Kubuda kwe matatu-chikamu asynchronous motainofanirwa kusarudzwa zvinoenderana nesimba rinodiwa nemuchina wekugadzira, uye matatu-chikamu asynchronous mota inofanirwa kushandiswa pasi peyakayerwa mutoro zvakanyanya sezvinobvira. Paunosarudza saizi yemagetsi emota, chinangwa chinofanira kunge chakakodzera.
Pamusoro pekusarudza nzira yehukuru hwesimba rematatu-chikamu asynchronous induction ACmotor.
Kusarudza matatu-chikamu asynchronous mota ine simba rakakodzera haizoparadze simba remagetsi kana kuremedza mota kwenguva yakareba. Kana simba remotokari rakanyanya kuderera. Chiitiko che "chingoro chidiki" chinoitika, chichiita kuti mota iremerwe kwenguva yakareba, zvichiita kuti zvinhu zvekudzivirira zvikuvadzwe nekupisa. Kunyangwe mota ikapisa, kana simba remota rakakurisa, chiitiko che "big marathon" chichaitika. Simba rayo remagetsi rinobuda rinogona kushandiswa zvizere, simba remagetsi uye simba hazvina kukwirira, uye zvakare inogadzira simba remagetsi.
Method 1: Shandisa fomula kuverenga simba rinodiwa neatatu-chikamu asynchronous mota:
- Kuenderera mberi kwekushanda nzira, simba rekutakura (kureva, simba riri pa mechanical shaft) Pl (kW) inozivikanwa. Nzira inotevera inogona kushandiswa kuverenga simba P (kW) yemotokari: P = P1 / n1 n2 Apo n1 isimba remuchina wekugadzira uye n2 isimba remotokari. Iri ndiro simba rekutumira.
Zvinoenderana nesimba rinowanikwa neformula iri pamusoro, nekuti simba uye zvichingodaro hazvidi kuti zvive zvakanyatsojeka, uye kurasikirwa kwemagetsi kwemagetsi kune zvimwe zvinoshanduka, iyo yakatemerwa simba remota yakasarudzwa inofanirwa kuenzana kana kuti yakakura zvishoma pane yakaverengerwa simba.
Kana anmota yemagetsi ine simba re 0.8 inosarudzwa, edza kutsvaga kuti ingani kilowatts iyo injini simba rinofanira kuva. Mhinduro: P = P1 / n1n2 = 3.95 / 0.7 * 0.8 = 7.1kW Sezvo pasina tsanangudzo ye7.1kW, 7.5kW matatu-phase asynchronous motor inosarudzwa.
- Kushanda kwenguva pfupi kwakayerwa mota. Kuenzaniswa nemota ine simba rakayerwa rakafanana panguva yekuenderera mberi kwekushanda. Zvidiki zvikamu, hombe yakakura torque, uye mutengo wakaderera. Kana mamiriro ezvinhu achibvumira, matatu-phase asynchronous motor ine chiyero chenguva pfupi yeS2 inofanira kusarudzwa zvakanyanya sezvinobvira.
- Kune matatu-chikamu asynchronous mota ine inopindirana yekushanda chiyero cheS3, sarudza saizi yekubuda. Zvinoenderana nehukuru hwemutoro wefreewheeling rate, matatu-chikamu asynchronous mota ine S3 inoshanda sisitimu inosarudzwa, iyo inonyanya kushandiswa kushanda kwepakati. Iyo yekuverengera formula yekuremedza Fs% kuenderera ndeye Fs%=tg/(Tg+ku)×100%, apo Tg ndiyo nguva yekushanda (chikamu: min), t ndiyo yekumisa torque (chikamu: min); Tg gumi kuenda kunguva yekutenderera (chikamu: min)
Method 2: Shandisa nzira yekufananidza kusarudza simba retatu-chikamu asynchronous mota. Iyo inonzi analogy, iyo inofananidzwa nekuita kwematatu-chikamu asynchronous mota inoshandiswa mumashini ekugadzira akafanana.
Iyo chaiyo nzira ndeye: nzwisisa simba rinoshandiswa nemichina yekugadzira yakafanana padyo neyuniti iyi kana mamwe mayuniti, uye wozosarudza mota dziri padyo kuti dziedze kushanda. Iko kushanda kweyedzo kunoitirwa kutarisa kana mota yakasarudzwa inoenderana nemuchina wekugadzira. Nzira yekuongorora ndeiyi: ita kuti hoist yemagetsi ityaire muchina wekugadzira kuti ushande. Shandisa clamp ammeter kuyera kushanda ikozvino kweatatu-chikamu asynchronous mota, uye enzanisa kuyerwa mhedzisiro neyakayerwa ikozvino yakatsanangurwa pane mota nameplate.
Nzira 3: Nzira yekuongorora yakakodzera:
- Kana iyo chaiyo yekushanda ikozvino yemotokari isingatsauki zvakanyanya kubva kune yakaratidzwa yezita ikozvino. Izvi zvinoratidza kuti kushanda kwemotokari yakasarudzwa yakakwana.
- Kana iyo chaiyo yekushanda ikozvino yemota inenge 70% yakaderera pane yakayerwa ikozvino inotsanangurwa pane nameplate. Zvadaro zvinoratidza kuti simba remotokari rakanyanyisa (kureva kuti "ngoro huru" inofanira kutsiviwa nemotokari ine simba rakaderera).
- Kana iyo yakayerwa mota inoshanda ikozvino inopfuura 40% yakakwira pane yakayerwa simba inoyerera inotsanangurwa pane nameplate. Izvi zvinoratidza kuti simba remotokari rakanyanya kuderera (kureva "ngoro diki"), ndiko kuti, mota hombe yemagetsi inofanira kutsiviwa.