Aikace-aikacen KD600 na dindindin maganadisu mai inverter a cikin fan

Dubawa

A cikin 'yan shekarun nan, tattalin arzikin kasar Sin ya ci gaba da samun bunkasuwa cikin sauri, matsalar makamashi ta kara zama babbar ginshikin ci gaban masana'antu, da saurin hauhawar farashin makamashi, gasa mai tsanani a kasuwannin cikin gida, aikin kiyaye makamashi ya haifar da ci gaba. ya zama babbar matsalar da ke fuskantar ci gaban masana'antu da dama, musamman ma wasu makamashin da ake amfani da su ya kasance manya-manyan masana'antu irin su petroleu-m, chemical, pharmaceutical, karafa, masana'antu, kare muhalli, gundumomi da sauran masana'antu. Bisa bayanan da aka fitar, jimillar karfin manyan injinan lantarki da masu karamin karfi a kasar Sin ya zarce megawatt 35000, yawancinsu nauyin fanfo ne, kuma galibinsu suna aiki ne ta hanyar amfani da makamashi mai yawa da kuma karancin inganci.

Babban fan, tsarin famfo mafi yawan bawul don daidaita kwararar ruwa ko matsa lamba, baffle wannan ka'ida shine ƙara asarar hanyar sadarwar bututu, cinye makamashi mai yawa akan farashi, saboda haka, babu makawa yana haifar da asarar makamashin lantarki. Kuma saboda zane-zane, an tsara tsarin bisa ga matsakaicin nauyin nauyi, a cikin ainihin aiki, mafi yawan lokutan tsarin ba zai yiwu a yi aiki a cikin cikakken nauyin nauyin ba, akwai babban ragi, don haka akwai babban ƙarfin ceton makamashi. .

Yin amfani da na'urar sarrafa saurin mitar mitar KD600, ta hanyar canza saurin fan, don canza ƙarar iska mai fan don saduwa da buƙatun tsarin samarwa, kuma amfani da makamashin aiki shine mafi ceto, mafi girman fa'ida. Sabili da haka, ƙa'idar saurin mitar mai canzawa shine ingantaccen tsarin tsarin saurin gudu, wanda zai iya gane ka'idojin saurin fanko, kuma zai iya samar da tsarin kula da rufaffiyar madauki don cimma matsa lamba akai-akai ko sarrafa kwararar ruwa akai-akai.

Maimaita juyawasion gudun ƙa'idar ceton makamashi

Dangane da ka'idar injiniyoyin ruwa, alaƙar da ke tsakanin ikon shaft P da ƙarar iska Q da iska mai ƙarfi H na fan ɗin da ke motsawa ta injin induction shine kamar haka:

"Q*H Lokacin da saurin motar ya canza daga n1 zuwa n2, dangantakar dake tsakanin Q, H, P da gudun shine kamar haka:

Ƙa'idar ceton kuzari ta mitar juyawa

Ana iya ganin cewa ƙarar iska Q yana daidai da gudun n na motar, kuma ƙarfin shaft ɗin da ake buƙata P yana daidai da cube na gudun. Don haka, lokacin da ake buƙatar kashi 80% na ƙimar iskar da ake buƙata, ta hanyar daidaita saurin injin zuwa 80% na saurin da aka ƙididdigewa, wato daidaita mitar zuwa 40.00Hz, ƙarfin da ake buƙata zai kasance kawai 51.2% na asali.

Kamar yadda aka nuna a cikin Hoto (1), tasirin ceton makamashi bayan ɗaukar ƙa'idodin saurin mitar mai canzawa ana yin nazari daga yanayin aiki na fan.

Ƙa'idar ceton kuzari ta mitar juyawa

Lokacin da adadin iska da ake buƙata ya ragu daga Q1 zuwa Q2, idan an karɓi hanyar daidaitawa damper, juriya na cibiyar sadarwa na bututu zai ƙaru, ƙayyadaddun ƙayyadaddun hanyoyin sadarwar bututun zai motsa sama, yanayin yanayin aiki na tsarin zai canza daga aya. A zuwa sabon yanayin aiki B, kuma P2 da ake buƙata ikon shaft yana da alaƙa zuwa yankin H2 × Q2. Idan an karɓi yanayin sarrafa saurin, saurin fan yana faɗuwa daga n1 zuwa n2, halayen cibiyar sadarwa ba sa canzawa, amma yanayin yanayin fan zai motsa ƙasa, don haka yanayin yanayin aikinsa yana motsawa daga A zuwa C. ikon shaft da ake buƙata P3 yayi daidai da yankin HB ×Q2. A ka'ida, ikon shaft Delt(P) da aka ajiye yayi daidai da yankin (H2-HB) × (CB).
Yin la'akari da raguwar inganci bayan raguwa da ƙarin asarar na'urar sarrafa saurin gudu, ta hanyar ƙididdiga masu amfani, magoya baya na iya adana makamashi ta hanyar sarrafa saurin sarrafawa har zuwa 20% ~ 50%.

Fa'idodin sarrafa saurin mitoci masu canzawa

An inganta yanayin wutar lantarki na gefen cibiyar sadarwa: lokacin da ainihin motar ke motsawa kai tsaye ta hanyar mitar wutar lantarki, ƙarfin wutar lantarki yana kusan 0.85 a cikakken kaya, kuma ƙarfin wutar lantarki na ac-tual ya fi ƙasa da 0.8. Bayan yin amfani da tsarin daidaita saurin mitar conve-rsion, za a iya ƙara yawan ƙarfin wutar lantarki zuwa fiye da 0.9, kuma za a iya rage ƙarfin ƙarfin ba tare da na'urar diyya ta wutar lantarki ba, wanda zai iya biyan bukatun grid ɗin wutar lantarki. da kuma kara adana farashin aiki na kayan aiki na sama.
Ayyukan kayan aiki da farashin kulawa sun ragu: Bayan yin amfani da daidaitawar haɗin gwiwar mita, saboda daidaitawar saurin mota don cimma nasarar ceton makamashi, lokacin da nauyin nauyi ya yi ƙasa, an rage saurin motar, babban kayan aiki da kayan aiki masu dacewa. kamar bearings sa kasa da baya, za a iya tsawaita sake zagayowar ci gaba, an tsawaita rayuwar kayan aiki; Kuma bayan canjin canji, buɗewar damper zai iya kaiwa 100%, kuma aikin ba a ƙarƙashin matsin lamba ba, wanda zai iya rage yawan kulawar damper. A cikin aikin mai sauya mitar, kawai buƙatar ƙura akai-akai na mai sauya mitar, ba tare da tsayawa ba, don tabbatar da ci gaba da samarwa. Tare da bukatun samarwa, daidaita saurin fan, sa'an nan kuma daidaita girman iska na fan, wanda ba kawai ya dace da bukatun tsarin samarwa ba, amma kuma yana rage girman aikin. Bayan ɗaukar fasahar jujjuya mitar don ƙa'idar saurin, lalacewa na inji yana raguwa, aikin kulawa yana raguwa, kuma ana rage farashin kulawa.
Bayan da aka yi amfani da na'urar daidaita saurin jujjuyawar mitar, motar za ta iya zama mai laushi mai farawa, kuma na yanzu baya wuce sau 1.2 na halin yanzu na injin lokacin farawa, ba tare da wani tasiri akan grid ɗin wutar lantarki ba, da rayuwar sabis na motar. an tsawaita. A cikin duka kewayon aiki, motar zata iya tabbatar da aiki mai santsi, rage asara, da hawan zafin jiki na yau da kullun. Hayaniyar da fara motsin fan ɗin ƙanƙanta ne sosai lokacin farawa, ba tare da wani ƙaranci da hayaniya ba.
Idan aka kwatanta da ainihin tsohon tsarin, inverter yana da ayyuka masu yawa na kariya irin su overcurrent, short circuit, overvoltage, undervoltage, rashin lokaci, yawan zafin jiki, da dai sauransu, don mafi kyawun kare motar.
Sauƙaƙan aiki da aiki mai dacewa. Ana iya saita ma'auni kamar ƙarar iska ko matsa lamba ta kwamfuta daga nesa don cimma ƙa'ida ta hankali.
Ƙarfin daidaitawa ga sauye-sauyen wutar lantarki na grid yana da ƙarfi, ƙarfin aiki na aiki yana da faɗi, kuma tsarin na iya aiki akai-akai lokacin da ƙarfin wutar lantarki ya canza tsakanin -15% da + 10%.