Ukuhlaziywa kwethonya lama-harmonics emandleni kagesi

Imithombo yama-harmonics

Kunezizathu eziningi zokukhiqizwa kwama-harmonics, ngakho-ke kunemithombo eminingi, futhi izinhlobo zemishini ehilelekile nazo zibonisa izici ezithile ezahlukahlukene. Phakathi kwazo, imithombo eyinhloko yama-harmonics ifaka phakathi amaqembu e-transformer kugridi yamandla, izitofu zikagesi zezimboni, amadivayisi kagesi amakhulu esigaba esisodwa, kanye nemishini yokulungisa kabusha kanye nemishini yokulawula i-AC voltage.

Ukuhlaziywa okuyingozi kwama-harmonics

Ukuba khona kwama-harmonics ohlelweni lwamandla kulingana nomthombo wokungcola kohlelo lwamandla, futhi into yokungcola ikakhulukazi yindawo kagesi ohlelweni lwamandla. Njengengxenye ebalulekile yemvelo yohlelo lwamandla, indawo kagesi izobonisa izingozi ezahlukene ngaphansi kwethonya lamazinga ahlukene ama-harmonics. Kodwa-ke, lokhu kulimaza okuncane kuzophinde kunciphise ukusebenza kahle kwemishini kagesi, futhi imiphumela emibi kakhulu ingaholela ekushushisweni kokusebenza okuzinzile nokuphephile kohlelo lwamandla kanye nomonakalo wemishini kagesi. Ukulimala kokukhiqizwa kwama-harmonics kufaka phakathi izici ezilandelayo:

(1) Imishini kagesi ishisa ngendlela engavamile ngenxa yesenzo se-harmonics, futhi ukulahlekelwa okwengeziwe kukhulu kakhulu. Nakuba kukhona igebe elikhulu phakathi kwenani lamanje we-harmonic kanye nogesi oyisisekelo, ukuba khona kwama-harmonics kuzokwandisa umphumela wesikhumba wedivayisi, futhi ukumelana okusebenzayo kuzokwanda enkambisweni yokuzwa umphumela wesikhumba. Kweminye imishini ekhethekile, ukulahlekelwa okukhulu kwamanje we-eddy kanye nokulahleka kwe-hysteresis nakho kuzokwenzeka, njengemishini kagesi enezinsimbi zensimbi. Lapho i-waveform iphambukile ngezinga elithile, igagasi elikhulu le-amplitude peak lizokwandisa ukuqina kokukhishwa okuyingxenye. Ngaphansi kwezimo ezinjalo zokusetshenziswa okuphezulu, kulula ukunciphisa impilo yesevisi yemishini kagesi.

(2) Injini ingabangela ukudlidliza komshini. Ngaphansi kwethonya lemisinga ye-harmonic, insimu kazibuthe ejikelezayo yenjini izokhiqiza i-torque eshayayo engabangela ukuthi imoto idlidlize. Ngaphansi kwethonya lemvamisa yemvelo yenjini, lolu hlobo lokudlidliza lungabangela kalula ukudlidliza komshini okuyingozi kakhulu, ngaleyo ndlela kubeke engcupheni ikhwalithi yemishini kagesi futhi kusongela ngisho nokuphila kwabantu.

(3) Ukuphazamiseka kwemishini yamakhompyutha kanye namanye amadivayisi okulawula okuzenzakalelayo. Ngaphansi kwezimo ezivamile, imishini yokulawula okuzenzakalelayo kanye nezinye izinhlelo zokulawula okuzenzakalelayo ezihlobene zakhiwe ngokusekelwe kumandla kagesi ajwayelekile kanye ne-voltage elayishiwe. Lapho kukhiqizwa ama-harmonics, uhlelo lokulawula okuzenzakalelayo alunaki lesi sici esithonyayo, okwenza kube lula Ukuphazamiseka kuthinta ukusebenza komsebenzi walo wokulawula. Lapho izinga lokungcola kwama-harmonics likhulu, kungenzeka futhi ukushintsha izinqubo zokusebenza kohlelo lokulawula okuzenzakalelayo, okubangela ukuthi lukhiqize isiqondiso esingalungile. Lolu hlobo lwethonya luzothinta kakhulu ukukhiqizwa nokusebenza kwangempela, futhi luze lubangele nezingozi zokuphepha ezingalungiseki.