Kamora lilemo tse ka bang 10 tsa nts'etsopele, likoloi tse ncha tsa motlakase li thehile pokello ea theknoloji.Ho na le tsebo e ngata mabapi le moralo oa likarolo tsa koloi ea motlakase le khetho le ho bapisa likarolo.Har'a bona, moralo oa mochine oa precharge potolohong ea precharge o hloka ho nahana ka maemo a mangata le maemo a sebetsang.Khetho ea mochini o thibelang ho tjhaja o etsa qeto ea lebelo la nako ea ho tjhaja koloi, boholo ba sebaka se nkiloeng keprecharge resistor, le tšireletseho, ho tšepahala, le botsitso ba motlakase oa koloi o nang le matla a phahameng.
Mohanyetsi oa precharge ke mohanyetsi o tjhajang capacitor butle-butle nakong ea pele ea matla a phahameng a matla a koloi.Haeba ho se na mohanyetsi oa precharge, ho tjhaja ho feteletseng hona joale ho tla senya capacitor.Motlakase oa matla a phahameng o sebelisoa ka ho toba ho capacitor, e lekanang le potoloho e khutšoanyane ea hang-hang.Nako e fetelletseng ea nako e khuts'oane e tla senya likarolo tsa motlakase tse matla.Ka hona, mohanyetsi oa precharge o lokela ho nahanoa ha o theha potoloho ho netefatsa polokeho ea potoloho.
Ho na le libaka tse peli mooprecharge resistorsli sebelisoa lipotolohong tsa maqhubu a mahareng le a phahameng a likoloi tsa motlakase, e leng "motor controller precharge circuit" le "high voltage accessory precharge circuit".Ho na le capacitor e kholo ho molaoli oa motlakase (inverter circuit), e hlokang ho tjhaja esale pele ho laola capacitor tjhaja hajoale.Lisebelisoa tse nang le matla a phahameng ka kakaretso li kenyelletsa DCDC (DC converter), OBC (chaja e holim'a board), PDU (lebokose la kabo ea matla a phahameng a matla), pompo ea oli, pompo ea metsi, AC (compressor ea moea) le likarolo tse ling, hape ho na le li-capacitor tse kholo ka har'a likarolo., kahoo ho tjhaja esale ho hlokahala.
Precharge resistorsR, nako ea precharge T, le precharge capacitor C e hlokahalang, nako ea precharge hangata ke makhetlo a 3 ho isa ho a 5 RC, 'me nako ea precharge hangata ke milliseconds.Ka hona, precharging e ka phethoa kapele mme e ke ke ea ama leano la ho laola matla a koloi.Boemo ba ho ahlola hore na precharging e phethiloe ke hore na e fihla ho 90% ea matla a betri ea matla (hangata ho joalo).Ha u khetha mochine oa precharge, maemo a latelang a lokela ho nahanoa: matla a betri ea motlakase, contactor rated current, capacitor C value, the maximum ambient temperature, the temperature of the resistor, voltage after precharge time, precharge value , pulse energy.Foromo ea lipalo bakeng sa matla a pulse ke halofo ea sehlahisoa sa lisekoere tsa pulse voltage le point capacitance C boleng.Haeba e le sekhahla se tsoelang pele, joale matla a kakaretso e lokela ho ba kakaretso ea matla a li-pulse tsohle.
