1. Mabviro ehutongi hunoenderana
Izwi rekuti pulse current rakatanga nekuongororwa kwemasvomhu yepulse current ine chekuita neacoustic materials.Yakagadzira nheyo yakanaka muzana remakore rechi18 nerechi19.Fourier et al.yakanyatso kurudzira nzira yekuongorora yeharmonic, iyo ichiri kushandiswa zvakanyanya mumagadzirirwo emagetsi.Dambudziko repulse current rakatanga sezana remakore rechi20.Nguva nema1930 zvakakwevera pfungwa dzemunhu wese.Panguva iyoyo, kushandiswa kweFrance kwema-stationary mercury arc converters kwakakonzera shanduko yemafungu mumagetsi neazvino.Muna 1945, JCRead yakaburitsa yakabatana inoshandura pulse currents.Mumakore ekuma1950 nema1960, nekuda kwekuvandudzwa kweyepamusoro-voltage yakananga ikozvino yekufambisa tekinoroji, mashanduri ane hukama akaburitswa, izvo zvakakonzera matambudziko mazhinji epamhepo musimba rekupa magetsi.Kubva kuma1970, nekuda kwekukurumidza kukura kwemagetsi emagetsi tekinoroji, akasiyana magetsi emagetsi emagetsi Sitimu yemagetsi, kugadzirwa kwemaindasitiri, chekufambisa uye kushandiswa kwemba kuri kuwedzera uye kuwanda.Migumisiro yakashata yepulse currents iri kuramba ichiwedzera.Munyika yose vakapa ngwariro yakakwana kuchinetso chazvino chepulse.Misangano yakawanda yezvidzidzo pamusoro pezvinetso zvemazuva ano yakaitwa pasi rose.Masangano makuru makuru ekutsvagisa edzidzo akagadzira mirau uye zvinodikanwa zvekudzikamisa pulse ikozvino yemagetsi ekupa simba uye magetsi ekushandisa.Zvishandiso zvemagetsi zvinopisa zvakanyanya, zvichikonzera kuzunguzika uye ruzha, uye kuita kuti insulating layer iite brittle.Hupenyu hwesevhisi hwakapfupikiswa, uye kunyangwe kukanganisa kana kukuvara kunoitika.Iyo pulse ikozvino inokonzeresa kuti chikamu chemagetsi emagetsi chiite maungira munhevedzano kana mukuenderana.Iyo inokonzeresa iyo relay yekudzivirira mudziyo uye mudziyo wekudzivirira kusashanda, ita kuti iyo electromagnetic simba kuyerwa uye ongororo iende zvisizvo, uye yekunze pulse ikozvino yemagetsi emagetsi system inokonzeresa kukanganisa kwakanyanya kumidziyo yekutaurirana uye zvigadzirwa zvemagetsi.
Nzira yekugadzirisa sei pulse current?Kunyanya muchikamu chekuchinja magetsi uye kugadzirisa mota, nekuvandudzwa kwemaindasitiri kudzora otomatiki, kuchengetedza kwezvakatipoteredza uye kuchengetedza simba, kuchengetedza simba uye kudzikisa emission marongero, mota hadziwanzo kubatanidza zvakananga kune gidhi remagetsi uye kushandiswa zvakananga.Kazhinji, ivo vanofambiswa nevatangi vanyoro.Iyo inverter inogona kuchinjika kudzora inobuda simba uye kumhanya chiyero chemota, inosangana nezvinodiwa zvebasa, uye ine zvinoshamisa mhedzisiro mukuchengetedza kwezvakatipoteredza uye kuchengetedza simba.Sezvo munhu wese anoziva, iyo yakapfava yekutanga yakakonzera dambudziko reharmonic ikozvino kune grid yemagetsi.Ese makambani emagetsi haatenderi vatengi kuunza yakawandisa harmonic ikozvino kune yemagetsi grid.Vatengi vanosungirwa kubvisa harmonic ikozvino inokonzerwa neiyo soft starter.Iine nyoro yekutangisa Iyo yakafara application uye kuchengetedzwa kwemamotor, MTE inosanganisira akateedzana reactor, anobuda marejita, dv/dt mafirita uye zvimwe zvigadzirwa, yakasarudzika dhizaini yedV Sentry inopa zvirinani kuchengetedzwa kwepadivi, kubvumira AC motors, tambo uye Manyoro ekutanga kuchengetedzwa. kubva pakushanda voltage spikes uye kukanganiswa kubva kune yakajairika mode inoshanda voltages.
Iyo yakanyatsogadzirwa sefa inobatanidza nezve 50% kuderedzwa mune yakajairwa modhi, mupata voltage kudzivirira uye kusimuka nguva kuderedzwa.
2. Harmonic control inochengetedza simba rekuchengetedza chinangwa uye kukosha
Usafunge kuti kuvapo kwepulse ikozvino kunongokanganisa hutano hwemagetsi emagetsi.Muchokwadi, inobatanawo nekushandiswa kwesimba uye mwero wemvura nemagetsi.Mune mamwe mazwi, kana harmonic ikozvino mumagetsi grid system inogona kubviswa, ichabatsira kuchengetedza chinangwa chekuchengetedza magetsi.
Nekuvandudzwa kwemitemo yenyika yekuchengetedza simba uye kuburitsa-kubvisa, matanho akasiyana-siyana ekuchengetedza simba achatorwa nemaguta makuru, uye harmonic control ichavewo yakanaka kwazvo yekubuda.
Kunyangwe kuitiswa kweharmonic control kuri kungoita kuvandudza kunaka kwesimba, asi kuve nechokwadi chekushandiswa kwakajairwa kwemidziyo, asi nekuvandudza zvishoma nezvishoma tekinoroji, hazvina kunyanyoipa kuishandisa seimwe yematanho ekuchengetedza simba rekuchengetedza. mhedzisiro inogoneka.
Pane kazhinji nzira mbiri dzekuzadzisa chinangwa chekuchengetedza magetsi, imwe ndeyekudzikisa basa remagetsi, uye imwe ndeyekuvandudza kushanda kwesimba remagetsi.
Harmonic currents inogona kukonzera kuparara kwekukuvara, imwe yacho inokonzeresa kupera simba, kana kurasikirwa nekupisa mudunhu.Uku kurasikirwa kwekupisa kunoratidzwa musimba rinoshanda remamita emagetsi emagetsi ega.Kana kurasikirwa kweharmonic ikozvino mumutsara kunogona kuderedzwa, chinangwa chekuchengetedza magetsi chinogona kuwanikwa.
Asi zvakadini nemigumisiro chaiyo yebasa chairo?Nezvezvino harmonic yekudzora nzira ine chekuita, sarudzo huru ndiyo inoshanda sefa uye notch simba redunhu mhando passive sefa.Iri rudzi rwesefa inoiswa munhevedzano pamutsetse, uye iwo chaiwo maitiro akawanikwa haana kunyanya kunaka.
Kusiyana neizvi, mhedzisiro ye harmonic control pane pulse ikozvino sosi mutoro ichave yakanyanya kunaka.Kana iyo pulse yazvino sefa yakaiswa pane yega yega pulse ikozvino sosi mutoro, kwete chete yakanaka simba rekuchengetedza mhedzisiro inowanikwa, asi zvakare Inogona kuve nechokwadi chemhando yekambani yemagetsi network network, inova chirongwa chekusimudzira uku.
Nguva yekutumira: Kubvumbi-13-2023