Ingabe ufuna ukwazi okwengeziwe ngomsebenzi weI-Braking Resistorkusiguquli sefrikhwensi?
Uma kunjalo, sicela uhlole ulwazi olungezansi.
Kuhlelo oluguquguqukayo lwe-frequency drive, i-motor iyancipha futhi imiswe ngokunciphisa kancane kancane imvamisa. Ngesikhathi sokunciphisa imvamisa, ijubane lokuvumelanisa lemoto liyancipha, kodwa ngenxa ye-inertia yemishini, isivinini se-motor rotor sihlala singashintshiwe. Njengoba amandla esekethe ye-DC engakwazi ukubuyiselwa kugridi ngebhuloho lokulungisa kabusha, angathembela kuphela kusiguquli samafrikhwensi (isiguquli semvamisa sidonsa ingxenye yamandla nge-capacitor yaso). Nakuba ezinye izingxenye zisebenzisa amandla, i-capacitor isabhekana nokuqoqwa kwezindleko zesikhashana, idala "i-boost voltage" ekhulisa amandla kagesi e-DC. I-voltage ye-DC eyeqile ingabangela ukulimala ezingxenyeni ezihlukahlukene.
Ngakho-ke, lapho umthwalo usesimweni sokubhuleka i-generator, kufanele kuthathwe izinyathelo ezidingekayo ukuze kusingathwe la mandla okuvuselela kabusha. I-crane resistor kusekethe imvamisa idlala indima yesihlukanisi se-voltage kanye ne-shunt yamanje. Kumasiginali, womabili amasiginali we-AC ne-DC angadlula kuma-resistors.
Kunezindlela ezimbili zokubhekana namandla okuvuselela:
1. Ukusebenza kwebhuleki ukusetshenziswa kwamandla Ukubhuleka ukusetshenziswa kwamandla kuwukwengeza ingxenye ye-discharge resistors ohlangothini lwe-DC lwedrayivu yefrikhwensi eguquguqukayo ukuze kuhlakazwe amandla kagesi avuselelwe kusibamba samandla ukuze sibhuleki. Lena indlela yokubhekana namandla avuselelayo ngokuqondile, njengoba idla amandla avuselelayo futhi iwaguqule abe amandla okushisa ngokusebenzisa isekethe yokubhuleka edla amandla ezinikele. Ngakho-ke, kubizwa nangokuthi "i-resistance braking", equkethe iyunithi yokubhuleka kanye ne-ai-braking resistor.Iyunithi yamabhuleki Umsebenzi weyunithi yokubhuleka ukuvula isekethe yokusetshenziswa kwamandla lapho i-DC ye-voltage ye-Ud yeqa umkhawulo oshiwo, ukuze isekethe ye-DC ikhiphe amandla ngendlela yokushisa ngesinqanda ukubhuleka. I-resistor ene-resistor engaguquki ibizwa ngokuthi i-resistor engaguquki, futhi i-resistor enokumelana okuguquguqukayo ibizwa ngokuthi i-potentiometer noma i-variable resistor noma i-Rheostat.
2.Amayunithi amabhuleki angahlukaniswa ngezinhlobo ezakhelwe ngaphakathi nangaphandle. Eyangaphambili ifanele amadrayivu ajwayelekile ashintshashintshayo anamandla aphansi, kanti lena yakamuva ifanele amadrayivu aguquguqukayo anamandla amakhulu noma izidingo ezikhethekile zokubhuleka. Empeleni, awukho umehluko phakathi kwalokhu okubili. Zombili zisetshenziswa “njengama-switch” okuxhuma ama-braking resistors, futhi akhiwe ngama-transistors amandla, amasampula kagesi kanye namasekhethi okuqhathanisa namasekhethi okushayela.
I-Braking resistor isebenza njengendlela yokwenza amandla okuvuselela emoto ahlakazwe ngendlela yamandla okushisa, futhi ihlanganisa nemingcele emibili ebalulekile: inani lokumelana namandla amandla. Izinhlobo ezisetshenziswa kakhulu kwezobunjiniyela zifaka izinto eziphikisayo ze-ripple kanye ne-aluminium (Al) resistors yealloy. Eyangaphambili isebenzisa indawo evundlile emile ukuze ithuthukise ukunqanyulwa kokushisa, inciphise ukungena kwezimuncagazi, futhi isebenzisa i-inorganic resistant kanye ne-flame-retardant inorganic coating ukuvikela ngempumelelo intambo yokumelana ekugugeni nokwelula impilo yayo yesevisi. Ukumelana nesimo sezulu sakamuva kanye nokumelana nokudlidliza kungcono kunezinqamuleli eziyinhloko ze-ceramic, futhi isetshenziswa kakhulu ezindaweni zokulawula izimboni ezinonya ezinezidingo eziphakeme. Kulula ukuzifaka ngokuqinile futhi zingahlonyiswa ngamasinki okushisa engeziwe (ukunciphisa ukushisa okukhiqizwa phakathi nokusebenza kwedivayisi), ukunikeza ukubukeka okukhangayo.
