Abahlinzeki bemishini esekela i-frequency converter bakukhumbuza ukuthi kukhona iziguquli ze-universal frequency converter kanye neziguquli ze-vector frequency converters. Kodwa-ke, zombili izinhlobo zokuguqula imvamisa zingasetshenziswa, kepha zisahlukile. Abangane bangabheka ukuhlaziya okungezansi ukuze baqonde ukuthi kungani ama-inverter e-vector enenani eliphakeme kunama-inverter avamile.
Kunomehluko emibili phakathi kweziguquli ze-vector frequency kanye neziguquli zefrikhwensi ezijwayelekile. Inokulawula ngokunemba okuphezulu, futhi okwesibili, ine-torque enkulu ephuma ngesivinini esiphansi. Ingakwazi ukukhipha i-torque engu-150% -200% ye-torque elinganiselwe. Ukuhluka kweVector ukubola kwemoto yamanje ibe yamanje ye-D-axis kanye ne-O-axis yamanje. I-D-axis yamanje yi-excitation current, kanti i-eksisi yamanje yi-torque yamanje. Ngokuhlukanisa nokulawula u-d no-0, injini ingathola i-torque enkulu yokuqala. Kusetshenziswa eziteshini ezikusayithi zokuqalisa imithwalo esindayo. Isibonelo, amabhande amade anamandla amakhulu, amakheshi, njll. Kuleli qophelo, uma isiguquli esivamile sikhethiwe, uma umthwalo unzima kakhulu ngesikhathi sokuqalisa, i-torque yokukhipha ayanele, futhi injini ayikwazi ukuqala, izobika amaphutha afana nokuvinjelwa kwemoto noma i-converter frequency overcurrent.
Ukulawulwa kwamaphampu ajwayelekile kungenziwa ngohlobo lwepompo ye-blower noma uhlobo olujwayelekile. Asikho isidingo sokukhetha ama-vector, intengo iphezulu kakhulu. Mayelana nezilungiselelo zepharamitha, zonke ziyefana. Awukho umehluko.
Isibonelo, ukulawulwa kwe-vector kwaziwa nangokuthi ukulawula isivinini. ”Ngokwencazelo yezwi nezwi, umehluko othile ungabonakala
Imodi yokulawula ye-V/F: Ilingana nokugcina ukuncibilika konyawo kungashintshile ngenkathi ushayela, futhi ijubane liyashintsha nakanjani ngalesi sikhathi! Umgwaqo ezihamba kuwo izimoto awulingani, ngakho ukumelana komgwaqo nakho kuyashintsha. Uma ukhuphuka, ijubane lizohamba kancane, kodwa uma wehla, ijubane lizonyuka, akunjalo? Okwesiguquli sefrikhwensi, izilungiselelo zakho zokuvama zihambisana nenja edonsa kanzima lapho ushayela, futhi inja edonsa kanzima uma ilawula i-V/F iyalungiswa.
Indlela yokulawula iVector: Ingakwazi ukugcina isivinini semoto singaguquki futhi ithuthukise ukunemba kokulawula isivinini ngokusekelwe ezinguqukweni zezimo zomgwaqo, ukumelana, ukukhuphuka, ukwehla, nezinye izici. Ngakho-ke, kungakhathaliseki ukukhuphuka, ukwehla, noma izinguquko zokumelana nomgwaqo, ukuze ugcine isivinini esifanayo, ukuvulwa kwe-throttle kufanele kulungiswe ngaso sonke isikhathi. Kunjalo? Njengamanje ngithe: inani lokusetha isivinini lilingana nokuvuleka kwe-throttle, futhi inani lokusetha alishintshile. Inja ye-accelerator ishintsha kanjani futhi ijwayele ukumelana nomgwaqo nganoma yisiphi isikhathi?
Eqinisweni, uma indlela yokulawula ikhethwa njengokulawula kwe-vector, i-CPU engaphakathi kwe-inverter izovula lo msebenzi okhethekile! Ngokunikeza impendulo ngoshintsho lwamanje lwenjini nokusebenzisa ifomula yohlelo engashintshi ngaphakathi kwe-CPU, isilawuli sangaphakathi se-PID singanyusa noma sehlise ukuvuleka nokuvalwa kwamanye ama-accelerator (ukungena kwenjini) ngokusekelwe ekuvulekeni kwesisheshisi esikhona.
Ngakho-ke, ngaphezulu, idigri yokuvula i-accelerator ayishintshi ngokulawula kwe-V/F nokulawula i-vector, kodwa empeleni, idigri yokuvula i-accelerator ayishintshi ngokulawula kwe-V/F, futhi idigri yangempela yokuvula i-accelerator ishintsha ngokulawulwa kwe-vector (ilungiswa phezulu naphansi ngokwezinga lokuqala lokuvula i-accelerator). Lena ukuphela kwendlela yokugcina isivinini semoto singashintshi ngangokunokwenzeka.