Iji mezuo ọrụ ọsọ nke moto, a na-ejikarị teknụzụ inverter eme ihe nke ukwuu na moto na-egbochi mgbawa. Dịka ngwaọrụ, inverter nwere ike ịgbanwe ọkọnọ ike ugboro ugboro (50Hz ma ọ bụ 60Hz) ka ọ bụrụ ụdị ọkụ eletrik AC ugboro ugboro dị iche iche, iji nweta ọrụ ọsọ mgbanwe nke moto ahụ. Ngwaọrụ ahụ gụnyere sekit njikwa maka ijikwa sekit bụ isi; sekit Rectifier maka ịtụgharị ọkụ mgbanwe ka ọ bụrụ ọkụ kpọmkwem; sekit etiti DC na-eji ire ụtọ ma na-enyocha mmepụta nke sekit rectifier; sekit Inverter, nke a na-eji agbanwe ọkụ kpọmkwem ka ọ bụrụ ọkụ eletrik agbanwe agbanwe. Na ụfọdụ ndị na-agbanwe ugboro ugboro nke chọrọ ịrụ ọtụtụ ọrụ, ọ dịkwa mkpa ka e nwee CPU maka ngụkọ torque na sekit kwekọrọ. Site na ịgbanwe ugboro ike nke winding stator nke moto ahụ, nhazi ọsọ ugboro ugboro mgbanwe nwere ike imezu ebumnuche nke nhazi ọsọ.
Inverter Dịka ụzọ nhazi dị iche iche si dị, enwere ike kewaa ya n'ime inverter ụdị voltaji na inverter ụdị ugbu a, inverter njikwa PAM, inverter njikwa PWM na inverter njikwa PWM ugboro ole na ole, inverter njikwa V/f, inverter njikwa ugboro ole na ole na inverter njikwa vector, inverter izugbe, inverter pụrụ iche arụmọrụ dị elu, inverter ugboro ugboro, inverter otu oge na inverter nke atọ, wdg.
N'ime ihe mgbanwe ugboro, VVVF na-ezo aka na mgbanwe voltaji na ugboro ugboro, ebe CVCF na-ezo aka na voltaji na ugboro ugboro na-agbanwe agbanwe. N'ime ihe ọkụ eletrik AC eji eme ihe na mba dị iche iche gburugburu ụwa, ma n'ụlọ ma ọ bụ ụlọ ọrụ mmepụta ihe, voltaji na ugboro ugboro na-abụkarị 400V/50Hz ma ọ bụ 200V/60Hz (50Hz). Ngwaọrụ nke na-agbanwe ọkụ eletrik dị otú ahụ ka ọ bụrụ voltaji ma ọ bụ mgbanwe ugboro ugboro a na-akpọ "ihe mgbanwe ugboro ugboro". Iji mepụta voltaji na ugboro ugboro na-agbanwe agbanwe, ngwaọrụ ahụ kwesịrị ibu ụzọ gbanwee ọkụ eletrik na-agbanwe agbanwe ka ọ bụrụ ọkụ eletrik kpọmkwem (DC).
A na-eji ihe mgbanwe ugboro ole a achịkwa moto ahụ ma nwee ike ịgbanwe ma voltaji ma ugboro ole a. Dịka ngosipụta ọsọ nke moto AC si dị, ọsọ n kwekọrọ na ugboro ole a gbanwetụrụ f, a pụkwara ịgbanwe ọsọ moto ahụ ma ọ bụrụhaala na agbanwee ugboro ole a gbanwetụrụ f. Ya mere, ihe mgbanwe ugboro ole a na-ahụ maka nhazi ọsọ site na ịgbanwe ugboro ole a na-enye moto ike, nke bụ ụzọ dị elu na nke dị elu iji chịkwaa ọsọ.
N'ime mmepe nke ndị na-agbanwe ugboro ugboro, ọtụtụ ụzọ njikwa agbanweela, gụnyere:
Ụdị njikwa nke modulation obosara mkpali sinusoidal (SPWM), ebe 1U/f=C;
Ụdị njikwa vektọ oghere voltaji (SVPWM);
Ụdị njikwa vektọ (VC);
Ọnọdụ njikwa ike ozugbo (DTC);
Njikọta Matrix - ụdị njikwa njikọ, wdg.
N'elu, a kọwara ojiji ọhụrụ nke inverter na moto na-egbochi mgbawa. Site na teknụzụ inverter, enwere ike ịgbanwe ọsọ nke moto ahụ n'ụzọ na-agbanwe agbanwe, na-eweta arụmọrụ dị elu na ngwọta ike dị elu na ngalaba ụlọ ọrụ mmepụta ihe.
Oge ozi: Ọgọst-26-2023