Indlela yokulawula i-motor ye-dc engenabhrashi kunye nendlela yokulawula isantya

Imoto engenabhrashi ye-DcUlwakhiwo lwayo lufanelekile, isantya sayo sizinzile ngakumbi, ngoko ke ngokubanzi, asikwazi ukulawulwa isantya esikhulu. Ngenxa yokuba imoto ineendlela ezininzi zokusetyenziswa kwaye ingasetyenziswa ngoomatshini abaninzi, kuyimfuneko ukulungisa isantya sayo ngokweemeko ezahlukeneyo. Kodwa indlela yokulawula isantya se-dc engenabhrashi ifuna wonke umntu afunde, ukuze isetyenziswe ngokukhawuleza:

1. Ngokulawula ulandelelwano apho ikhoyili inikwa amandla khona, ikhoyili echaseneyo yahlulwe yaba liqela kwaye umsinga unikwa amandla ukuvelisa intsimi yemagnethi kwicala elinye.

2. Inani leepali zemoto ye-dc engenamabhrashi lithathu, ukuze isibini ngasinye "seepali zemagnethi" ziqhutywe ngendlela ethile ukuze kufezekiswe isiphumo sokujikeleza kwentsimi yemagnethi. Phantsi kwesenzo sentsimi yemagnethi, i-rotor yemagnethi esisigxina embindini isoloko inesimo sokugcina intsimi yemagnethi kwicala elinye kwaye iya kujikeleza nentsimi yemagnethi ejikelezayo.

I-H1H2H3 zii-sensors ezintathu zeHall ezibekwe kwindawo yomoya ye-excitation coil, esetyenziswa njengesixhobo sokufumanisa intsimi yemagnethi. I-voltage ingatshintshwa ngokwendlela intsimi yemagnethi ekhokela ngayo, kwaye isiphumo sisignali yedijithali.

3. I-stator coil inikwa amandla ngokwendlela elandelayo, kwaye i-rotor magnetic field kunye ne-stator magnetic field kufuneka zibe ne-Angle. Akukho mfuneko yokugweba ukuba i-brushless dc motor isandula ukuqaliswa na, kufuneka nje usebenzise umyalelo olandelayo ngokwendlela yokusebenza ethunyelwe ngayo yi-Hall sensor.

Umyalelo wayo kukuthumela ii-coil ezimbini zivuliwe zize zicinywe, ezi switshi zenziwa nge-transistor.

Ukujikeleza kwe-BLDC yesigaba esithathu kunokufezekiswa ngokunika amandla okanye ukunqumla ii-transistors ezintathu ngendlela ethile.

4. Njengoko i-rotor ijikeleza, amandla abangelwa yi-coil nganye asuka kweyona iphezulu ukuya kwe-zero aze abuye kwakhona. Kuba xa i-coil inikwe amandla kwicala elichaseneyo, amandla e-electromotive angasemva aya kuthintela i-voltage engasemva, ngoko ke inxalenye ye-trapezoidal wave iya kuvela. I-voltage elungileyo nengalunganga yenxalenye ye-trapezoidal ye-zero ichasene, ngoko ke imeko yokusebenza ye-motor stator inokufunyanwa ngokufumanisa i-voltage elungileyo nengalunganga emva kwe-voltage comparator.

Ekubeni inqaku le-zero liphakathi kwe-trapezoid, ukujikeleza kwe-BLDC kunokulawulwa emva kokuba isignali yokulawula yexesha elihambelanayo ikhutshwe emva kokulibaziseka kwe-30°. Le ndlela yokulawula ayifuni i-Hall sensor, kwaye iingcingo ezintathu zinokuqhubaI-BLDC.Ukuba i-waveform ifanelekile, ii-coil voltage curves ezintathu zinokufunyanwa ngokuhlanganisa i-voltage ngokuthe ngqo. Ngoko ke i-brushless dc motor inokulawulwa.

5. Misela indlela yokuqalisa, qala ngokunika amandla ikhoyili esezantsi kuloo ndlela, yenza i-rotor ijike iye kwindawo yokuqala ngexesha elifutshane, kwaye unike amandla i-motor ngokwendlela elandelayo yezenzo.

Ukuze siphucule ukusebenza kakuhle kwemoto ye-dc engenamabhrashi, kufuneka sifunde ukuba ngokweendawo ezahlukeneyo zokusetyenziswa, ulawulo olwahlukileyo kunye nolawulo lwesantya, ukuphucula ukusebenza kakuhle kwemoto, indlela yokulawula kunye nolawulo lwesantya inokusetyenziswa ukulungisa isantya.