IBLOG

Ama-algorithms ajwayelekile wokulawula imoto we I-BLDC brushless DC motors

Amamotho e-Brushless DC ayazishintsha (ukuguqulwa kokuziqondisa), ngakho ayinkimbinkimbi kakhulu ukuwalawula.
Ukulawulwa kwezimoto ze-BLDC kudinga ukuqonda indawo ye-rotor kanye nendlela yokulungiswa nokuqondisa kwenjini. Ukuze ulawule isivinini se-loop evaliwe, kunezidingo ezimbili ezengeziwe zokuthi isivinini se-rotor/noma i-motor current kanye nesignali ye-PWM ilinganiswe ukuze kulawulwe isivinini semoto futhi amandla.
I-brushless DC motor encaneamamotho angasebenzisa amasignali e-PWM onqenqemeni - noma aphakathi nendawo ngokwezidingo zohlelo lokusebenza.Izinhlelo zokusebenza eziningi zidinga kuphela ukusebenza okuhlukahluka kwesivinini futhi zizosebenzisa ama-array onqenqema ayisithupha azimele esignali ye-PWM.Lokhu kunikeza ukulungiswa okuphezulu kakhulu ngangokunokwenzeka.Uma uhlelo lokusebenza ludinga ukuma kweseva, ukubhuleka kwamandla, noma ukuguqulwa kwamandla, ukusetshenziswa kwesiginali ye-PWM emaphakathi ehambisanayo kuyanconywa.
Ukuze uzwe ukuma kwe-rotor, i-BLDC ithatha inzwa yomphumela weHholo ukuze inikeze ukungeniswa kwesikhundla esiphelele.Lokhu kuholela ekusetshenzisweni kwemigqa eyengeziwe kanye nezindleko eziphakeme.Ukulawula i-BLDC engenazinzwa kuqeda isidingo senzwa yeHholo futhi esikhundleni salokho kusebenzisa amandla angemuva e-electromotive (EMF ) yemoto ukubikezela indawo ye-rotor.Ukulawula okungenazinzwa kubalulekile ekusetshenzisweni kwejubane eliguquguqukayo elishibhile njengamafeni namaphampu.Ekusetshenzisweni kwe-BLDC motor, isiqandisi kanye ne-compressor ye-air conditioning nazo zidinga ukulawula okungenalutho.
Ukufakwa nokugcwalisa isikhathi esingalayishiwe
Amamotho amaningi e-BLDC awadingi i-PWM ehambisanayo, ukufakwa kwesikhathi esingalayishiwe, noma isinxephezelo sesikhathi esingalayishiwe.Ukuphela kwezinhlelo zokusebenza ze-BLDC ezingase zidinge lezi zici ama-servo motors e-BLDC asebenza kahle kakhulu, ama-sinusoidal excited BLDC motors, brushless AC, noma PC synchronous. izinjini.
Lawula i-algorithm
Ama-algorithms amaningi okulawula ahlukene asetshenziselwa ukunikeza ukulawula amamotho e-BLDC.Ngokujwayelekile, ama-transistors kagesi asetshenziswa njengezilawuli ezilandelanayo zokulawula i-motor voltage.Le ndlela ayisebenzi uma ushayela amamotho anamandla.Amamotho anamandla aphezulu kumele alawulwe yi-PWM futhi adinga isilawuli esincane ukuze hlinzeka ngemisebenzi yokuqala nokulawula.