Ulawulo lwemoto yeBrushless dc kunye nendlela yokulawula isantya

Dc brushless motorisakhiwo sinengqiqo, isantya salo ngokusisiseko sizinzile ngakumbi, ngoko ngokuqhelekileyo, kunqabile ukuya kulawulo lwesantya esikhulu.Ngenxa yokuba i-motor inoluhlu olubanzi lwezicelo kwaye inokusetyenziswa ngoomatshini abaninzi, kuyimfuneko ukulungelelanisa isantya sayo ngokwezihlandlo ezahlukeneyo. Kodwa ibrushless dc yolawulo lwemoto kunye nendlela yokulawula isantya idinga wonke umntu ukuba afunde, ukuze enze isicelo ngokukhawuleza:

1. Ngokulawula umyalelo apho ikhoyili inikwe amandla, i-coil echasayo ihlulwe ibe liqela kwaye ikhoyo ngoku inamandla okuvelisa intsimi yamagnetic kwicala elifanayo.

2. Inani leepali ze-brushless dc motor zithathu, ukwenzela ukuba iperi nganye "yezibonda zemagnetic" iqhutywe ngendlela ethile ukuze kuphunyezwe umphumo wokujikeleza kwemagnethi. embindini uhlala enomkhwa wokugcina intsimi yamagnetic kwicala elifanayo kwaye iya kujikeleza kunye nentsimi yamagnetic ejikelezayo.

I-H1H2H3 yizinzwa ezintathu zeHolo ezibekwe kwi-gap yomoya we-coil yokuvuselela, esetyenziswa njengento yokubona intsimi yamagnetic. I-voltage inokutshintshwa ngokwendlela ye-magnetic field, kwaye isiphumo sisignali yedijithali.

3. I-coil ye-stator inikwe amandla ngokulandelelana okulandelayo, kunye ne-rotor magnetic field kunye ne-stator magnetic field kufuneka ibe ne-Angle.Akukho mfuneko yokugweba ukuba i-brushless dc motor iqaliswe nje, kufuneka nje uphumeze umyalelo olandelayo ngokutsho. kwimo yokusebenza ithunyelwe ngasemva yinzwa yeHolo.

Umyalelo wayo kukuthumela izibini ezintathu zekhoyili kunye nokucima, ezi zitshintshi zifezekiswa nge-transistor.

Ukujikeleza kwe-BLDC yamanqanaba amathathu kunokufezekiswa ngokunika amandla okanye ukusika izibini ezintathu zeetransistors ngendlela ethile.

4. Njengoko i-rotor ijikeleza, amandla anyanzelwayo ekhoyili nganye ahamba ukusuka phezulu ukuya kwi-zero kwaye abuyele kwakhona.Ngenxa yokuba xa i-coil inikwe amandla kwicala elichaseneyo, i-reverse ye-electromotive force iya kuthintela i-voltage reverse, ngoko ke inxalenye yamaza e-trapezoidal ukuvela.I-voltage echanekileyo kunye ne-negative ye-trapezoidal inxalenye ye-zero ichasene, ngoko ke imeko yokusebenza ye-motor stator inokumiselwa ngokufumanisa i-voltage efanelekileyo kunye ne-negative emva komlinganisi wombane.

Ekubeni indawo ye-zero iphakathi kwe-trapezoid, ukujikeleza kwe-BLDC kunokulawulwa emva kokuba isignali yokulawula ukulandelelana kwexesha elihambelanayo iphuma emva kokulibaziseka kwe-30 °. qhuba iIBLDC.Ukuba i-waveform ilungile, ii-coil voltage curves ezintathu zinokufumaneka ngokudibanisa ngqo i-voltage.Ngoko i-brushless dc motor inokulawulwa.

5. Gqiba isalathiso sokuqala, unike amandla i-coil ephantsi kweso sihlandlo kuqala, yenza i-rotor iphendukele kwindawo yokuqala ngexesha elifutshane, kwaye unike amandla i-motor ngokulandelelana kwezenzo ezilandelayo.

Ukuze kuphuculwe ukusetyenziswa kakuhle kwe-brushless dc motor, kufuneka sifunde ngokwendawo yokusetyenziswa eyahlukileyo, ulawulo olwahlukileyo kunye nolawulo lwesantya, ukuphucula ukusetyenziswa kakuhle kwemoto, ulawulo kunye nendlela yokulawula isantya ingasetyenziswa ukulungisa isantya.