Ukusuka kwikhosi yefiziksi siyazi ukuba i-motor yombane inokusebenza njengejenereyitha; esi siphumo sisetyenziselwa ukubuyisela umbane. Ukuba sinento enkulu eqhutywa yimoto yombane, ke xa ibraking, amandla omatshini anokuguqulwa abuyele kumandla ombane kwaye abuyiselwe kwisistim. Le ndlela isetyenziswa ngokusebenzayo kwishishini kunye nezothutho: iyanciphisa ukusetyenziswa kwamandla, kodwa ayihambelani kakuhle nokunikezelwa kwamandla angenakuphazamiseka. Kwinkqubo yokuchacha kufuneka zisetyenziswe ngononophelo olukhulu.
Ukuhlaziywa kuhlangana nini ne-UPS?
Ingxaki ivela ngeentlobo ezithile zemithwalo yemizi-mveliso, amaxesha amaninzi ezi luhlobo lwezixhobo zoomatshini okanye ezinye izixhobo eziqhutywa ngoomatshini. Zilawulwa yinto ebizwa ngokuba yi-frequency converters okanye ii-servos, ezizii-frequency converters ezinempendulo. Xa i-injini yofakelo olunjalo ingasayi kunikwa amandla, inokutshintshela kwimodi ye-generator, iqalise ukuvelisa umbane ngexesha lokuqhawula kunye nokubonelela kwinethiwekhi yokufaka.
Ufakelo lwale mihla lwemizi-mveliso luhlala lukhuselwe ekuphelisweni kombane kusetyenziswa i-UPS. Ngokomzekelo, sinokuqwalasela oomatshini be-CNC abasetyenziselwa ukulungiswa okuphezulu kwezinto zokusebenza ezibizayo. Umjikelo wethekhinoloji kufuneka ugqitywe ngokuchanekileyo, kwaye ukuba inkqubo iphazamisekile, akunakwenzeka ukuyibuyisela kwaye i-workpiece iya kufuneka ilahlwe. Inokubiza ngaphezu kwesigidi seeruble, ukuba sithetha ngobunjineli bomatshini, ukwakhiwa kweenqanawa kunye nokuveliswa kweenqwelomoya, kunye nobugcisa bezempi kunye nommandla.
Kutheni ii-UPS zingahambelani nokuchacha?
I-converter frequency idlulisa umbane owenziweyo kwaye iwukhuphe kwigalelo. Kule meko, inkqubo yolawulo lonikezelo lwamandla kufuneka iqale ithathele ithuba lokubuyisela amandla kumnatha ukuze kusetyenziswe inzuzo. Inkqubo enjalo ibalwa ngokucophelela kwaye ixabisa ngakumbi, kodwa ikuvumela ukuba unciphise iindleko zamandla kwaye ugweme izingozi. Ukuba ufakelo oluninzi olukhuselweyo lwe-UPS lusebenza ngaxeshanye, amandla aveliswa ngomnye wabo angasetyenziswa ngabamelwane. Ukuba kukho iingxaki ngolawulo lomthwalo kunye nokubala, okanye iyunithi enye kuphela esebenzayo kwinkqubo, ukuchacha kuya kuchaphazela i-UPS. Izixhobo ezakhiwe ngokweskimu se-classical aziyilwanga nje oku: amandla adlula kwi-inverter, eqala ukudlala indima yohlobo lwe-booster, olukhokelela ekunyuseni kombane kwibhasi ye-DC. Phantse akukho UPS yanamhlanje ekwaziyo ukumelana nale ngxaki ngokupheleleyo; emva kokuba ukhuselo lubasiwe, luya kutshintshela kwimowudi yokudlula.
Kuphi ukuphuma?
Ukuthintela umguquli we-frequency ekuqhumeni, apho amandla aveliswa ngokufakela ngexesha lokubuyisela angena kwinkqubo, iimodyuli ezikhethekileyo ezine-resistors braking zifakwe. Zifakwe kwisiphaluka ngexesha elifanelekileyo, zichitha amandla amaninzi ngendlela yokushisa kwaye, ngaphezu kwezixhobo zoshishino, zikhusela ne-UPS. Ingxaki, siphinda, ixazululwe sele ikwinqanaba loyilo lwe-teknoloji eyinkimbinkimbi: umthwalo kunye nenkqubo yokulawula amandla kufuneka ilungiswe ngokuchanekileyo. Unokudibanisa ii-UPS ezininzi ngokuhambelana nomthwalo omncinci - kule meko, ukuchacha "kutyunyuziwe" ngamandla kwaye akusayi kuphinda kukwazi ukukhubaza inkqubo yonikezelo lwamandla olungaphazamisekiyo.
umthombo: www.habr.com