Mgbe ihe fọrọ nke nta ka ọ bụrụ afọ 10 nke mmepe, ụgbọ ala eletrik ọhụrụ emepụtala ụfọdụ mkpokọta teknụzụ. Enwere ọtụtụ ihe ọmụma na nhazi nke akụkụ ụgbọ ala eletrik na nhọrọ na nhazi nke components. N'ime ha, nhazi nke precharge resistor na precharge circuit kwesịrị ịtụle ọtụtụ ọnọdụ na ọnọdụ ọrụ. Nhọrọ nke precharge resistor na-ekpebi ọsọ nke oge a na-ebufe ụgbọ ala, nha nke oghere ndị ahụ nwere.precharge resistor, na nchekwa, ntụkwasị obi, na nkwụsi ike nke ọkụ eletrik dị elu nke ụgbọ ala.
Ihe mgbochi precharge bụ resistor nke na-eji nwayọ na-ebufe capacitor n'oge mmalite nke ike ọkụ dị elu nke ụgbọ ala. Ọ bụrụ na enweghị precharge resistor, oke chaja ugbu a ga-akụri capacitor. A na-etinye ọkụ eletrik dị elu ozugbo na capacitor, nke kwekọrọ na sekit dị mkpirikpi ozugbo. Ogologo oge dị mkpirikpi ga-emebi ihe eletriki eletrik dị elu. Ya mere, a ga-eburu n'uche precharge resistor mgbe ị na-emepụta sekit iji hụ na nchekwa sekit.
Enwere ebe abụọprecharge resistorsna-eji na ọkara na elu voltaji sekit nke electric ụgbọ ala, ya bụ moto controller precharge circuit na elu voltaji ngwa precharge circuit. Enwere nnukwu capacitor na moto njikwa (inverter circuit), nke kwesịrị ka a kwụọ ụgwọ iji jikwaa capacitor chaja ugbu a. Ngwa ngwa voltaji dị elu n'ozuzu gụnyere DCDC (DC converter), OBC (chaja on-board), PDU (igbe nkesa ike dị elu), mgbapụta mmanụ, mgbapụta mmiri, AC (compressor ikuku) na ihe ndị ọzọ, yana nwekwara ihe ndị ọzọ. nnukwu capacitors n'ime components. , yabụ achọrọ precharging.
Precharge resistorsR, precharge time T, na achọrọ precharge capacitor C, oge nchaji na-abụkarị 3 ruo 5 ugboro RC, na oge ịgba ụgwọ na-abụkarị milliseconds. Ya mere, precharging nwere ike mechaa ngwa ngwa ma ọ gaghị emetụta atụmatụ njikwa ike ụgbọ ala. Ọnọdụ maka ikpe ma precharging agwụla bụ ma ọ ruru 90% nke voltaji batrị ike (na-abụkarị nke a bụ ikpe). Mgbe ị na-ahọrọ precharge resistor, a ga-atụle ọnọdụ ndị a: voltaji batrị ike, contactor rated current, capacitor C value, okpomọkụ kachasị elu, ịrị elu okpomọkụ nke resistor, voltaji mgbe precharge, precharge oge, mkpuchi mkpuchi uru, pulse energy. Usoro mgbako maka ike pulse bụ ọkara nke ngwaahịa nke square nke voltaji pulse na ọnụ ahịa capacitance C. Ọ bụrụ na ọ bụ usu na-aga n'ihu, mgbe ahụ ngụkọta ike kwesịrị ịbụ nchikota nke ume niile.
