Sei Yakaneta Magnetic Kudzora Inodikanwa kune Yakakwira-kumhanya Motors?

01. MTPA uye MTPV
Permanent magineti synchronous mota ndiyo musimboti wekutyaira mudziyo wemagetsi emagetsi emagetsi emagetsi muChina. Zvinonyatsozivikanwa kuti pakumhanya kwakaderera, inogara magineti synchronous mota inotora yakakwira torque ikozvino ratio control, zvinoreva kuti yakapihwa torque, iyo yakaderera synthesized ikozvino inoshandiswa kuizadzisa, nekudaro ichidzikisa kurasikirwa kwemhangura.

Saka pakumhanya kwakanyanya, hatigone kushandisa MTPA macurves ekudzora, isu tinofanirwa kushandisa MTPV, inova iyo yakanyanya torque voltage ratio, yekutonga. Kureva kuti, pane imwe kumhanya, ita kuti mota ibudise iyo yakanyanya torque. Zvinoenderana nepfungwa yekutonga chaiko, yakapihwa torque, iyo yakanyanya kumhanya inogona kuwanikwa nekugadzirisa iq uye id. Saka voltage inoratidzwa kupi? Nekuti iyi ndiyo yakanyanya kumhanya, iyo voltage muganho denderedzwa yakagadziriswa. Chete nekutsvaga iyo yakanyanya simba poindi pane ino muganhu denderedzwa ndipo panogona kuwanikwa torque point, iyo yakasiyana neMTPA.

02. Mamiriro ekutyaira

Kazhinji, painotendeuka velocity (inozivikanwawo seyo base velocity), iyo magineti inotanga kupera simba, inova point A1 mumufananidzo unotevera. Naizvozvo, panguva ino, reverse electromotive simba richava rakakura. Kana iyo magnetic field isina kusimba panguva ino, tichifunga kuti pushcart inomanikidzwa kuwedzera kukurumidza, inomanikidzira iq kuti ive yakaipa, isingakwanisi kuburitsa torque mberi, uye kumanikidzwa kupinda mumamiriro ekugadzira magetsi. Ehe, iyi poindi haigone kuwanikwa pane ino girafu, nekuti ellipse iri kuderera uye haigone kugara panzvimbo A1. Isu tinogona chete kuderedza iq pamwe chete neellipse, kuwedzera id, uye kuswedera pedyo nenzvimbo A2.

03. Mamiriro ekugadzira magetsi

Nei kugadzirwa kwemagetsi kuchidawo isina simba magineti? Magineti akasimba haafanire kushandiswa kugadzira iq yakakura kana uchigadzira magetsi nekumhanya kwakanyanya? Izvi hazvigoneke nekuti pakumhanya kwakanyanya, kana pasina simba remagineti risina kusimba, reverse electromotive force, transformer electromotive force, uye impedance electromotive force inogona kunge yakakura kwazvo, ichipfuura simba remagetsi, zvichikonzera mhedzisiro yakaipa. Iyi mamiriro iSPO isingadzoreki kugadzirisa simba rekugadzira! Naizvozvo, pasi pesimba rekumhanya-mhanya kugadzirwa, isina simba magnetization inofanirwawo kuitwa, kuitira kuti iyo inogadzirwa inverter voltage inodzoreka.

Tinogona kuzviongorora. Tichifunga kuti braking inotanga pa-high-speed yekushanda poyiti B2, iri mhinduro braking, uye kumhanya kunoderera, hapana chikonzero chekushaya simba remagnetism. Pakupedzisira, panguva B1, iq uye id inogona kuramba yakagadzikana. Nekudaro, sezvo kumhanya kuderera, iyo yakaipa iq inogadzirwa nereverse electromotive simba inova shoma uye shoma yakakwana. Panguva ino, kubhadharwa kwemagetsi kunodiwa kupinda mabhureki ekushandisa simba.

04. Mhedziso

Pakutanga kwekudzidza magetsi emagetsi, zviri nyore kukomberedzwa nemamiriro maviri: kutyaira nekugadzira magetsi. Muchokwadi, isu tinofanira kutanga tanyora madenderedzwa eMTPA neMTPV muuropi hwedu, uye toziva kuti iq uye id panguva ino ndeye mhedziso, inowanikwa nekutarisa reverse electromotive simba.

Saka, kana iq uye id inogadzirwa zvakanyanya neiyo sosi yemagetsi kana nereverse electromotive simba, zvinoenderana neiyo inverter kuwana mutemo. iq uye id zvakare ine zvisingakwanisi, uye mutemo haugone kudarika madenderedzwa maviri. Kana iyo yazvino muganhu denderedzwa ikapfuura, iyo IGBT ichakuvadzwa; Kana denderedzwa remagetsi rakapfuudzwa, magetsi achakuvadzwa.

Mukugadzirisa, iq uye id yechinangwa, pamwe neiyo iq chaiyo uye id, zvakakosha. Naizvozvo, nzira dzekuenzanisa dzinoshandiswa muinjiniya kuenzanisa iyo yakakodzera yekugovera reshiyo ye iq's id nekumhanya kwakasiyana uye torques inotangwa, kuitira kuti iwane kugona kwakanyanya. Zvinogona kuoneka kuti mushure mekutenderera kutenderedza, sarudzo yekupedzisira ichiri kuenderana neiyo engineering calibration.