Kusukela emcabangweni wemoto, i-DC motor iyinjini ye-DC eguqula amandla kagesi e-DC abe amandla emishini, noma ijeneretha ye-DC eguqula amandla emishini abe amandla kagesi e-DC;umshini kagesi ojikelezayo okukhiphayo noma okokufaka kwawo okungamandla kagesi e-DC kubizwa ngokuthi i-DC motor, okuyimoto yamandla A eqaphela ukuguqulwa okuhlangene kwamandla kagesi e-DC namandla okusebenza.Uma isebenza njengemoto, iyinjini ye-DC, eguqula amandla kagesi abe amandla emishini;uma isebenza njengejeneretha, iyijeneretha ye-DC, eguqula amandla emishini abe amandla kagesi e-DC.

Kumamotho ajikelezayo, ama-harmonic currents noma ama-harmonic voltages azodala ukulahleka okwengeziwe kuma-windings e-stator, amasekhethi e-rotor nama-iron cores, okuholela ekwehleni kokusebenza kahle kokuguqulwa kwamandla kwenjini.I-Harmonic current ingakhuphula ukusetshenziswa kwethusi kwemoto, ngakho-ke ngaphansi komthwalo onzima we-harmonic, injini izokhiqiza ukushisa okweqile kwendawo, ikhulise ukudlidliza nomsindo, futhi ikhulise ukukhuphuka kwezinga lokushisa, okuholela ekugugeni okusheshayo kwesendlalelo sokufakwa kanye nokunciphisa impilo yemishini.Abanye abalandeli babuze, ama-AC motors azoba nama-harmonics, noma ngabe ama-DC motors nawo anale nkinga?

Ubukhulu nesiqondiso samanje esishintshayo sizoshintsha ngezikhathi ezithile, futhi inani elisebenzayo elimaphakathi emjikelezweni owodwa liyiziro, futhi i-waveform ngokuvamile i-sinusoidal, kuyilapho imanje eqondile ingashintshi ngezikhathi ezithile.I-alternating current iyisizinda sikazibuthe, esikhiqizwa ngomshini.Noma imuphi wamanje oshintshanayo kufanele ube nezakhiwo zika-electromagnetic, futhi kube nento eyinhloko kazibuthe.I-Direct current isekelwe kumakhemikhali, kungakhathaliseki ukuthi i-photovoltaic noma i-lead-acid, ikakhulukazi iguqula amandla amakhemikhali abe amandla kagesi.

Ukuguqulwa kwamandla ashintshayo abe awamanje aqondile kungokulungisa nokuhlunga ukuze kutholakale amandla aqondile ashayayo.I-current eqondile iguqulwa ibe yamanje eshintshanayo ngokusebenzisa i-oscillation kanye nokuguqulwa, futhi kutholakala amaza ahlukahlukene e-sine wave alternating.

Izizathu eziyinhloko zokukhiqiza ama-harmonics zihlanganisa ukuhlanekezelwa kwamandla ayisisekelo kanye nokukhiqizwa kwama-harmonics ngenxa ye-voltage ye-sinusoidal esetshenziswa emthwalweni ongaqondile.Imithwalo eyinhloko engaqondile i-UPS, ukushintshwa kwamandla kagesi, ukulungisa kabusha, isiguquli semvamisa, i-inverter, njll. Ama-harmonics we-DC motor aphuma ikakhulukazi ekunikezeni amandla.Isizathu sama-harmonics we-AC rectifier kanye nemishini yamandla ye-DC ukuthi okokusebenza kokulungisa kune-voltage ye-valve.Uma ingaphansi kwe-valve voltage, yamanje inguziro.

Ukuze kuhlinzekwe ukunikezwa kwamandla okuzinzile kwe-DC yalolu hlobo lwempahla kagesi, izakhi zokugcina amandla ezifana nama-filter capacitor nama-inductors okuhlunga zengezwa emshinini wokulungisa ukuze kukhuliswe i-valve voltage futhi kushukumise ukukhiqizwa kwama-harmonics.Ukuze kulawulwe i-voltage kanye namandla emishini kagesi ye-DC, i-thyristor isetshenziswa emshinini wokulungisa, okwenza ukungcoliswa kwe-harmonic kwamathuluzi anjalo kube kubi kakhulu, futhi ukuhleleka kwe-harmonic kuphansi kakhulu.

Ibhalwe nguJessica