Umphakeli okonga amandla ukukhumbuza ukuthi umqondo wokubhuleka ubhekise ekuhambeni kwamandla kagesi ukusuka ohlangothini lwenjini ukuya ohlangothini lwesiguquli samafrikhwensi (noma uhlangothi lokuphakela amandla). Ngalesi sikhathi, ijubane lemoto liphakeme kunejubane lokuvumelanisa, futhi amandla omthwalo ahlukaniswe amandla e-kinetic namandla angaba khona. Amandla e-Kinetic (anqunywa isivinini nesisindo) anqwabelana ngokuhamba kwento. Lapho amandla e-kinetic ehla aze afike ku-zero, into isesimweni sokuma. Indlela yemishini yamabhuleki iwukusebenzisa idivayisi yokubhuleka ukuguqula amandla e-kinetic ento abe ukungqubuzana nokusetshenziswa kwamandla. Kuma-converter ama-frequency, uma i-output frequency yehla, isivinini se-motor sizokwehla ne-frequency. Kuleli qophelo, inqubo yokubhuleka izokwenzeka Amandla akhiqizwe ukubhuleka azobuyela ohlangothini lwesiguquli sefrikhwensi. Lawa mandla angahlakazwa ngokushisisa ukumelana. Uma isetshenziselwa ukuphakamisa imithwalo yekilasi, amandla (amandla angaba khona) kufanele futhi abuyele ohlangothini lwesiguquli (noma ukunikezwa kwamandla) ukuze kubhuleki ngesikhathi sokwehla. Le ndlela yokusebenza ibizwa ngokuthi 'i-regenerative braking', futhi ingasetshenziswa ekubhulekini kwesiguquli se-frequency. Ngesikhathi sokuncishiswa, indlela yokubuyisela amandla ohlangothini lokunikezwa kwamandla kwe-inverter esikhundleni sokuwasebenzisa ngokusebenzisa ukushisa ibizwa ngokuthi 'indlela yokubuyisela amandla kabusha'. Empeleni, lolu hlelo lokusebenza ludinga inketho 'yeyunithi yempendulo yamandla'.
Ingabe ukhetha ukusebenzisa iyunithi yokubhuleka edla amandla? Noma ingabe iyunithi yempendulo yamandla?
Ukubhuleka kokusetshenziswa kwamandla okukodwa kanye nokubhuleka impendulo kunomphumela ofanayo. Zonke ziyizindlela ezihlinzeka nge-braking current ye-motor.
II Ungakhetha kanjani iyunithi yokubhuleka edla amandla? Noma iyunithi yempendulo? Lokhu kuncike ezicini zalezi zindlela ezimbili zokubhuleka. Uma eyangaphambili isebenza ngokuqhubekayo i-100% yesikhathi eside, iyunithi yokubhuleka kanye ne-braking resistor kudingeka ikhethe amandla amakhulu ngokwanele, okuletha ukuphazamiseka ekubhulekeni kwamandla amakhulu. Isibonelo, ukuchithwa kokushisa kanye nezinkinga zevolumu ye-resistor zivelele, kanti lezi zamuva zingasebenza ngokuqhubekayo ku-100%. Ivolumu incane uma iqhathaniswa nokubhuleka kokusetshenziswa kwamandla. Kodwa-ke, izindleko zokubhuleka ukusetshenziswa kwamandla ziphansi kakhulu kunalezo zokubhuleka impendulo.
Isiphetho esithathwe kulokhu okungenhla ukuthi kumasistimu ane-braking yesikhathi esifushane, kubiza kakhulu ukukhetha amayunithi okubhuleka asebenzisa amandla kanye nama-resistors ngaphandle kokungabaza. Kuzinhlelo ezinamabhuleki amandla esikhathi eside angu-100%, amayunithi empendulo yamandla kufanele asetshenziswe. Ezinhlelweni ezingaphansi kuka-15kW, kunconywa ukusebenzisa amabhuleki ayonga amandla, kungakhathaliseki ukuthi awesikhathi esifushane noma eside. Ngoba iyonga kakhulu (ngisho namandla angu-100% e-continuous braking).