8inch 10inch 11inch 12inch 36V 48V Hub Motors
Ngokuvamile, okwamanje okudingwa yinjini ekuqaleni sikhulu kakhulu kunesamanje esilinganiselwe, esingaba izikhathi ezingu-6 zamanje ezilinganiselwe.Ngaphansi komsinga onjalo, injini izoba nomthelela omkhulu kunalapho isebenza ngokujwayelekile.Umthelela onjalo uzokwandisa ukulahleka kwenjini, unciphise impilo yemoto, futhi ubangele nokulimala kwezinye izingxenye ngaphakathi komshini lapho i-current inkulu kakhulu.Ngaphansi kwezimo ezinjalo, abantu baqala ukunaka ucwaningo lwesiqalo esithambile se-motor, benethemba lokwenza injini iqale kahle nangokushelela ngobuchwepheshe obuhlobene.
1, isimiso motor soft isiqalo
Kubuciko bangaphambilini, ucwaningo olumayelana ne-motor soft start ngokuyinhloko ukulawula ukuqala kwe-asynchronous motor yezigaba ezintathu ze-AC, futhi isiqalo esithambile se-motor sibonakala ngokusebenzisa i-asynchronous motor yezigaba ezintathu ze-AC, enikeza isivikelo ekuqaleni. nokuma kwenjini.Lobu buchwepheshe busetshenziswe kakhulu emkhakheni wezimboni.Embonini, lobu buchwepheshe busetshenziswe esikhundleni sokuqalisa kwe-Y/△ kwendabuko, futhi imiphumela emihle izuziwe.
I-Thyristor parallel thyristor (SCR) ehlanekezelwa kathathu ingalungisa ugesi wesiqalisi esithambile, futhi iyisilawuli samandla kagesi sesiqalisi esithambile.Lapho i-thyristor ehambisanayo emithathu-reverse ixhunywe kusekethe, idlala indima yokuxhuma phakathi kokunikezwa kwamandla kanye ne-stator yenjini.Uma ichofozwa ukuze iqale, i-voltage ngaphakathi kwe-thyristor izokhuphuka kancane kancane, futhi injini izosheshisa kancane kancane ngaphansi kwesenzo se-voltage.Lapho isivinini sokugijima sifinyelela isivinini esidingekayo, i-thyristor izovulwa ngokugcwele.Ngalesi sikhathi, i-voltage echofoziwe ifana ne-voltage elinganiselwe, engakwazi ukuqaphela kuphela Ngaphansi kwezimo ezinjalo, injini isebenza ngokujwayelekile ngaphansi kokuvikelwa kwe-thyristor, okwenza injini ihlupheke nomthelela omncane nokulahlekelwa, ngaleyo ndlela yandise kakhulu impilo yesevisi. yenjini nokugcina injini isesimweni esihle sokusebenza.

2. Ubuchwepheshe bokuqalisa obuthambile be-asynchronous motor
2.1, i-thyristor AC voltage elawula ukuqala okuthambile
I-voltage ye-AC elawula isiqalo esithambile se-thyristor ngokuyinhloko ishintsha imodi yokuxhuma ye-thyristor, iguqule imodi yokuxhuma evamile ibe ukuxhuma kumawindi amathathu, ngaleyo ndlela ibone ukunikezwa kwamandla ku-thyristor ngokuhambisana.I-Thyristor soft starter inokuguquguquka okuqinile, ngakho abasebenzisi bangenza izinguquko ezifanele injini ngokwezidingo zabo ezihlukene, futhi benze imodi yokuqala yemoto ifaneleke kakhulu izidingo zabo ngoshintsho oluhambisanayo.

2.2.Umgomo wokulungisa wezigaba ezintathu kagesi we-AC olawula isiqalisi esithambile
I-voltage yezigaba ezintathu ze-AC elawula isiqalisi esithambile sisebenzisa ngokugcwele ijika lesici se-voltage ye-AC ukuqalisa injini.Umqondo wokusebenzisa ijika lesici se-voltage ye-AC ukuze ubone ukuqala okuthambile kwenjini njengalona umqondo oyinhloko wesiqalisi esithambile semoto.Ikakhulukazi isebenzisa amapheya amathathu wama-thyristors ngaphakathi kwenjini ukuxhuma injini ngochungechunge, futhi ishintsha isikhathi sokuvula ngokulawula i-trigger pulse kanye ne-trigger angle.Kulokhu, i-terminal yokufaka ye-motor ingagcina i-voltage eyanele ukulawula ukuqala kwe-motor.Lapho i-motor iqaliswa, i-voltage izoba i-voltage elinganisiwe, khona-ke izixhumi ezintathu zokudlula zizohlanganiswa, futhi injini ingaxhunywa kugridi.
3. Izinzuzo zesiqalo esithambile kunesiqalo esivamile
"Ukuqala okuthambile" akukwazi nje ukunciphisa kakhulu umthelela wokuqala wesistimu yokudlulisela ngokwayo futhi kwandise impilo yesevisi yezingxenye ezibalulekile, kodwa futhi kufinyeze kakhulu isikhathi somthelela wemoto yokuqala yamanje, ukunciphisa umthwalo womthelela oshisayo kunjini kanye nomthelela. kugridi yamandla, ngaleyo ndlela konga amandla kagesi futhi kwandise impilo yesevisi yemoto.Ngaphezu kwalokho, ngokusebenzisa ubuchwepheshe "bokuqala obuthambile", injini enamandla amancane ingakhethwa ekukhethweni kwemoto, ngaleyo ndlela inciphise ukutshalwa kwezimali okungadingekile.Ukuqala kwenkanyezi kuncike ekushintsheni izintambo zokuzungeza i-motor, ngaleyo ndlela kushintshe i-voltage ekuqaleni.I-voltage ekuqaleni iyancishiswa, okwenza amandla okuqalisa abe mncane, futhi nomthelela ebhasini ekuqaleni uyehla, ukuze ukwehla kwamandla kagesi ebhasini ekuqaleni kube phakathi kwebanga elivumelekile (kudingeka ukuthi ukwehla kwamandla kagesi ebhasi akumele kudlule u-10% wamandla kagesi alinganisiwe).Ukuqala kokuwohloka ngokuzenzakalela kunganciphisa okwamanje ekuqaleni, okufinyelelwa ngokushintsha impompi kagesi ye-auto-transformer.
Isibonelo, izidingo zegridi yamandla ekuqaleni kwamaqembu angu-4 wama-kilowatts angu-36.Ukusebenza okuvamile kwe-36 kW motor cishe ku-70A, kanti okwamanje ukuqala okuqondile cishe izikhathi ezingu-5 zamanje evamile, okungukuthi, okwamanje okudingekayo ukuze amaqembu amane ama-motor angu-36 kW aqale ngesikhathi esifanayo yi-1400A;Isidingo sokuqala kwenkanyezi yegridi yamandla izikhathi ezingu-2-3 zamanje evamile kanye no-560-840A wamanje wegridi yamandla, kodwa kuzoba nomthelela omkhulu ku-voltage ekuqaleni, okulingana nezikhathi ezingaba ngu-3 i-voltage evamile.Isidingo sokuqala okuthambile kwegridi yamandla futhi izikhathi ezi-2-3 zamanje ezijwayelekile, okungukuthi, 560-840A.Kodwa-ke, umthelela wesiqalo esithambile ku-voltage cishe u-10%, ngokuyisisekelo ongeke ube nomthelela omkhulu.