Kuvame kakhulu embonini ye-inverter. Ungahlola kanjani iphutha ngemuva kokuthi i-inverter isetshenziswe isikhathi eside?
Ukuze wenze i-inverter isebenze ngokujwayelekile, kufanele ifakwe ngokuhambisana ngokuqinile nemininingwane yezobuchwepheshe nemiyalo ye-inverter lapho isetshenziswa, futhi kufanele ihlangabezane nezidingo zamandla wokufaka wokusebenzisa kanye nemvelo yokusebenzisa. Amandla wokufaka asetshenziswa kakhulu we-inverter ayizigaba ezintathu 380V480 V, engaguquguquka ngokuqhubekayo ngo-10%. Imvamisa yokunikezwa kwamandla kagesi we-shortwave ingama-50 / 60Hz, kanti ukwehla kungu-5%. Abaguquli bemvamisa abazinikezele kungenye indaba.
1. Ukutholwa kwesekethe sokulungisa ekutholeni okungaguquguquki kwesiguquli semvamisa
Lapho i-inverter ihlolwe ngokwezibalo, kuyadingeka ukuthi kuvivinywe umjikelezi wesilungisi ngemuva kokuthi i-inverter icishiwe. Okokuqala, susa zonke izintambo zokukhipha ze-inverter; okwesibili, thola ama-DC circuits aqondile naphikisayo ku-inverter, bese uphendulela isibonisi se-multimeter kwibhlokhi le-diode. Okwesithathu, xhuma uphenyo olumnyama nephenyo elibomvu ezigxotsheni ezinhle nezimbi zebhasi le-DC nolayini wezintambo ezintathu ngokulandelana, bese urekhoda amanani amathathu we-voltage akhonjiswe yi-multimeter; uma amanani ayisithupha alinganisiwe we-multimeter ayalingana, kukhombisa ukuthi ibhuloho lokulungisa lijwayelekile, uma kungenjalo likhombisa ukuthi kunenkinga ngebhuloho lokulungisa futhi lidinga ukulungiswa noma ukushintshwa.
Ukutholwa kwesifunda se-inverter ekutholeni okungaguquguquki kwesiguquli semvamisa
Ekuvivinyweni okungaguquki kwe-inverter, ukuhlolwa kwesifunda kwe-inverter kanye nokuhlolwa kwesekethe okucishe kufane, futhi zombili ziyenziwa lapho i-inverter icishiwe. Umehluko ukuthi esivivinyweni sesifunda se-inverter, iqhubu le-multimeter kufanele liphendulwe ukumelana × amagiya ayi-10, amaphenyi abomvu namnyama kufanele axhunywe esigxotsheni esingesihle sebhasi le-DC ngokulandelana, futhi uxhumane neqoqo lemiphumela emi-3 yocingo qopha isifunda se-inverter ngokwehlukile Futhi urekhode inani lokumelana. Amanani wokumelana amathathu akhonjiswe okokugcina ayalingana, futhi inani eliboniswe okokugcina ngu-OL. Sebenzisa indlela efanayo ukuxhuma uphenyo omnyama esigxotsheni esihle sebhasi le-DC, futhi imiphumela yokukala iyahambisana, ekhombisa ukuthi inverter ijwayelekile. Ngaphandle kwalokho, kukhombisa ukuthi kunenkinga nge-inverter module IGBT ye-inverter, futhi imodyuli ye-IGBT idinga ukushintshwa.
2. mayelana nokutholwa okunamandla kwe-inverter
Ukuhlolwa okunamandla kungenziwa kuphela ngemuva kokuthi konke ukuhlolwa okumile kujwayelekile. Ngakolunye uhlangothi, ngaphambi kokufaka amandla ku-inverter, kuyadingeka ukuthi uhlole ukuthi ngabe i-voltage yokufaka nezinga lamandla kagesi we-inverter ayalingana yini; ngakolunye uhlangothi, kuyadingeka ukubheka ukuthi ngabe ukuphela ngakunye nemodyuli kuvulekile nokuthi uxhumano luvamile yini. Ngemuva kokuthi i-inverter ivuliwe, qala uthole iphutha, bese unquma imbangela nohlobo lwephutha ngokuya ngekhodi yephutha; okwesibili, hlola ukuthi ngabe imingcele esethiwe kanye nemingcele yomthwalo olinganisiwe iyafana yini. Uma i-inverter ingaxhunyiwe kumthwalo futhi ingekho ekulayisheni umthwalo, sicela ulinganise ukuthi ngabe intambo yokukhipha izintambo ezintathu iyahambisana yini.
Isikhathi Iposi: May-10-2021