Saitin Generator Diesel ya dace da UPS

Wannan labarin yana nazari da kuma bayyana tasirin abubuwan shigar da wutar lantarki ta UPS da matatar shigarwa akan wutar lantarki domin a fayyace musabbabin matsalar, sannan a nemo mafita.

1. Haɗin kai tsakanin saitin janareta na diesel da UPS.

Masu kera da masu amfani da tsarin samar da wutar lantarki mara katsewa sun dade suna lura da matsalolin daidaitawa tsakanin na'urorin janareta da UPS, musamman ma'anar jituwa na yanzu da na'urori masu gyara ke haifar da su akan tsarin samar da wutar lantarki kamar masu sarrafa wutar lantarki na na'urorin janareta da na'urorin daidaitawa na UPS.Illar hakan a bayyane take.Don haka, injiniyoyin tsarin UPS sun tsara matattarar shigarwar kuma sun yi amfani da ita zuwa UPS, suna samun nasarar sarrafa abubuwan jituwa na yanzu a cikin aikace-aikacen UPS.Wadannan matattarar suna taka muhimmiyar rawa wajen dacewa da UPS da saitin janareta.

Kusan duk matatun shigar da bayanai suna amfani da capacitors da inductor don ɗaukar jitu mafi ɓarna a halin yanzu a shigarwar UPS.Zane na matatar shigarwa yana la'akari da adadin matsakaicin yuwuwar jimillar murdiya mai jituwa da ke cikin kewayen UPS da kuma ƙarƙashin cikakken kaya.Wani fa'idar mafi yawan masu tacewa shine haɓaka ƙarfin shigarwar UPS da aka ɗora.Duk da haka, wani sakamakon aikace-aikacen tace shigarwar shine don rage girman ingancin UPS.Yawancin masu tacewa suna cinye kusan 1% na ikon UPS.Zane na matatar shigarwa koyaushe yana neman daidaito tsakanin abubuwa masu kyau da mara kyau.

Domin inganta ingantaccen tsarin UPS kamar yadda zai yiwu, injiniyoyin UPS kwanan nan sun yi gyare-gyare a cikin ikon amfani da matatar shigarwa.Inganta ingancin tacewa ya dogara ne akan aikace-aikacen fasahar IGBT (Insulated Gate Transistor) zuwa ƙirar UPS.Babban inganci na inverter na IGBT ya haifar da sake fasalin UPS.Tacewar shigar da bayanai na iya ɗaukar wasu jitu na yanzu yayin ɗaukar ƙaramin ɓangaren ƙarfin aiki.A takaice dai, an rage rabon abubuwan inductive zuwa abubuwan capacitive a cikin tacewa, an rage girman UPS, kuma ana inganta ingantaccen aiki.Abubuwan da ke cikin filin UPS da alama an warware su, amma daidaitawar sabuwar matsala tare da janareta ya sake bayyana, ya maye gurbin tsohuwar matsalar.

2. Matsalar resonance.

Matsalar capacitor tashin hankali na iya ƙara tsanantawa ko rufe shi ta wasu yanayi na lantarki, kamar jerin resonance.Lokacin da darajar ohmic na janareta ta inductive reactance da kuma darajar ohmic na shigar da tacewa capacitive reactance suna kusa da juna, kuma ƙimar juriya na tsarin tayi ƙanƙanta, motsi zai faru, kuma ƙarfin lantarki na iya wuce ƙimar ƙimar wutar. tsarin.Sabon tsarin UPS da aka ƙera shine da gaske 100% impedance mai ƙarfi.UPS 500kVA na iya samun ƙarfin 150kvar da ƙarfin wuta kusa da sifili.Shunt inductor, jerin shaƙa, da na'urorin keɓancewa na shigar da kayan aikin UPS ne na al'ada, kuma waɗannan abubuwan haɗin gwiwa duk suna haɓakawa.A zahiri, su da ƙarfin tacewa tare suna sa UPS su kasance masu ƙarfi gabaɗaya, kuma ana iya samun wasu motsin rai a cikin UPS.Haɗe tare da halayen capacitive na layukan wutar lantarki da aka haɗa da UPS, rikitaccen tsarin duka yana ƙaruwa sosai, fiye da ikon nazarin injiniyoyi na yau da kullun.

3. Saitin janareta na dizal da kaya.

Saitin janareta na diesel ya dogara da mai sarrafa wutar lantarki don sarrafa ƙarfin fitarwa.Mai sarrafa wutar lantarki yana gano ƙarfin fitarwa na matakai uku kuma yana kwatanta matsakaicin ƙimarsa da ƙimar ƙarfin lantarki da ake buƙata.Mai sarrafa yana samun kuzari daga tushen wutar lantarki a cikin janareta, yawanci ƙaramin janareta coaxial tare da babban janareta, kuma yana watsa ikon DC zuwa na'urar motsin motsin maganadisu na rotor janareta.A halin yanzu nada yana tashi ko faɗuwa don sarrafa filin maganadisu mai juyawa na janareta stator nada , ko girman ƙarfin lantarki na EMF.Juyin maganadisu na stator coil yana ƙayyade ƙarfin fitarwa na janareta.

Juriya na ciki na stator coil na saitin janareta na dizal yana wakilta ta Z, gami da sassan inductive da juriya;Ƙarfin wutar lantarki na janareta da ke sarrafa rotor excitation coil yana wakiltar E ta tushen wutar lantarki ta AC.Tsammanin cewa nauyin yana aiki ne kawai, na yanzu na sanya ƙarfin lantarki U ta daidai kusurwar lantarki na 90° a cikin zanen vector.Idan nauyin ya kasance mai juriya ne kawai, abubuwan da ke U da ni za su zo daidai ko zama cikin lokaci.A haƙiƙa, yawancin lodi suna tsakanin juriya zalla da inductive.Juyin wutar lantarki da ke faruwa ta hanyar wucewa ta yanzu ta hanyar na'urar stator ana wakilta ta vector I×Z.Haƙiƙa jimla ne na ƙananan ƙwayoyin wutar lantarki guda biyu, juriyar ƙarfin ƙarfin juriya a lokaci tare da I da ƙarfin inductor ya faɗi 90° gaba.A wannan yanayin, yana faruwa ya kasance a cikin lokaci tare da U. Domin ƙarfin lantarki dole ne ya zama daidai da jimlar juzu'in ƙarfin wutar lantarki na ƙarfin ciki na janareta da ƙarfin fitarwa, wato jimlar vector na vector E=U kuma I×Z.Mai sarrafa wutar lantarki na iya sarrafa ƙarfin lantarki ta yadda ya kamata ta canza E.

Yanzu la'akari da abin da zai faru da yanayin ciki na janareta lokacin da aka yi amfani da kaya mai ƙarfi zalla maimakon nauyin inductive.Na yanzu a wannan lokacin shine kawai akasin nauyin inductive.A halin yanzu ina jagorantar wutar lantarki vector U, kuma juriya na juriya na ciki yana sauke vector I×Z shima yana cikin kishiyar lokaci.Sannan jimlar vector na U da I×Z bai kai U.

Tunda irin ƙarfin lantarki iri ɗaya E kamar yadda yake a cikin inductive load yana samar da mafi girman ƙarfin fitarwa na janareta U a cikin ƙarfin ƙarfin aiki, mai sarrafa wutar lantarki dole ne ya rage filin maganadisu mai juyawa sosai.A haƙiƙa, mai sarrafa wutar lantarki maiyuwa ba shi da isasshen kewayon da zai iya daidaita ƙarfin fitarwa.Rotors na duk janareta suna ci gaba da farin ciki a hanya ɗaya kuma sun ƙunshi filin maganadisu na dindindin.Ko da an rufe mai sarrafa wutar lantarki gabaɗaya, har yanzu rotor ɗin yana da isasshen filin maganadisu don cajin ƙarfin ƙarfin aiki da samar da wutar lantarki.Ana kiran wannan al'amari "hankalin kai".Sakamakon tashin hankali shine overvoltage ko kashe wutar lantarki mai sarrafa wutar lantarki, kuma tsarin sa ido na janareta yana ɗaukarsa a matsayin gazawar mai sarrafa wutar lantarki (watau "asarar haɓakawa").Duk waɗannan sharuɗɗan za su sa janareta ya tsaya.Nauyin da aka haɗa da fitarwa na janareta na iya zama mai zaman kansa ko a layi daya, ya danganta da lokaci da saitin majalisar sauyawa ta atomatik.A wasu aikace-aikace, tsarin UPS shine nauyin farko da aka haɗa da janareta yayin gazawar wutar lantarki.A wasu lokuta, UPS da nauyin injin suna haɗawa a lokaci guda.The inji load yawanci yana da farawa lamba, kuma yana daukan wani takamaiman lokaci zuwa reclose bayan wani ikon gazawar.Akwai jinkiri wajen rama nauyin injin inductive na ƙarfin shigar matatar UPS.Ita kanta UPS tana da wani lokaci da ake kira “soft start” wanda ke jujjuya lodi daga baturi zuwa janareta don ƙara ƙarfin shigarsa.Koyaya, matatun shigarwar UPS ba sa shiga cikin tsarin farawa mai laushi.An haɗa su zuwa ƙarshen shigarwar UPS a matsayin ɓangare na UPS.Don haka, a wasu lokuta, babban nauyin da aka fara haɗawa da fitarwa na janareta yayin gazawar wutar lantarki shine matatar shigar da UPS.Suna da ƙarfi sosai (wani lokacin zalla capacitive).

Maganin wannan matsala a fili shine yin amfani da gyaran wutar lantarki.Akwai hanyoyi da yawa don cimma wannan, kusan kamar haka:

1. Shigar da ma'ajin sauyawa ta atomatik don sanya nauyin motar ya haɗa kafin UPS.Wasu ma'ajin canji na ƙila ba za su iya aiwatar da wannan hanyar ba.Bugu da kari, yayin kiyayewa, injiniyoyin shuka na iya buƙatar cire UPS da janareta daban daban.

2. Ƙara wani m reactance reactance zuwa rama capacitive load, yawanci ta yin amfani da layi daya da iska reactor, alaka da EG ko janareta fitarwa a layi daya allon.Wannan yana da sauƙin cimmawa, kuma farashin yana da ƙasa.Amma komai a cikin babban kaya ko ƙananan kaya, reactor koyaushe yana ɗaukar halin yanzu kuma yana shafar ma'aunin wutar lantarki.Kuma ba tare da la'akari da adadin UPS ba, adadin reactors koyaushe yana daidaitawa.

3. Shigar da inductive reactor a cikin kowane UPS don kawai rama ga capacitive reactance na UPS.A cikin yanayin ƙananan kaya, mai lamba (na zaɓi) yana sarrafa shigar da reactor.Wannan hanyar reactor ya fi daidai, amma adadin yana da girma kuma farashin shigarwa da sarrafawa yana da yawa.

4. Shigar da lambar sadarwa a gaban capacitor filter kuma cire haɗin shi lokacin da nauyin ya yi ƙasa.Tun da lokacin lamba dole ne ya zama daidai kuma kulawa ya fi rikitarwa, ana iya shigar da shi kawai a cikin ma'aikata.

Wace hanya ce mafi kyau ya dogara da yanayin da ke kan shafin da kuma aikin kayan aiki.

Idan kuna son ƙarin sani game da injinan dizal, maraba da tuntuɓar Powerarfin Dingbo ta imel dingbo@dieselgeneratortech.com, kuma za mu kasance a sabis ɗin ku a kowane lokaci.