Kuyika mphamvu zatsopano mu ma converter osungira mphamvu ndikutsogolera kusintha kwa mphamvu moyenera: Kugwiritsa ntchito ma capacitor a YMIN

Ma PC Osungira Mphamvu

Machitidwe osungira mphamvu ndi gawo lofunika kwambiri la machitidwe amakono amagetsi obwezerezedwanso. Amagwiritsidwa ntchito kwambiri chifukwa amachepetsa kuwononga mphamvu ndikuwonjezera magwiridwe antchito amagetsi. Chifukwa cha kuyanjana pakati pa mabatire ndi gridi yamagetsi, ma converter amafunika kuchita kusintha kwa AC-DC ndikulola kuyenda kwa mphamvu mbali zonse ziwiri. Kuphatikiza apo, ma converter amachita gawo lofunikira kwambiri pamakina osungira mphamvu powongolera mphamvu mwa kuwongolera kukula ndi komwe mphamvu ikupita, kulola kumeta pamwamba ndi kudzaza zigwa kuti ziwonjezere kugwiritsa ntchito mphamvu moyenera, komanso kupereka chitetezo chochulukirapo kuti zitsimikizire chitetezo cha makina.

Pakati pa dera lokonzanso ndi dera losinthira, paliKapolishi wa DC-LINKChofunika kwambiri pakuthandizira ndi kusefa mphamvu yamagetsi. Ntchito yake yayikulu ndikuyamwa mphamvu yamagetsi yamagetsi yamagetsi yamagetsi pa basi ya DC-LINK, kuteteza mphamvu yamagetsi ...

Ma capacitor a YMIN ali ndi makhalidwe otsatirawa mu gawo la converter

01. Mphamvu Yapamwamba

Capacitor ya DC-Link imasunga mphamvu zamagetsi, zomwe zimathandiza kuti ipereke mphamvu yopitilira ku makina osinthira magetsi panthawi yosinthasintha kwakukulu kwa magetsi kapena kuzima kwa magetsi, zomwe zimapangitsa kuti makinawo azigwira ntchito bwino. Kuphatikiza apo, makina osinthira magetsi akafuna mphamvu zambiri, DC-Link capacitor imatha kutulutsa mphamvu yosungidwa mwachangu kuti ikwaniritse zosowa zosakhalitsa. Mu zinthu zoyambitsa monga ma mota, capacitor imaperekanso mphamvu yobwezera mphamvu, imakhazikika pamagetsi, komanso imawongolera magwiridwe antchito a injini. Izi zimagwira ntchito yofunika kwambiri pakukweza magwiridwe antchito ndi kukhazikika kwa makina.

02. Kukana kwa Voltage Yapamwamba Kwambiri

Ma capacitor a YMIN, omwe ali ndi mphamvu yolimba kwambiri yamagetsi, amathanso kukhala zinthu zoteteza. Pa nthawi yogwiritsa ntchito chosinthira, amateteza zinthu zamagetsi zomwe zimakhala zovuta kuonongeka chifukwa cha kukwera kwa magetsi. Izi zimathandiza kuti zosinthira zamagetsi zosungira mphamvu zipereke chithandizo chokhazikika cha magetsi ndi ma frequency ku gridi yamagetsi, zomwe zimathandiza kuti makina azigwira ntchito bwino.

03. Kukana Kwambiri kwa Kukwera kwa Mphamvu

Ma capacitor a YMIN amayamwa bwino ma pulse currents amphamvu opangidwa ndi converter kumapeto kwa DC-Link, zomwe zimathandiza kuti mphamvu yotulutsa iyende bwino kudzera mu current control. Izi zimatsimikizira kuti converter ikukwaniritsa zofunikira pazochitika zosiyanasiyana ndipo imapereka mphamvu yapamwamba kwambiri ya AC output. Panthawi yoyambira pang'onopang'ono ya ma converter, ma capacitor a YMIN amapanga gawo la charging circuit, zomwe zimathandiza kupewa kuwononga kwambiri magetsi olowera ndi katundu.

04. Moyo Wautali

Ma capacitor a YMIN, opangidwa pogwiritsa ntchito njira zokhazikika ndipo amayesedwa mwamphamvu asanatumizidwe, ali ndi mphamvu zambiri komanso kukana bwino kukwera kwa mphamvu. Makhalidwe amenewa amathandiza ma converter mu makina osungira mphamvu kuti azigwira ntchito mokhazikika kwa nthawi yayitali, zomwe zimachepetsa kulephera ndi ndalama zokonzera.

Kulowa mwachangualuminiyamu electrolytic capacitormalangizo osankhidwa

Malo Ogwiritsira Ntchito	Zithunzi	Mndandanda	Voltage yoyesedwa (voteji yowonjezereka)	Mphamvu ya μF	Kukula D*L	Kukana kutentha ndi moyo
Mphamvu Yosintha Kachitidwe		CW3	550 (600)	470	35*50	105℃ 3000H
		CW6	550 (600)	270	35*40	105℃ 6000H
				560	35*70
			450 (500)	680	35*50

Udindo, ubwino ndi makhalidwe ama capacitor a electrolytic a aluminiyamu opangidwa ndi snap-inmu mapulogalamu a converter PCS:
Kukana kwamphamvu kwamagetsi:Ma capacitor amphamvu kwambiri amatha kuthana ndi mafunde akuluakulu ndikupirira kugwedezeka komwe kumachitika chifukwa cha kusinthasintha kwa mphamvu zamagetsi nthawi yomweyo kapena kusinthasintha kwa katundu.
Kukana kofanana kotsika (ESR) ndi kulekerera kwamphamvu kwa ripple current:Ndi ESR yotsika komanso kukana kwamphamvu kwa ripple current, ESR yotsika ya capacitor imathandiza kuchepetsa kusinthasintha kwa magetsi ndikuwonjezera kukhazikika kwa dongosolo.
Moyo wautali komanso kudalirika kwambiri:Kukana kutentha kwambiri komanso kukhala ndi moyo wautali kumaonetsetsa kuti ikugwira ntchito bwino m'malo ovuta. Izi ndizofunikira kwambiri pakugwiritsa ntchito mphamvu nthawi yayitali monga mphamvu ya mphepo ndi mphamvu ya photovoltaic.
Makhalidwe abwino oyendetsera kutentha:Chotsani kutentha bwino kuti kutentha kwambiri kusawononge kapena kulephera kugwira ntchito.
Kukonza voliyumu:Kuchuluka kwa mphamvu pamene kumatenga malo ochepa.

Zolangizidwachojambulira filimukusankha

Malo Ogwiritsira Ntchito	Zithunzi	Mndandanda	Voltage yoyesedwa (voteji yowonjezereka)	Mphamvu ya μF	Kukula W*H*B	Kukana kutentha ndi moyo
Mphamvu Yosintha Kachitidwe		MDP	500	22	32*37*22	105℃ 100000H
				120	57.5*56*35
			800	50	57.5*45*30
				65	57.5*50*35
				120	57.5*65*45
			1100	40	57.5*55*35
			1500	Zosinthika	Zosinthika

Udindo, ubwino ndi makhalidwe ama capacitor a filimumu mapulogalamu a converter PCS:
Kukana kwa mndandanda wotsika (ESR):Poyerekeza ndi ma capacitor achikhalidwe a electrolytic, ili ndi ESR yotsika, kutayika kochepa, komanso imapangitsa kuti dongosolo lonse ligwire bwino ntchito.
Kukana kwamphamvu kwamagetsi:Imatha kupirira ma voltage okwera kuti iwonetsetse kuti makinawo akugwira ntchito bwino pansi pa malo okwera ma voltage. Mphamvu yake yovomerezeka imatha kufika 350V-2700V, kukwaniritsa zosowa za zochitika zosiyanasiyana zogwiritsidwa ntchito.
Kukhazikika kwa kutentha kwabwino kwambiri:Kukhazikika kwa kutentha kwambiri, kudzera mu zipangizo zapamwamba komanso njira zopangira zapamwamba, kumatsimikizira kuti zinthu zikuyenda bwino m'malo otentha kwambiri.
Moyo wautali wautumiki:Ma capacitor a filimu yachitsulo amakhala ndi moyo wautali wautumiki ndipo amapereka chithandizo chodalirika kwambiri pamakina amagetsi amphamvu.
Kukula kochepa:Ukadaulo watsopano wamakono wopanga zinthu sikuti umangowonjezera kuchuluka kwa ma capacitor, komanso umachepetsa kwambiri kuchuluka ndi kulemera kwa makina onse ndi kuchuluka kochepa, zomwe zimapangitsa kuti zidazo zizitha kunyamulika komanso kusinthasintha.
Kuchita bwino kwa mtengo:Zogulitsa za DC-Link film capacitor zili ndi kulekerera kwa dv/dt kokwera ndi 30% komanso moyo wautali ndi 30% kuposa ma capacitor ena a film pamsika, zomwe sizimangopereka kudalirika kwabwino kwa ma SiC/IGBT circuits, komanso zimaperekanso mtengo wabwinoko.

Chidule

YMINMa capacitor amagwira ntchito yofunika kwambiri mu makina osungira mphamvu chifukwa cha mphamvu zawo zazikulu, kupirira mphamvu zambiri, komanso moyo wautali. Amathandiza ma inverter osungira mphamvu kumaliza kusintha mphamvu mbali zonse ziwiri, kulamulira mphamvu ndi ntchito zina, komanso kukonza kugawa kwa mphamvu ya gridi yamagetsi pogwiritsa ntchito kumeta pamwamba ndi kudzaza chigwa. Amawongolera kugwiritsa ntchito mphamvu kwa inverter mumakina osungira mphamvu ndipo ndi chisankho chabwino kwambiri cha ma inverter m'munda wa capacitor.