Sele ibe sisimo esingaguqukiyo sokuqhuba i-motor nge-inverter.Kweyona nkqubo yokusetyenziswa, ngenxa yobudlelwane obungenangqiqo phakathi kwe-inverter kunye ne-motor, ezinye iingxaki zihlala zisenzeka.Xa ukhetha i-inverter, kufuneka uqonde ngokupheleleyo iimpawu zomthwalo wezixhobo eziqhutywa yi-inverter.

Sinokwahlula oomatshini bokuvelisa babe ziindidi ezintathu: umthwalo wamandla ongaguqukiyo, umthwalo ongaguqukiyo wetorque, kunye nefeni kunye nomthwalo wempompo yamanzi.Iindidi ezahlukeneyo zomthwalo zineemfuno ezahlukeneyo zee-inverters, kwaye kufuneka sizidibanise ngokufanelekileyo ngokwemiqathango ethile.

I-torque efunwa yi-spindle yesixhobo somatshini kunye ne-coiler kunye ne-uncoiler kwi-rolling Mill, umatshini wephepha, kunye nomgca wokuvelisa ifilimu yeplastiki ngokuqhelekileyo ihambelana ngokungafaniyo nesantya sokujikeleza, okuyiyona nto ingumthwalo wamandla rhoqo.Ipropathi yamandla eqhubekayo yomthwalo kufuneka ibe ngokwemiqathango yoluhlu oluthile lwesantya.Xa isantya siphantsi kakhulu, sithintelwe ngamandla omatshini, siya kutshintsha kumthwalo oqhubekayo we-torque ngesantya esiphantsi.Xa isantya semoto sihlengahlengiswa ngokuguquguquka kwamagnetic rhoqo, lulawulo lwesantya setorque rhoqo;xa isantya sibuthathaka, kukulawula isantya samandla rhoqo.

Iifeni, iimpompo zamanzi, iimpompo zeoyile kunye nezinye izixhobo zijikeleza nge-impeller.Njengoko isantya siyancipha, i-torque iyancipha ngokwesikwere sesantya, kwaye amandla afunwa ngumthwalo alingana namandla wesithathu wesantya.Xa umthamo womoya ofunekayo kunye nesantya sokuhamba sincitshiswa, i-converter ye-frequency converter ingasetyenziselwa ukulungelelanisa umthamo womoya kunye nesantya sokuhamba ngendlela yokulawula isantya, esinokonga kakhulu umbane.Ekubeni amandla afunekayo ngesantya esiphezulu akhula ngokukhawuleza kunye nesantya sokujikeleza, i-fan kunye nemithwalo yepompo akufanele iqhutywe phezu kwe-frequency yamandla.

I-TL ihlala ingatshintshi okanye ingatshintshi nakwesiphi na isantya sokujikeleza.Xa i-inverter iqhuba umthwalo kunye ne-torque eqhubekayo, i-torque ngesantya esiphantsi kufuneka ibe nkulu ngokwaneleyo kwaye ibe nomthamo owaneleyo wokulayisha.Ukuba kuyimfuneko ukuqhuba ngesantya esiphantsi kwisantya esizinzileyo, ukusebenza kobushushu bokutshatyalaliswa kwemoto kufuneka kuqwalaselwe ukuphepha i-motor ukuba ingatshiswa ngenxa yokunyuka kweqondo lokushisa.

Imiba ekufuneka ithathelwe ingqalelo xa ukhetha isiguquli samaza:

Xa i-motor frequency yamandla iqhutywa yi-inverter, okwangoku i-motor iya kwanda nge-10-15%, kwaye ukunyuka kweqondo lokushisa kuya kwanda malunga ne-20-25%.

Xa usebenzisa i-frequency converter ukulawula i-high-speed motor, i-harmonics eninzi iya kuveliswa.Kwaye ezi zi-harmonics eziphezulu ziya kwandisa ixabiso langoku lemveliso ye-inverter.Ke ngoko, xa ukhetha isiguquli sefrikhwensi, kufuneka ibe yigiya enye enkulu kunaleyo yemoto eqhelekileyo.

Xa kuthelekiswa neenjini zekheji zesquirrel eziqhelekileyo, iimotor zamanxeba ziqhelekile kwiingxaki zokukhubeka, kunye nesiguquli esinamandla esinomthamo omkhulu kunesiqhelo kufuneka sikhethwe.

Xa usebenzisa i-frequency converter ukuqhuba i-motor yokunciphisa i-gear, uluhlu lokusetyenziswa lulinganiselwe yindlela yokuthambisa inxalenye ejikelezayo yegiya.Kukho umngcipheko wokuphelelwa yi-oyile xa isantya esibekiweyo sigqithiswa.

● Ixabiso langoku lemoto lisetyenziswa njengesiseko sokukhethwa kwe-inverter, kwaye amandla alinganisiweyo e-motor kuphela kwireferensi.

● Ukuveliswa kwe-inverter kucebile kwi-harmonics ephezulu, eya kunciphisa amandla ombane kunye nokusebenza kakuhle kwemoto.

● Xa i-inverter idinga ukuhamba ngeentambo ezinde, impembelelo yeentambo ekusebenzeni kufuneka ithathelwe ingqalelo, kwaye iintambo ezikhethekileyo kufuneka zisetyenziswe xa kuyimfuneko.Ukuze wenze le ngxaki, i-inverter kufuneka ikhulise ukhetho lwesixhobo esinye okanye ezimbini.

● Ngezihlandlo ezikhethekileyo ezifana nokushisa okuphezulu, ukutshintsha rhoqo, ukuphakama okuphezulu, njl., umthamo we-inverter uya kuhla.Kucetyiswa ukuba i-inverter kufuneka ikhethwe ngokwenyathelo lokuqala lokwandiswa.

● Xa kuthelekiswa nonikezelo lwamandla ombane, xa i-inverter iqhuba i-motor synchronous, umthamo wokukhupha uya kuncitshiswa nge-10 ~ 20%.

● Kwimithwalo enokuguquguquka okukhulu kwetorque enje ngeecompressors kunye ne vibrators, kunye nencochoyi yomthwalo onjengeempompo zehydraulic, kufuneka uqonde ngokupheleleyo ukusebenza kwamaza ombane kwaye ukhethe inverter enkulu yamaza.