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Umkhombandlela ongasemva we-BLDC motor

Ngaphambi kokungena emanzini Injini yeBLDC ukhetho lwempendulo, kubalulekile ukuqonda ukuba kutheni uzifuna.Iinjini ze-BLDC zinokuqwalaselwa kwisigaba esinye, isigaba esibini kunye nesigaba sesithathu;Ubumbeko oluqhelekileyo lukwinqanaba lesithathu.Inani lezigaba lihambelana nenani le-stator windings, ngelixa inani leepali ze-rotor magnetic linokuba naliphi na inani ngokuxhomekeke kwisicelo. iimfuno.Njengoko i-rotor ye-BLDC motor ichaphazeleka kwizibonda ze-stator ezijikelezayo, indawo ye-stator pole kufuneka ilandelwe ukuze iqhube ngokufanelekileyo izigaba ezintathu zeemoto.Ngenxa yale njongo, umlawuli wemoto usetyenziselwa ukuvelisa imowudi ye-6-step commutation. izigaba ezintathu zeemoto.La manyathelo mathandathu (okanye abahambi) bahambisa intsimi ye-electromagnetic, nto leyo ebangela ukuba imagnethi esisigxina yerotor ishukumise i-motor shaft.

Ngokwamkela olu landelelwano luqhelekileyo lokutshintsha kwemoto, umlawuli wemoto unokusebenzisa isiginali ye-high-frequency pulse wide modulation (PWM) ukunciphisa ngokufanelekileyo umbane ophakathi othwalwa yimoto kwaye ngaloo ndlela utshintshe isantya semoto. Ukongeza, olu seto luphucula kakhulu. uyilo lokuguquguquka ngokuba nomthombo omnye wamandla ombane okhoyo kwiinjini ezahlukeneyo, naxa umthombo wombane we-DC ungaphezulu kakhulu komthamo olinganisiweyo wemoto. zifakwe phakathi kwemoto kunye nomlawuli.Apha kulapho iindlela zempendulo zibalulekile;Ukugcina ulawulo oluchanekileyo lwemoto, umlawuli kufuneka ahlale eyazi indawo echanekileyo ye-stator ngokubhekiselele kwi-rotor.Nakuphi na ukungahambi kakuhle okanye ukutshintshwa kwesigaba ekulindelweyo kunye nokwenyani. izikhundla zinokubangela iimeko ezingalindelekanga kunye nokuthotywa kokusebenza.Zininzi iindlela zokufezekisa le ngxelo ngokubhekiselele kwi-comm.ukuveliswa kwe Iinjini zeBLDC, kodwa eyona nto ixhaphakileyo kukusebenzisa i-sensor effect yeholo, i-encoders, okanye i-rotary transformers.Ukongezelela, ezinye izicelo zixhomekeke kwiteknoloji ye-sensorless commutator ukuphumeza impendulo.