Ibhodi Lokulawula Izimoto Zezimboni
Imininingwane
Okwesibili, uhlelo lokulawula imoto lusetshenziselwa ukulawula imoto, kodwa hlobo luni lwemoto?Ingabe injini ye-DC noma i-AC motor?Kuthiwani ngezinga lamandla?Konke lokhu kudinga ukuhlaziywa lapho kunqunywa uhlobo lwemoto!Bese, vele ubheke izinhlobo zamamotho:
Ngokombono wohlobo lokuphakelwa kwamandla, angahlukaniswa cishe abe yizigaba ezingenhla, okuholela ekukhiqizeni izikimu zokulawula izimoto ezihlukene;Ukuhlukaniswa iziqephu okunye kuzokhiqiza izinhlobo ezahlukene.
Isibonelo, ama-DC motors nawo angahlukaniswa abe yizinjini zesigaba esisodwa kanye nama-motor ezigaba ezintathu;futhi ngenxa yezinhlelo ezihlukene zokulawula ezihambisanayo zalezi zigaba, zingahlukaniswa nge-algorithm elandelayo.Bheka!
Khona-ke, ingabuye ihlukaniswe ngokwamandla: Ukuchazwa kweMoto ngokuya ngamakilasi ahlukene wamandla!Ngakho-ke, ikhambi lokulawulwa kwezimoto kufanele lihlukaniswe ngokuya ngokusetshenziswa kanye nohlobo lwemoto!Akukwazi ukwenziwa okuvamile!Amamotho e-Servo, ama-torque motors, ama-switched reluctance motors, kanye namamotho asebenza ngozibuthe ahambisanayo wonke ahlukaniswa ngokokusetshenziswa kwawo.Ekulawulweni kwenjini, kukhona futhi ukuhlukaniswa kwesoftware nehardware.Nakhu ukubheka izinga lokulawula isofthiwe:Ama-algorithms okulawula izinjini avame ukusetshenziswa kakhulu, okungukuthi, lawo asetshenziswa ngomqondo odumile yilawa:Injini ye-DC: Kuya ngokuthi iyisigaba sesithathu noma isigaba esisodwa!Isigaba esisodwa! : Kulula ukulawula, okuqondile kakhulu ukulawulwa kwe-voltage eqondile, yiqiniso, ukulawulwa kwejubane nakho kungenzeka;Futhi izigaba ezintathu: izindlela zokulawula ezihlukene zingasetshenziswa, njengokulawula i-voltage eqondile, ukulawula i-pwm noma indlela yokulawula izinyathelo eziyisithupha, engaqedwa ngamakhompiyutha amaningi e-single-chip, ukulawulwa kwe-trapezoidal wave noma i-sine wave control, okulungile i-chip ibeka phambili ezinye izidingo, njengokuthi umthamo wanele, yebo, ingaba nokulawula kwe-FOC, njll.;
Khona-ke ama-AC motors nawo angahlukaniswa ngezigaba.Izinga le-algorithm lisebenzisa ukulawulwa kwe-pid yakudala, vele, kukhona nokulawulwa kwenethiwekhi ye-neural okuthuthukisiwe, ukulawula okungaqondakali, ukulawula okuguquguqukayo, njll.;Bese ubuyela embuzweni, iyiphi i-chip engcono?Ngokokuqukethwe ngenhla, ingabonakala. ukuthi kunezinhlobo eziningi zamamotho, futhi kufanele kube nama-chips ahlukene ukuze kuhlangatshezwane nezidingo ngaphansi kwezinhlobo ezahlukene nezindlela ezihlukene zokusebenzisa amandla! Ukuze usebenzise isingathekiso, ukulawulwa kwezinyathelo eziyisithupha okulula kungenziwa nge-microcomputer eyodwa eyi-51 evamile, kodwa lapho kufanele kusetshenziswe imikhiqizo yethu?Uma kungumkhiqizo wabathengi, kwanele ukuthi ungasebenza, khona-ke i-51 ingahlangabezana nezidingo, futhi uma isetshenziswa embonini, kwanele ukushintshela ku-ARM, futhi uma isetshenziswa emotweni, khona-ke. lezi zinhlobo ezimbili azamukelekile.Okudingeka kusetshenziswe i-MCU engakwazi ukuhlangabezana nezinga lokucaciswa kwemoto!Ngakho-ke, isimiso sokukhetha i-chip yokulawula imoto ukuthi njengoba kuncike ohlotsheni lwemoto, kuncike futhi ekusetshenzisweni kwayo!Yiqiniso, kukhona nokunye okujwayelekile.Isibonelo, ngenxa yokuthi ukulawulwa kwezimoto, isixazululo sangaphambilini esivamile ngokuvamile sidinga ukuqoqa ulwazi lwamanje, ngakho-ke i-amplifier ingase isetshenziselwe ukuguqula yamanje futhi iyithumele ku-MCU ukuze kucutshungulwe isignali;Yebo, ngokuthuthukiswa kwamasekhethi ahlanganisiwe, Ingxenye yomshayeli eyasetshenziswa esikhathini esidlule manje ingahlanganiswa ngokuqondile ku-MCU ngabanye abakhiqizi, konga indawo yesakhiwo!Mayelana nesignali yokulawula, ukulawulwa kwamandla kagesi okuqondile kudinga kuphela ukuthumela i-voltage, i-pwm control idinga ukuthi i-mcu iqoqwe, i-can/LIN nezinye izilawuli ezisetshenziswa ezimotweni zidinga ama-chips azinikele ukuze zidluliselwe futhi zithunyelwe ku-mcu, njll.;
Lapha, i-chip eyodwa ayinconywa, kodwa abakhiqizi abaningi bokuqala emhlabeni basebenzisa izixazululo ezahlukene zezimoto.Ukuze uthole imininingwane, sicela uvakashele iwebhusayithi yokuqala!Abakhiqizi boqobo abakhulu ngokuqhathaniswa: i-infineon, i-ST, i-microchip, i-freescale, i-NXP, i-ti, i-onsemiconductor, njll., bethule izixazululo ezihlukene zokulawula izimoto.