Frequency shanduko yekumhanya mutemo inowanzo reva kune yakadaro electromechanical system: frequency yekushandura mhanyisa regulation induction mota, frequency converter, programmable controller uye mamwe maturusi ehungwaru, terminal actuators uye control software, nezvimwewo, inoumba yakavhurika-loop kana yakavharwa-loop AC yekumhanyisa mutemo. system.Iri rudzi rwekumhanyisa kudzora sisitimu iri kutsiva yechinyakare mechanicha yekumhanyisa kudzora uye DC yekumhanyisa kudzora chirongwa mune zvisati zvamboitika, izvo zvinovandudza zvakanyanya dhigirii remakina otomatiki uye kushanda zvakanaka kwekugadzira, uye inoita kuti michina yacho iwedzere kudiki uye nehungwaru.
Tichitarisa mashandisirwo emagetsi emamota ese mumaindasitiri ekushandisa, angangoita makumi manomwe muzana emota anoshandiswa mu fan uye pombi mitoro.Kubatsira kwekuchengetedza simba uye kuderedzwa kwemhepo kune mitoro yakadaro iri pachena: mabhenefiti makuru ehupfumi uye magariro anogara aripo.Zvichingobva pachinangwa chiri pamusoro, AC mota frequency yekushandura kasi regulation inoshandiswa zvakanyanya.Semuenzaniso, mune inverter air conditioner, kana tembiricha yakaiswa neair conditioner yadzikiswa, zvinongodiwa kudzora kumhanya kwemota kuderera uye kuderedza kubuda kwekutyaira simba.
Pamusoro pekuchengetedza simba uye kuve nyore kuita mukurumbira uye kushandisa, kusiyanisa frequency kumhanya-inotonga asynchronous motors ine mukana wekunyorova kutanga, uye hapana chikonzero chekuongorora kutanga kuita.Dambudziko chete rakakosha rinoda kugadziriswa ndere: kuchinjika kwemota kune isiri-sine wave simba kunofanirwa kuvandudzwa.
Frequency converter inoshanda musimboti
Iyo frequency converter yatinoshandisa inonyanya kutora AC-DC-AC modhi (VVVF frequency conversion kana vector control frequency conversion).Chekutanga, iyo magetsi frequency AC simba inoshandurwa kuita DC simba kuburikidza neinogadzirisa, uyezve iyo DC simba inoshandurwa kuita AC ine inodzoreka frequency uye voltage.simba rekupa mota.Dunhu reiyo frequency converter rinowanzo kuumbwa nezvikamu zvina: kugadzirisa, yepakati DC link, inverter uye kutonga.Chikamu chekugadzirisa chikamu chetatu-chikamu bhiriji risingadzoreki rectifier, iyo inverter chikamu iGBT matatu-chikamu bhiriji inverter, uye inobuda iPWM waveform, uye yepakati DC link iri kusefa, DC simba rekuchengetedza uye buffering reactive simba.
Frequency control yave iyo mainstream yekumhanyisa control scheme, inogona kushandiswa zvakanyanya mukutepfenyura isina nhanho mumaindasitiri akasiyana.Kunyanya nekuwedzera kupararira kwekushandiswa kwema frequency converters mumunda wekutonga kwemaindasitiri, kushandiswa kwema frequency conversion motors kwave kuwedzera kupararira.Zvinogona kutaurwa kuti nekuda kwehukuru hwema frequency ekushandura mota mune frequency shanduko yekutonga pamusoro peakajairika mota, pese panoshandiswa ma frequency converters, isu Hazvina kuoma kuona nhamba yeiyo frequency conversion mota.
Iyo inosiyana frequency mota bvunzo inowanzoda kupihwa simba neinoshandura frequency.Sezvo iyo inobuda frequency yeiyo frequency converter ine akasiyana akasiyana, uye yakabuda PWM wave ine akapfuma maharmonics, yechinyakare transformer uye simba mita haichakwanise kuzadzisa kuyerwa kwezvinodiwa bvunzo.Frequency kushandura simba analyzer uye frequency kushandura simba transmitter, nezvimwe.
Iyo yakajairwa mota yekuyedza bhenji imhando nyowani yebvunzo sisitimu yakatangwa yemotokari simba rekuvandudza hurongwa mukupindura kuchengetedza simba uye kuderedzwa kwekubuda.Iyo yakajairwa mota yekuyedza bhenji inomisa uye zviridzwa iyo yakaoma sisitimu, inovandudza kuvimbika kweiyo sisitimu, inorerutsa kuisirwa uye kugadzirisa maitiro, uye inoderedza mutengo wesystem.
Frequency kutendeuka yakakosha mota maficha
Kirasi B tembiricha yekukwira dhizaini, F kirasi insulation kugadzira.Kushandiswa kwepolymer insulation zvinhu uye vacuum pressure yakamisikidzwa varnish yekugadzira maitiro uye kushandiswa kweyakakosha dhizaini chimiro kunoita kuti magetsi emagetsi ekudzivirira amire magetsi uye simba remuchina kuvandudzwa zvakanyanya, izvo zvinokwana kumhanyisa-kumhanya kwemota uye kuramba kune yakakwirira. -frequency current impact uye voltage ye inverter.Kukuvadza kune insulation.
Iyo frequency yekushandura mota ine yakakwira chiyero mhando, uye iyo vibration level iR-level.Iko kurongeka kwemagetsi kwezvikamu zvemakina kwakakwira, uye yakakosha yakakwirira-chaiyo mabhengi anoshandiswa, anogona kumhanya nekumhanya.
Frequency kushandura mota inotora kumanikidzirwa kufefetera uye kupisa kupisa sisitimu, uye ese anotengeswa kunze kwenyika axial kuyerera mafeni ari ekupedzisira-akanyarara, hupenyu hwakareba, uye mhepo ine simba.Iva nechokwadi chekushanda kwekupisa kwemota pane chero kumhanya, uye ziva yakakwirira-kumhanya kana yakaderera-kumhanya kwenguva refu kushanda.
Kana ichienzaniswa neyechinyakare inosiyana frequency mota, ine yakakura yekumhanyisa renji uye yepamusoro dhizaini mhando.Iyo yakakosha magineti dhizaini inowedzera kudzvanya yakakwira-yakarongeka harmonic magineti kusangana nezviratidzo zvekugadzira zvebroadband, kuchengetedza simba uye kuderera ruzha.Iyo ine huwandu hwakasiyana hwekugara torque uye simba rekumhanya kudzora maitiro, yakagadzikana yekumhanyisa mutemo, uye hapana torque ripple.
Iyo ine yakanaka parameter inoenderana neakasiyana ma frequency converter.Kubatira pamwe nevector control, inogona kuona zero-kumhanya kwakazara-torque, yakaderera-frequency yakakwira-torque uye yakakwirira-chaiyo yekumhanyisa kudzora, kudzora chinzvimbo uye nekukurumidza simba rekuita mhinduro.
Nguva yekutumira: Zvita-05-2023
