Kune mota dzakabatanidzwa kune frequency converters, iyo yakanyanya tembiricha yepasi inotemwa nemaitiro ekuyedza pasi pemamiriro asina kunaka
- Mamiriro mazhinji asina kunaka
(1) Torque / kumhanya maitiro
Kumamotor anoshandiswa kune akasiyana torque mitoro, iyo yakanyanya tembiricha yepasi inoyerwa pahukuru hwesimba pakumhanya kwakayerwa kukuru; kune mota dzinoshandiswa pakutakura mitsetse uye inogara ichiremerwa torque, iyo yakanyanya tembiricha yepasi inoyerwa zvishoma pane yakaderera uye yakanyanya kumhanya; kumamota anoshandiswa pakutakura mitoro yakaoma, iyo tembiricha yepamusoro inoyerwa zvishoma pane inflection point yekumhanya-torque curve.
(2) Kunyanya kupisa kwepamusoro kuchayerwa pane zvishoma uye zvakanyanya kumhanya pamagetsi anogara aripo.
(3) Kudonha kwemagetsi
Munguva yekugadzira uye kutumirwa kwechirongwa, kudonha kwevolti yezvinhu zvese kunoda kutariswa. Naizvozvo, ruzivo nezve kudonha kwevoltage ye frequency converter, sefa, kudonha kwevoltage pamwe netambo, sisitimu yekumisikidza uye frequency converter yekupinda voltage inofanirwa kunzwisiswa. Mirayiridzo yakagadziridzwa nemugadziri zvinoenderana neChitsauko 30 cheGB/T 3836.1-2021 "Explosive Atmospheres Chikamu 1: General Zvinodiwa Zvechishandiso" inofanirwa kupa ruzivo rwese rwakakosha kufambisa kuverengera / kusetwa kweiyo mashandiro emhando.
(4) Inverter kubuda maitiro.
Low switching frequency inowanzo wedzera tembiricha yemota. Mamiriro ekushanda akakosha anogona kudikanwa kuti ataure mashoma ekuchinja ma frequency; multilevel inverters (3 kana yepamusoro) kazhinji inokonzeresa kudzikiswa kwemota.
(5) Inotonhorera Yepamusoro tembiricha yepasi yakayerwa nehudiki yakayerwa kuyerera/hukuru hwakatemerwa tembiricha inotonhorera; Mamiriro ekushanda akakosha anogona kudikanwa kuti utaure zvinotonhorera zvinodiwa.
- Nzira dzekuedza
(1) Yakatsaurirwa inverter mota dzinofanirwa kuyedzwa neyakagadzirirwa inverter. Kana iyo inverter inobuda voltage uye iyo harmonic yemukati yeinobuda voltage waveform yakanyatsozvimiririra ye ± 10% yekuisa voltage kusiyanisa uku ichichengetedza yakatemerwa mota yekupinza yazvino (inotsamira) uye voltage uye frequency, yakajairwa ± 10% yekuisa voltage kusiyanisa haifanirwe kushandiswa.
(2) Ma inverters akafanana Kana paine ruzivo rwakakwana rwekuona kufanana, mota inogona kuedzwa nemainverters akafanana. Kazhinji, zvimwe zvinhu zvekuchengetedza zvinoshandiswa kuverengera kufanana sezvakakodzera. Kana iyo inverter inobuda voltage uye iyo harmonic yemukati yeinobuda voltage waveform yakazvimiririra yakazvimirira pa ± 10% yekuisa voltage kusiyanisa uku ichichengetedza yakayerwa mota yekupinza yazvino (inotsamira) uye voltage uye frequency reshiyo, yakajairwa ± 10% yekuisa voltage kusiyanisa haifanirwe kushandiswa.
(3) Sinusoidal voltage motors haidi kuongororwa neinverter yakafanana, asi inogona kuongororwa ne sinusoidal voltage pasi pemamiriro ose anotevera: iyo inotarisirwa mutoro torque inoenzanirana nesquare yekumhanya; iyo mota inofanirwa kuiswa kune yakanyanya kuremerwa pakumhanya kwakayerwa; iyo mota yekumhanyisa renji iri pakati pe40% ne100% yehupamhi yakayerwa kumhanya;
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