nā huahana hana kiʻekiʻe.
I kēia mau lā aku nei, ua hoʻokuʻu ʻo Shanghai Yongming Electronic Co., Ltd. i nā capacitors kiʻiʻoniʻoni kākoʻo DC, nona nā pono koʻikoʻi ʻehā e kūpono ai no nā IGBT hanauna ʻehiku o Infineon. Kōkua pū lākou i ka hoʻoponopono ʻana i nā pilikia o ke kūpaʻa, ka hilinaʻi, ka miniaturization, a me ke kumukūʻai ma nā ʻōnaehana SiC.
Hoʻokō nā capacitors kiʻiʻoniʻoni i kahi kokoke i 90% komo i nā noi hoʻokele nui. No ke aha e pono ai ʻo SiC a me IGBT iā lākou?
I nā makahiki i hala iho nei, me ka wikiwiki o ka hoʻomohala ʻana o nā ʻoihana ikehu hou e like me ka mālama ʻana i ka ikehu, ka hoʻouka ʻana, a me nā kaʻa uila (EV), ua piʻi wikiwiki ka noi no nā capacitors DC-Link. I ka ʻōlelo maʻalahi, hana nā capacitors DC-Link ma ke ʻano he buffers i nā kaapuni, e omo ana i nā au pulse kiʻekiʻe mai ka hopena kaʻa a hoʻomaʻamaʻa i ka voltage kaʻa, no laila e pale ana i nā kuapo IGBT a me SiC MOSFET mai nā au pulse kiʻekiʻe a me nā hopena voltage transient.
ʻO ka maʻamau, hoʻohana ʻia nā capacitors electrolytic alumini i nā noi kākoʻo DC. Eia nō naʻe, me ka piʻi ʻana o ka volta kaʻa o nā kaʻa ikehu hou mai 400V a i 800V a me nā ʻōnaehana photovoltaic e neʻe ana i 1500V a hiki i 2000V, ke piʻi nui nei ke koi no nā capacitors kiʻiʻoniʻoni.
Hōʻike ka ʻikepili i ka makahiki 2022, ua hōʻea ka mana i hoʻokomo ʻia o nā inverters hoʻokele uila e pili ana i nā capacitors kiʻiʻoniʻoni DC-Link i 5.1117 miliona mau ʻāpana, e helu ana i 88.7% o ka nui o ka mana i hoʻokomo ʻia o nā mana uila. Hoʻohana nā ʻoihana hoʻokele uila alakaʻi e like me Fudi Power, Tesla, Inovance Technology, Nidec, a me Wiran Power i nā capacitors kiʻiʻoniʻoni DC-Link i kā lākou mau inverters hoʻokele, me ka lakio mana i hoʻokomo ʻia a hiki i ka 82.9%. Hōʻike kēia ua pani nā capacitors kiʻiʻoniʻoni i nā capacitors electrolytic ma ke ʻano he mea nui i ka mākeke hoʻokele uila.
ʻO kēia no ka mea ʻo ke kūpaʻa voltage kiʻekiʻe loa o nā capacitors electrolytic alumini ma kahi o 630V. I nā noi voltage kiʻekiʻe a me ka mana kiʻekiʻe ma luna o 700V, pono e hoʻopili ʻia nā capacitors electrolytic he nui ma ke ʻano series a me ka parallel e hoʻokō ai i nā koi hoʻohana, kahi e lawe mai ai i ka pohō ikehu hou aʻe, ke kumukūʻai BOM, a me nā pilikia hilinaʻi.
Ua hōʻike ʻia kahi pepa noiʻi mai ke Kulanui o Malaysia e hoʻohana pinepine ʻia nā capacitors electrolytic i loko o ka loulou DC o nā inverters half-bridge silicon IGBT, akā hiki ke loaʻa nā piʻi voltage ma muli o ke kū'ē kiʻekiʻe o ka moʻo like (ESR) o nā capacitors electrolytic. Ke hoʻohālikelike ʻia me nā hoʻonā IGBT i hoʻokumu ʻia i ka silicon, ʻoi aku ka kiʻekiʻe o nā alapine hoʻololi SiC MOSFET, e hopena ana i nā amplitudes piʻi voltage kiʻekiʻe ma ka loulou DC o nā inverters half-bridge. Hiki i kēia ke alakaʻi i ka hōʻino ʻana o ka hana o ka hāmeʻa a i ʻole ka hōʻino ʻana, ʻoiai ʻo ke alapine resonant o nā capacitors electrolytic he 4kHz wale nō, ʻaʻole lawa e omo i ka ripple o kēia manawa o nā inverters SiC MOSFET.
No laila, i nā noi DC me nā koi hilinaʻi kiʻekiʻe, e like me nā inverters hoʻokele uila a me nā inverters photovoltaic, koho pinepine ʻia nā capacitors kiʻiʻoniʻoni. Ke hoʻohālikelike ʻia me nā capacitors electrolytic alumini, ʻo kā lākou mau pono hana e komo pū me ke kū'ē voltage kiʻekiʻe, ESR haʻahaʻa, ʻaʻohe polarity, hana paʻa, a me ke ola lōʻihi, e hiki ai i kahi hoʻolālā ʻōnaehana hilinaʻi me ke kū'ē ripple ikaika.
Eia kekahi, ʻo ka hoʻohana ʻana i nā capacitors kiʻiʻoniʻoni i loko o ka ʻōnaehana hiki ke hoʻohana pinepine i nā pono kiʻekiʻe-alapine, haʻahaʻa-pohō o SiC MOSFETs, e hōʻemi nui ana i ka nui a me ke kaumaha o nā ʻāpana passive (inductors, transformers, capacitors) i loko o ka ʻōnaehana. Wahi a ka noiʻi a Wolfspeed, pono kahi inverter IGBT 10kW silicon-based i 22 mau capacitors electrolytic alumini, ʻoiai ʻo kahi inverter 40kW SiC e pono ai i 8 mau capacitors kiʻiʻoniʻoni, e hōʻemi nui ana i ka wahi PCB.
Hoʻokuʻu ʻo YMIN i nā Capacitors Film Hou me ʻehā mau pono nui e kākoʻo i ka ʻoihana ikehu hou
No ka hoʻoponopono ʻana i nā koi wikiwiki o ka mākeke, ua hoʻokuʻu koke aku nei ʻo YMIN i ka moʻo MDP a me MDR o nā capacitors kiʻiʻoniʻoni kākoʻo DC. Ma ka hoʻohana ʻana i nā kaʻina hana hana holomua a me nā mea kiʻekiʻe, kūpono loa kēia mau capacitors me nā koi hana o SiC MOSFETs a me nā IGBTs e pili ana i ka silicon mai nā alakaʻi semiconductor mana honua e like me Infineon.
Loaʻa i nā capacitors kiʻiʻoniʻoni MDP a me MDR series a YMIN kekahi mau hiʻohiʻona koʻikoʻi: ke kūpaʻa moʻo like haʻahaʻa (ESR), ke ana uila kiʻekiʻe, ke au leakage haʻahaʻa, a me ke kūpaʻa mahana kiʻekiʻe.
ʻO ka mea mua, hōʻike nā capacitors kiʻiʻoniʻoni o YMIN i kahi hoʻolālā ESR haʻahaʻa, e hōʻemi pono ana i ke kaumaha voltage i ka wā o ka hoʻololi ʻana o SiC MOSFETs a me nā IGBTs e pili ana i ka silicon, no laila e hōʻemi ana i nā pohō capacitor a hoʻomaikaʻi i ka pono holoʻokoʻa o ka ʻōnaehana. Eia kekahi, ʻoi aku ka kiʻekiʻe o ka voltage i helu ʻia i kēia mau capacitors, hiki ke kū i nā kūlana voltage kiʻekiʻe a me ka hōʻoia ʻana i ka hana paʻa o ka ʻōnaehana.
Hāʻawi ka moʻo MDP a me MDR o nā capacitors kiʻiʻoniʻoni YMIN i nā pae capacitance o 5uF-150uF a me 50uF-3000uF, a me nā pae voltage o 350V-1500V a me 350V-2200V, kēlā me kēia.
ʻO ka lua, ʻo nā capacitors kiʻiʻoniʻoni hou loa a YMIN he haʻahaʻa ka leakage current a me ke kūpaʻa wela kiʻekiʻe. I ke ʻano o nā ʻōnaehana hoʻokele uila kaʻa uila, nona ka mana kiʻekiʻe, hiki i ka hopena o ka wela ke hoʻopilikia nui i ke ola a me ka hilinaʻi o nā capacitors kiʻiʻoniʻoni. No ka hoʻoponopono ʻana i kēia, hoʻokomo ka moʻo MDP a me MDR mai YMIN i nā mea kiʻekiʻe a me nā ʻenehana hana holomua e hoʻolālā i kahi ʻano thermal i hoʻomaikaʻi ʻia no nā capacitors. Hōʻoia kēia i ka hana paʻa ʻoiai ma nā wahi wela kiʻekiʻe, e pale ana i ka hōʻemi ʻana o ka waiwai capacitor a i ʻole ka hāʻule ʻana ma muli o ka piʻi ʻana o ka mahana. Eia kekahi, ʻoi aku ka lōʻihi o ke ola o kēia mau capacitors, e hāʻawi ana i ke kākoʻo hilinaʻi no nā ʻōnaehana uila mana.
ʻO ke kolu, ʻo nā capacitors moʻo MDP a me MDR mai YMIN e hōʻike ana i kahi nui liʻiliʻi a me ka nui o ka mana kiʻekiʻe. No ka laʻana, i nā ʻōnaehana hoʻokele uila 800V, ʻo ke ʻano o ka hoʻohana ʻana i nā mea SiC e hōʻemi i ka nui o nā capacitors a me nā ʻāpana passive ʻē aʻe, no laila e paipai ana i ka miniaturization o nā mana uila. Ua hoʻohana ʻo YMIN i ka ʻenehana hana kiʻiʻoniʻoni hou, ʻaʻole wale e hoʻonui i ka hoʻohui ʻana o ka ʻōnaehana holoʻokoʻa a me ka pono akā e hōʻemi pū i ka nui a me ke kaumaha o ka ʻōnaehana, e hoʻonui ana i ka lawe lima a me ka maʻalahi o nā mea hana.
Ma keʻano holoʻokoʻa, hāʻawi ka moʻo capacitor kiʻiʻoniʻoni DC-Link a YMIN i kahi hoʻomaikaʻi 30% i ka hiki ke kū i ka dv/dt a me ka hoʻonui ʻana o 30% i ke ola i hoʻohālikelike ʻia me nā capacitor kiʻiʻoniʻoni ʻē aʻe ma ka mākeke. ʻAʻole wale kēia e hāʻawi i ka hilinaʻi maikaʻi no nā kaapuni SiC/IGBT akā hāʻawi pū kekahi i ka maikaʻi o ke kumukūʻai, e lanakila ana i nā pale kumukūʻai i ka hoʻohana ākea ʻana o nā capacitor kiʻiʻoniʻoni.
Ma ke ʻano he paionia ʻoihana, ua komo nui ʻo YMIN i ke kahua capacitor no nā makahiki he 20 a ʻoi. Ua hoʻopili paʻa ʻia kāna mau capacitors voltage kiʻekiʻe ma nā kahua kiʻekiʻe e like me ka OBC onboard, nā paila hoʻouka ikehu hou, nā inverters photovoltaic, a me nā robots ʻoihana no nā makahiki he nui. Hoʻoponopono kēia hanauna hou o nā huahana capacitor kiʻiʻoniʻoni i nā pilikia like ʻole i ka kaohi ʻana i ke kaʻina hana capacitor kiʻiʻoniʻoni a me nā lako, ua hoʻopau i ka hōʻoia hilinaʻi me nā ʻoihana honua alakaʻi, a ua hoʻokō i ka noi nui, e hōʻoia ana i ka hilinaʻi o ka huahana i nā mea kūʻai aku nui. I ka wā e hiki mai ana, e hoʻohana ʻo YMIN i kāna hōʻiliʻili loea lōʻihi e kākoʻo i ka hoʻomohala wikiwiki ʻana o ka ʻoihana ikehu hou me nā huahana capacitor hilinaʻi kiʻekiʻe a me ke kumukūʻai kūpono.
No ka ʻike hou aku, e kipa akuwww.ymin.cn.
Ka manawa hoʻouna: Iulai-07-2024