Lantarki dynamometer cikakken kayan aikin gwaji ne don gwada aikin injinan wuta daban-daban. Ana amfani da shi musamman don gwada ƙarfin shigar da fanfo, famfo ruwa, na'ura mai aiki da ruwa ko na'ura mai ba da hanya tsakanin hanyoyin sadarwa, kuma ana iya amfani da ita don gwada ƙarfin fitarwa na injuna. Yana da cikakken aiki (tare da yanayin wutar lantarki da wutar lantarki), babban aiki da kayan gwaji masu mahimmanci. An haɗa shi da haɗin gwiwa tare da injin da aka gwada ta hanyar haɗin shaft, ana amfani da shi don daidaitawa da sarrafa nauyin motar da aka gwada, don auna ma'auni kamar karfin wuta, gudu, halin yanzu, ƙarfin lantarki, wutar lantarki, inganci, da dai sauransu na motar. Da sauran ayyukan gwajin wutar lantarki na musamman, kamar gwajin aminci, gwajin gwajin ma'auni mai ƙarfi, da sauransu.
Shari'ar aikace-aikacen na'urar mayar da martani ta PFA a cikin masana'antar dynamometer
Binciken tsarin tsarin sarrafa dynamometer na yanzu:
Zabin farko:
Yi amfani da ABB da Siemens m mitar martani hadedde na'ura (hudu mai jujjuya mitar) don saduwa da buƙatun aiki na dynamometer. Wannan nau'in bayani yana da farashi mai girma, daidaitaccen juzu'i mai kyau, da kwanciyar hankali na sauri.
Zabi na biyu:
Amfani da ABB da Siemens talakawa masu jujjuya mitoci tare da tsarin na'urar gyara gyara na'urar don biyan buƙatun aiki na dynamometer. Wannan nau'in mafita yana haɗa fa'idodin duniya na ABB da Siemens mitar mai sauya algorithms, da daidaiton juzu'i da daidaiton saurin ci gaba da cika cikakkun buƙatun dynamometer. A gefe guda, ta yin amfani da na'urar amsa mai gyara PFA tana da ƙimar farashi mafi girma, kuma yana ba da ƙarfin kuzarin injin gwajin da ke rakiyar a cikin yanayin samar da wutar lantarki zuwa grid, tare da jituwa na yanzu <5% da ƙarfin wutar lantarki <1%.
Zabi na uku:
Masu canza mitar mitoci huɗu na cikin gida suna da irin wannan farashin zuwa bayani na biyu, amma vector algorithm na masu sauya mitar gida yana da iyakancewa, musamman wajen sarrafa daidaiton kwanciyar hankali da daidaiton juzu'i wanda ke shafar aikin dynamometer.
Babban Bayanin Fasaha na Na'urar Gyaran Gwiwar PFA:
⑴ Ɗauki naúrar sarrafawa ta tsakiya mai sauri DSP:
Haɓaka sabbin software na gyara ra'ayi na gyarawa, tare da ingantaccen daidaiton sarrafawa, kwanciyar hankali mai kyau, ƙarancin jituwa, da ƙarfin hana tsangwama;
⑵ Karɓar sabuwar fasaha ta SVPWM a cikin masana'antar:
Haɓaka sabon ƙarni na SVPWM fasahar sarrafa vector don saduwa da buƙatun gyara ra'ayoyin ma'auni na ƙasa don jituwa na yanzu;
⑶ Daidaitaccen sadarwar RS485 da nunin ikon amsawa:
Samfurin ya zo daidaitaccen tare da sadarwar RS485 da nunin sadarwa na maɓalli, kuma duk sigogin sarrafa software suna buɗe don nunawa da gyara kurakurai, yin sa ido kan samfur dacewa;
⑷ Hana tasirin tsibiri:
Software yana lura da matsayin grid ɗin wutar lantarki a cikin ainihin lokaci, kuma nan da nan yana dakatar da amsawar makamashin lantarki zuwa grid lokacin da grid ɗin ya yanke, don hana tasirin tsibiri;
⑸ Karɓar fasahar tacewa LC:
Inganta tacewa LC don kawar da jituwa da tsangwama ta hanyar lantarki, tare da ƙarfin lantarki da THD na yanzu <5%, tabbatar da ra'ayoyin makamashi mai tsabta;
Yarda da fasahar nuna wariya ta tsarin lokaci ta atomatik:
Haɓaka fasahar nuna wariya ta tsarin lokaci ta atomatik, ba da damar jerin lokaci na grid ɗin wutar lantarki na matakai uku don haɗa su cikin 'yanci ba tare da buƙatar bambance-bambancen hannu ba;
Haɓaka ƙirar kayan masarufi fiye da daidaitattun buƙatun ƙasa don juriyar ƙarfin lantarki:
Sabbin ƙirar kayan masarufi da aka haɓaka sun cika buƙatun juriya na minti 1 na ƙarfin lantarki na 2500 volts AC, tare da ɗigon ruwa ƙasa da 2mA, nesa da ƙa'idodin ƙasa na 30mA;
⑻ Haɓaka matakin gyara na'ura na yanzu:
Sabbin ingantattun kayan masarufi da software na sarrafawa, rage girman injin samfur sama da 31% da haɓaka halin yanzu da 34%;
Sanya fuses:
Sanya DC da fuses AC mai hawa uku, tabbatar da kariyar gajeriyar hanya ta kasance a wurin, kuma da garantin amintaccen aiki na inverter;
⑽ Gina a cikin na'urar tacewa shigarwa, cikakken aikin tace amo, tsangwama ga grid wutar lantarki shine 1/4 na na masu sauya mitar kasuwanci na yau da kullun;
⑾ Gina cikin ra'ayoyin gyarawa mai aiki na gaba-gaba, wanda zai iya mayar da martani ga sabunta makamashin lantarki zuwa grid. Gina a cikin reactor da tacewa, ana iya haɗa kai tsaye zuwa grid ɗin wutar lantarki, tare da ingantaccen martani na makamashi har zuwa 97%. Ajiye makamashi da 20% zuwa 50% fiye da masu juyawa na yau da kullun, tare da asarar zafi a ƙasa da 3% na birki na juriya, rage tushen zafi, da haɓaka yanayin aminci;
12. Gina a rectifier feedback aiki gaba-karshen, ta yin amfani da IGBT gyarawa, zai iya rage 15% zuwa 25% na ikon grid iya aiki idan aka kwatanta da yin amfani da wani janar mita Converter gyara gada gyara;
⒀ Gina a cikin ra'ayoyin gyarawa mai aiki na gaba-gaba, ma'aunin wutar lantarki har zuwa 0.99;
Gina a rectifier feedback aiki gaba-karshen, a lokacin rated aiki, da THD murdiya lantarki ƙarfin lantarki ne kasa da 5%, da kuma THD murdiya grid halin yanzu ne kasa da 5%, saduwa da ingancin bukatun na grid;
Duk abin zagaye, mai jituwa tare da injin maganadisu na dindindin da na'urori masu sarrafa injin asynchronous;
485 sadarwa aiki, goyon bayan al'ada 485 sadarwa yarjejeniya a cikin RTU yanayin;
⒄ Yana yana da mahara kariya ayyuka kamar overcurrent, obalodi, short circuit, overvoltage, hardware overvoltage, undervoltage, ikon grid lokaci asarar, ikon grid amplitude, overheating, waje kuskure shigar da, da dai sauransu, don tabbatar da aminci kuma mafi aminci tsarin aiki;
Sauƙi don shigarwa, gyarawa, da aiki, tare da dacewa da kulawa da kulawa;
Binciken shari'ar aikace-aikacen na'urar amsa mai gyara dynamometer:
Tianjin Keda Power Testing Technology Co., Ltd an sadaukar da shi ne don gwajin babura, motoci, injina da mahimman abubuwan da suke aiki, tare da tarihin ci gaban sama da shekaru 20. Tun daga 2008, yana amfani da Siemens na duniya mai jujjuya mitar vector da mafita na na'urar mu mai gyara PFA.
Ɗaukar ACD-11 AC dynamometer na lantarki, wanda shine na'urar gwaji na musamman don ƙananan matakan gwajin injin mai gaba ɗaya, a matsayin misali, tsarin yana ɗaukar injin AC da fasahar sarrafa mitar, da fasahar kwamfuta da software na gwaji, don biyan buƙatun gwaji na ƙananan injunan man fetur na gaba ɗaya.
2. Babban ayyuka:
1. Wannan tsarin ya ƙunshi sassa masu zuwa:
(1) Mai watsa shiri: dynamometer wutar AC;
(2) Ikon Dynamometer: SIEMENS AC na'urar daidaita saurin mitar mitar, ta amfani da ƙulli na hannu don daidaita wurin yanayin aiki;
(3) Sashe na ganowa da sarrafa bayanai: amfani da kwamfutoci masu sarrafa masana'antu don ganowa da nuna sigogin ganowa daban-daban, sarrafa bayanai, buga rahotannin gwaji, da zana sifofin halayen injin;
2. Karɓar SIEMENS cikakkiyar na'urar sarrafa dijital, wutar lantarki ta AC tana da jihohin aiki guda biyu: lantarki da dynamometer. Lokacin da lantarki, zai iya fitar da injin don yin aiki ta atomatik, kuma lokacin da aka yi amfani da dynamometer, yana amfani da kaya ga injin, tare da halayen sarrafawa mai sauri da kwanciyar hankali;
3. Yayin aiki na dynamometer, ana mayar da makamashin inji na injin zuwa grid ɗin wuta ta hanyar na'urar mai gyara PFA. Lokacin da dynamometer ke aiki a ƙasa da ƙimar ƙimar mitar mitar mai canzawa, zai iya isa ga ƙarfin ƙarfin ƙarfin ƙarfin ƙarfin kuzarin dynamometer. Lokacin da dynamometer yayi aiki sama da ƙimar ƙimar mitar mitar mai canzawa, zai iya isa ga ƙimar ƙarfin dynamometer;
4. dynamometer yana ɗaukar iko na yau da kullun ko yanayin sarrafa juzu'i;
Daidaiton gwajin tsarin yana kiyaye daidaiton sarrafa Siemens mai jujjuya mitar vector na duniya
(1) Sauri: ± 0.2% ± 1r/min;
(2) Karfin wuta: ± 1%;
