Sei Kudzora Kwemagetsi Kusina Simba Kuchidikanwa paMota Dzinomhanya Zvikuru?

01. MTPA neMTPV
Mota ine magineti asingachinjiki zvachose ndiyo inonyanya kushandiswa muzviteshi zvemagetsi zvemotokari itsva muChina. Zvinozivikanwa kuti nekumhanya kwakaderera, mota ine magineti asingachinjiki inogara ichishandisa torque current ratio control, zvinoreva kuti kana ikapihwa torque, simba remagetsi rinoshandiswa pakuita izvi, nokudaro zvichideredza kurasikirwa kwemhangura.

Saka pakumhanya kwakanyanya, hatigone kushandisa ma MTPA curves ekudzora, tinofanira kushandisa MTPV, inova ndiyo torque voltage ratio yepamusoro, yekudzora. Kureva kuti, pakumhanya kwakati, ita kuti mota ibudise torque yepamusoro. Zvichienderana nepfungwa yekudzora chaiko, kana tichitarisa torque, kumhanya kwepamusoro kunogona kuwanikwa nekugadzirisa iq ne id. Saka voltage inoonekwa kupi? Nekuti iyi ndiyo kumhanya kwepamusoro, voltage limit denderedzwa inogadziriswa. Nekutsvaga chete nzvimbo yepamusoro yesimba padenderedzwa iri remuganhu ndipo panowanikwa nzvimbo yepamusoro yetorque, iyo yakasiyana neMTPA.

02. Mamiriro ekutyaira

Kazhinji, pakutenderera kwenhamba (inozivikanwawo se base velocity), simba remagineti rinotanga kuderera, rinova poindi A1 mumufananidzo unotevera. Saka, panguva ino, simba remagetsi rinodzokera shure richava rakakura. Kana simba remagineti risina kusimba panguva ino, tichifunga kuti pushcart inomanikidzwa kuwedzera kumhanya, inomanikidza iq kuva negative, isingakwanise kuburitsa torque yekumberi, uye inomanikidzwa kupinda mumamiriro ekugadzira simba. Ehe, poindi iyi haigone kuwanikwa pagirafu iyi, nekuti ellipse iri kudzikira uye haigone kugara papoindi A1. Tinogona chete kuderedza iq pamwe chete ne ellipse, kuwedzera id, uye kusvika pedyo nepoindi A2.

03. Mamiriro ekugadzira magetsi

Sei kugadzira magetsi kuchidawo simba remagineti risina simba? Simba remagineti harifanirwe kushandiswa kugadzira iq yakakura pakugadzira magetsi nekumhanya kwakanyanya here? Izvi hazvigoneke nekuti pakumhanya kwakanyanya, kana pasina simba remagineti risina simba, simba remagetsi re reverse electromotive, simba remagetsi re transformer electromotive, uye simba remagetsi re impedance rinogona kunge rakakura kwazvo, richipfuura simba remagetsi, zvichikonzera mhedzisiro yakaipa. Mamiriro aya ekugadzirisa magetsi eSPO asingadzoreki! Saka, pasi pesimba remagetsi rinomhanya zvakanyanya, simba remagineti risina simba rinofanirawo kuitwa, kuitira kuti voltage inogadzirwa ye inverter igone kudzorwa.

Tinogona kuzviongorora. Tichifunga kuti kubhuraki kunotanga panzvimbo yekushanda ine kumhanya kukuru B2, inova feedback braking, uye kumhanya kuchidzikira, hapana chikonzero chesimba remagineti. Pakupedzisira, panzvimbo yeB1, iq ne id zvinogona kuramba zvakagadzikana. Zvisinei, sezvo kumhanya kuchidzikira, negative iq inogadzirwa ne reverse electromotive force ichave shoma. Panguva ino, simba rinobhadharwa rinodiwa kuti ubhureki ushandise simba.

04. Mhedziso

Pakutanga kudzidza mota dzemagetsi, zviri nyore kutenderedzwa nemamiriro maviri: kutyaira nekugadzira magetsi. Kutaura zvazviri, tinofanira kutanga tanyora madenderedzwa eMTPA neMTPV muuropi hwedu, uye toziva kuti iq neid panguva ino hazvina mubvunzo, zvinowanikwa nekufunga nezve reverse electromotive force.

Saka, kana iq ne id zvichinyanya kugadzirwa nemagetsi kana kuti ne reverse electromotive force, zvinoenderana ne inverter kuti iwane regulation. iq ne id zvinewo miganhu, uye regulation haigone kudarika madenderedzwa maviri. Kana current limit denderedzwa ikadarika, IGBT ichakuvara; Kana voltage limit denderedzwa ikadarika, simba richakuvara.

Mukugadzirisa, iq ne id yechinangwa, pamwe neiq ne id chaiyo, zvakakosha. Nokudaro, nzira dzekugadzirisa dzinoshandiswa muinjiniya kugadzirisa chiyero chakakodzera chekugoverwa kwe iq's id nekumhanya kwakasiyana uye torque dzechinangwa, kuitira kuti pave nekushanda kwakanakisa. Zvinogona kuonekwa kuti mushure mekutenderera, sarudzo yekupedzisira ichiri kutsamira pakugadzirisa kweinjiniya.