Kudzora kumhanya kwekuchinja kwema frequency kunowanzo reva sisitimu yemagetsi yakadaro: injini yekushandura kumhanya kwekuchinja kwema frequency, injini inochinja ma frequency, inogadziriswa controller nezvimwe zvishandiso zvine hungwaru, ma terminal actuators uye software yekudzora, nezvimwewo, zvinoumba sisitimu yekudzora kumhanya kwe AC yakavhurika kana yakavharika. Rudzi urwu rwesisitimu yekudzora kumhanya iri kutsiva sisitimu yekudzora kumhanya kwemakanika yechinyakare uye chirongwa chekudzora kumhanya kweDC mumamiriro ezvinhu asina kumboitika, izvo zvinovandudza zvakanyanya mwero we otomatiki yemakanika uye kushanda zvakanaka kwekugadzira, uye zvinoita kuti michina ive midiki uye yakangwara.
Tichitarisa kushandiswa kwesimba kwemamota ese mumaindasitiri, inenge 70% yemamota anoshandiswa mukutakura mafeni nemapombi. Mabhenefiti ekuchengetedza simba uye kuderedza kuburitsa mweya wemafuta pamitoro yakadaro ari pachena: mabhenefiti makuru ehupfumi uye mhedzisiro inogara kwenguva refu munharaunda. Zvichienderana nechinangwa chiri pamusoro apa, mutemo wekumhanya kwekushandura frequency yemota yeAC unoshandiswa zvakanyanya. Semuenzaniso, mu inverter air conditioner, kana tembiricha yakatarwa ne air conditioner yadzikiswa, zvinongodiwa chete kudzora kumhanya kwemota kuti uderedze uye uderedze simba rekutyaira rinobuda.
Kuwedzera pakuchengetedza simba uye kuva nyore kushandisa nekukurudzira, mota dzemhando yepamusoro dzinodzora kumhanya kwemagetsi dzinochinja-chinja dzine mukana wekutanga zvinyoro-nyoro, uye hapana chikonzero chekuongorora mashandiro ekutanga. Dambudziko guru chete rinoda kugadziriswa nderekuti: kukwanisa kwemota kuchinjika nesimba remafungu asiri e-sine kunofanira kuvandudzwa.
Musimboti wekushanda kwe Frequency converter
Chinoshandura ma frequency chatinoshandisa chinonyanya kushandisa AC-DC-AC mode (VVVF frequency conversion kana vector control frequency conversion). Chekutanga, simba reAC rinoshandurwa kuita DC power kuburikidza ne rectifier, uye simba reDC rinoshandurwa kuita AC ine controlled frequency uye voltage power kuti ipe mota. Dunhu re frequency converter rinowanzo kuve nezvikamu zvina: rectification, intermediate DC link, inverter uye control. Chikamu che rectification i three-phase bridge rentrollerable rectifier, inverter chikamu i IGBT three-phase bridge inverter, uye output i PWM waveform, uye intermediate DC link iri filtering, DC energy storage uye buffering reactive power.
Kudzora mafrequency kwave chirongwa chikuru chekudzora kumhanya, chinogona kushandiswa zvakanyanya mukufambisa pasina matanho mumaindasitiri akasiyana-siyana. Kunyanya nekushandiswa kuri kuramba kuchipararira kwevanoshandura mafrequency mumunda wekudzora maindasitiri, kushandiswa kwemota dzekushandura mafrequency kwave kupararira zvakanyanya. Zvinogona kutaurwa kuti nekuda kwehukuru hwemota dzekushandura mafrequency mukudzora mafrequency pamusoro pemota dzakajairika, chero kupi zvako kunoshandiswa vanoshandura mafrequency, isu Hazvina kuoma kuona mufananidzo wemota yekushandura mafrequency.
Kuedza kwemota yevariable frequency kunowanzo fanirwa kufambiswa ne frequency converter. Sezvo frequency inobuda ye frequency converter ine mhando dzakasiyana dzekuchinja, uye output PWM wave ine harmonics dzakapfuma, transformer yechinyakare uye power meter hazvichakwanisi kusangana nezvinodiwa zvekuyedza. Frequency conversion power analyzer uye frequency conversion power transmitter, nezvimwewo.
Bhenji rekuyedza mota rakajairika imhando itsva yehurongwa hwekuyedza hwakatangwa hwehurongwa hwekuvandudza mashandiro esimba remota mukupindura pakuchengetedza simba uye kuderedza kusvibiswa kwemhepo. Bhenji rekuyedza mota rakajairika rinogadzirisa uye rinoshandisa sisitimu yakaoma, rinovandudza kuvimbika kwesisitimu, rinorerutsa maitiro ekuisa nekugadzirisa, uye rinoderedza mutengo wesisitimu.
Zvimiro zvemotokari zvakakosha zvekushandurwa kwefrequency
Dhizaini yekuwedzera tembiricha yeClass B, kugadzirwa kweinsulation yekirasi F. Kushandiswa kwezvinhu zve polymer insulation uye maitiro ekugadzira varnish yakanyikwa ne varnish uye kushandiswa kwechimiro chakakosha cheinsulation kunoita kuti insulation yemagetsi irambe yakasimba pamagetsi uye simba remakanika riwedzere zvakanyanya, izvo zvakakwana kuti mota ishande nekukurumidza uye irambe ichishanda nesimba remagetsi uye voltage ye inverter. Kukuvadzwa kweinsulation.
Mota yekushandura mafrequency ine mhando yepamusoro yekuenzanisa, uye vibration level iri paR-level. Kunyatso shandiswa kwezvikamu zvemakanika kwakanyanya, uye mabearings akakosha akanyatsogadzirwa anoshandiswa, anogona kumhanya nekumhanya kwakanyanya.
Mota yekushandura frequency inoshandisa nzira yekumanikidza yekufema uye yekudzima kupisa, uye mafeni ese ekunze anopinza axial flow akanyarara zvikuru, anogara kwenguva refu, uye mhepo ine simba. Inovimbisa kuti mota inodzima kupisa zvakanaka chero nekumhanya kupi zvako, uye inoshanda kwenguva refu nekukurumidza kana pasi.
Kana ichienzaniswa nemota yemazuva ano inochinja-chinja, ine kumhanya kwakakura uye mhando yepamusoro yekugadzira. Dhizaini yesimba remagineti yakakosha inodzvinyirira simba remagineti repamusoro kuti risangane nezviratidzo zvekugadzira zvebroadband, kuchengetedza simba uye ruzha rwakaderera. Ine mhando dzakasiyana dzehunhu hwekutonga kwesimba remagetsi risingaperi uye simba, kudzora kumhanya kwakagadzikana, uye kusaita torque ripple.
Ine ma parameter matching akanaka nema frequency converters akasiyana-siyana. Ichishanda pamwe chete ne vector control, inogona kuita zero-speed full-torque, low-frequency high-torque uye high-precision speed control, position control uye fast dynamic response control.
Nguva yekutumira: Zvita-05-2023