Frequency Converter for injini yombane: scheme

Kweli nqaku, uza kufumana ntoni rhoqo Converter enjinini, cinga scheme, imigaqo yakhe zokusebenza, kwakunye ufunde malunga izicwangciso ze Designs Industrial. Ugxininiso luya kuba phezu imveliso ye inverter ngesandla. Kakade ke, kuba oku kufuneka ukuba ubuncinane uluvo jikelele ingcingo buciko. Kuyimfuneko ukuba siqale, iinjongo apho kusetyenziswa converters rhoqo.

Xa kukho imfuneko drive

converters frequency Modern - i izixhobo ophezulu zobugcisa ezinama izinto ezisekelwe semiconductors. Ukongeza, kukho inkqubo yolawulo yekhompyutha esekelwe phezu microcontroller. Ngoncedo lwawo, wenza ulawulo kuzo zonke iinkalo iparameters motor. Ingakumbi isantya ukujikeleza zingatshintshwa ngokusebenzisa rhoqo Converter ye-injini yombane. Kukho ingcamango bathenge inverter enjinini. Ixabiso kwisixhobo enjalo kwiimowutha ka-0.75 kW iya kuba malunga 5-7 amawaka. Hlikihla.

Kubalulekile ukuphawula ukuba uyakwazi ukutshintsha umhlaba ubucotha ukujikele- usebenzisa gearbox, eyakhelwe ngokwesiseko variator okanye nezixhobo uhlobo. Kodwa izakhiwo ezinjalo zinkulu kakhulu, sebenzisa kubo akusoloko kusenzeka. Yonke enye into, iindlela ezinjalo kufuneka ixesha kukhonza, nokuthembeka kwabo liphantsi kakhulu. Nokusetyenziswa rhoqo converter zokunciphisa electric drive iindleko yesondlo kwakunye ukwandisa izakhono zalo.

Eyona engundoqo amacandelo njalo yokuguqula

Nayiphi Converter frequency lineemodyuli ezine eziphambili:

1. unit rectifier.
2. DC isixhobo yokuhluza ombane.
3. ibandla Inverter.
4. inkqubo yolawulo encinane.

bonke zihlobene, kwaye iyunithi yolawulo ulawula imveliso ibakala umsebenzi - le inverter. Oku kwenziwa ngoncedo utshintsho kwi kwimveliso AC iimpawu.

On oko kuya kuchazwa ngokweenkcukacha ngezantsi, ubonisa scheme. Frequency Converter for injini yombane uye iimpawu ezimbalwa kakhulu. Kufuneka kuqatshelwe ukuba izixhobo iquka amanqanaba eziliqela wokhuseleko, nto leyo nayo lilawulwa iyunithi microcontroller. Ingakumbi, le ulawulo yenziweyo lobushushu element amandla semiconductor. Ngaphezu koko, kukho umsebenzi zokuzikhusela iziphaluka ezimfutshane kunye overcurrents. Amaza Converter kufuneka adityaniswe kwi-mbane ngokusebenzisa izixhobo zokhuseleko. Imfuneko yokuba lwekontraka ngemagnethi tsakisi ngaphandle.

Rectifier inverter

Lo mnqongo yokuqala, ekuthe ngoku yhuu. Ngoncedo lwe eqondisa wavelisa AC - ibe ukuguquka DC. Oku kungenxa yokusetyenziswa izinto ezifana ilight semiconductor. Kodwa ngoku kufanelekile ukuba sikhankanye iimpawu ezincinane. Uyazi ukuba uninzi amandla yeemowutha olungenangqamaniso inikwa ngumntu kwisigaba emithathu-AC ngamandla. Kodwa asingabo bonke enjalo. Kakade ke, kumashishini amakhulu ngayo, kodwa kubomi bemihla ngemihla ukuba kunqabile kusetyenziswa ekubeni kulula ukubamba kwisigaba esinye. Kwaye kuthathelwe ingqalelo izinto zombane lula.

A frequency Converter nga sinokubanamandla yi uthungelwano ontlantlu-ntathu, kunye-wesigaba esinye. Yintoni umahluko? Kwaye ezingabalulekanga, iintlobo ezahlukeneyo rectifiers asetyenziswe ekwakheni. Xa sithetha ngalo inverter ezi-ngenxa injini yombane, kuyimfuneko ukusebenzisa inkqubo kwi ilight ezine semiconductor kwi uhlobo kwebhulorho. Kodwa ukuba ufuna amandla network ontlantlu-ntathu, kufuneka ukhethe icebo elahlukileyo, eliquka ilight semiconductor ezintandathu. iinkalo ezimbini engalweni nganye, isiphumo ufumana ukulungisa AC. Xa isiphumo iya kuba 'dibanisa' yaye 'thabatha'.

yokuhluza DC

Xa imveliso ye rectifier unayo ombane rhoqo, kodwa abe yama- elikhulu, nangoku imigqomo isakhi bume. Njengokugudisa zonke ezi "izitenxo" of lwangoku, kuya kufuneka wenze isicelo izinto ezimbini ubuncinane - inductors kunye capacitor electrolytic. Kodwa kuqala izinto ezixabisa ngabo iinkcukacha ezingaphezulu.

Le inductor unalo inani elikhulu amagophe, iye ethile reactance, evumela encinane ngokulalisa Ripples therethrough elibaleka yangoku. Into yesibini - a capacitor enxulumene phakathi izibonda ezimbini. Kuye iipropati ngokwenene umdla. Xa ukuhamba ngoku ngqo ukuba umthetho Kirchhoff kufuneka kufakwe yi eliweni, oko kukuthi phakathi dibanisa kwaye thabatha, njengoko kunjalo belungekho. Ke uyayiphelisa indawo yayo nokuxuba - umqhubi pigtail ngaphandle uxhathiso. Njengoko kukhankanyiwe ngasentla, ayajika abe ngoku rhoqo, kodwa inxalenye encinane AC. Kwaye ivalekile, eshiya nje shwaka.

Imodyuli inverter

An unit inverter, ukuba ngqo, eyona nto ibalulekileyo kubume lonke. Ngayo, kwaye wenza utshintsho yemveliso efumaneka yangoku iparameters. Ingakumbi isitishi, ombane njalo njalo. G. Le inverter iqulathe transistors ezintandathu kolawulo. Kuba kwisigaba ngasinye, izinto ezimbini semiconductor. Kubalulekile ukuphawula ukuba indibano yangoku IGBT-transistors ezisetyenziswa inverter bakala. Nangona ekhaya, nangona rhoqo Converter ka Delta, uhlahlo lwabiwo-mali abaninzi nefikelelekayo namhlanje, iquka amacandelo efanayo. ezingenzeka kuphela.

Baye ezintathu, inani elifanayo iziphumo, kwakunye njengamanqaku Uyamano isilawuli ezintandathu. Kufuneka kuqatshelwe ukuba imveliso ayingaphandle inverter kufuneka kwenziwa ukhetho kwebandla amandla. Ngoko ke, kufuneka ngoko nangoko ukugqiba into uhlobo ngeemoto idityaniswe ukuya kumaza Converter.

lawula isilawuli

Nge self-iimveliso akunakwenzeka ukuba baphumelele ukuphumeza iinketho efanayo ukuba ziyafumaneka kuyilo industrial. Isizathu soku ayikho kwinto yokuba iindibano ezi transistors amandla eyenziweyo olungasebenziyo. Inyaniso kukuba ukwenza iyunithi yolawulo zicwadi kunzima ekhaya. Kakade ke, akukho malunga izinto ngelotha, kodwa iyunithi microcontroller iinkqubo. Le ndlela ilula - ngayo ukwenza iyunithi yolawulo, esebenzisa umntu uyakwazi ukunyenyisa isantya ujikelezo, ukuphunyezwa umva, ukukhuselwa uphuphumalo kunye nobushushu.

Ukutshintsha isantya ukujikeleza kuyimfuneko ukusebenzisa ukumelana variable oludityaniswe kwigalelo lezibuko microcontroller. Icacisa isixhobo enikezela nj umqondiso. Last hlaziya utshintsho kwinqanaba ombane kuthelekiswa reference, nto leyo 5 V. Le nkqubo yolawulo isebenza ngokutsho algorithm ethile, ebhalwe ekuqaleni kwenkqubo. Ngokungqongqo kwaso kukho ukusebenza kwenkqubo isilawuli. zithandwa kakhulu ezi iiyunithi ulawulo Siemens. Le inverter yalo mlimi sele ukuthembeka phezulu, unokusetyenziswa naluphi na uhlobo actuator.

Indlela ukuqwalasela frequency yokuguqula

Namhlanje, kukho ezininzi i abenzi device. Kodwa ukwanelisa algorithm kwaphela phantse twatse. Kakade ke, ubambe uqwalaselo inverter akayi kusebenza ngaphandle ethile ulwazi. Kufuneka ube izinto ezimbini - amava ummiselo kunye nokusebenza manual. Kule yokugqibela kukho isicelo, echaza yonke imisebenzi leyo inokwenziwa. Ngokuqhelekileyo, izindlu yobuninzi converter uye amaqhosha ezimbalwa. Ubuncinane abane kubo kufuneka babe khona. Ezimbini elisetyenziswa ukuswitsha phakathi imisebenzi ngoncedo abanye benza ukhetho yemida okanye ukurhoxiswa idatha efakiwe. Ukufaka lwenkqubo imo kufuneka cinezela iqhosha ethile.

Ibe nganye, le inverter ngegalelo algorithm wakho imo kweenkqubo. Ngoko ke, ngaphandle yesikhokelo andikwazi ukwenza. Kufuneka kuqatshelwe ukuba imisebenzi zahlulwe subgroups eziliqela. Kwaye ulahlekile kuzo ayikho nzima. Zama ukutshintsha ezo izicwangciso ezingabambi kumenzi. Ezi izicwangciso kufuneka itshintshwe kuphela kwiimeko ezizodwa. Xa ukhetha umsebenzi lwenkqubo, uya kubona kwidispleyi sokubekwa yayo oluza. Njengoko ukugaywa amava iswitch frequency converter uya kubonakala kulula kakhulu.

iziphumo

Xa usebenza, ukusisevisa, okanye eyimveliso njalo converter onke amanyathelo. Khumbula ukuba kuyilo isixhobo, kukho capacitors electrolytic eziqagcinayo ziindleko naxa olusuka AC ngamandla. Ngoko ke, ngaphambi kokuba disassembling, kuyimfuneko ukuba alinde wokuqhuba. Nceda uqaphele ukuba kukho izinto oyikayo wombane ezingashukumiyo kulwakhiwo converters rhoqo. Ingakumbi oku kusebenza kwinkqubo yolawulo isilawuli. Ngoko ke, ukuba enze ngelotha kufuneka abe yonke imigqalisela.