Ngwa ọhụrụ nke inverter n'ime moto ihe mgbawa

Iji ghọta ọrụ moto na-agbanwe ọsọ ọsọ, a na-eji teknụzụ inverter eme ihe na moto na-agbawa agbawa.Dị ka ngwaọrụ, inverter nwere ike ịtụgharị ọkụ ugboro ugboro ike (50Hz ma ọ bụ 60Hz) n'ime a dịgasị iche iche nke ugboro AC ike ọkọnọ, iji nweta mgbanwe ọsọ ọsọ nke moto.Ngwaọrụ na-agụnye sekit njikwa maka ịchịkwa isi sekit;Rectifier sekit maka ịtụgharị alternating ugbu a na-eduzi ugbu a;A na-eji sekit etiti etiti DC mee ka ọ dị nro na nzacha mmepụta nke sekit rectifier;sekit inverter, nke a na-eji na-atụgharị ugbu a na-aga n'ihu ka ọ bụrụ nke ọzọ.N'ime ụfọdụ ndị ntụgharị ugboro ugboro nke chọrọ ịrụ ọtụtụ ọrụ, ọ dịkwa mkpa ka a kwadebere ya na CPU maka mgbako torque na sekit kwekọrọ.Site n'ịgbanwe oge ọkọnọ ike nke stator winding nke moto, ụkpụrụ ọsọ ọsọ na-agbanwe agbanwe nwere ike ghọta ebumnuche nke nhazi ọsọ.

Inverter Dị ka usoro nhazi ọkwa dị iche iche si dị, enwere ike kewaa n'ime ụdị voltaji na ụdị ihe ngbanwe ugbu a, PAM control inverter, PWM control inverter na elu ụgbọelu ugboro PWM njikwa inverter, V / f njikwa inverter, slide ugboro akara inverter na vector akara inverter, General. inverter, elu arụmọrụ pụrụ iche inverter, elu ugboro inverter, otu frasi inverter na atọ n'ụzọ inverter, wdg.

Na ntụgharị ugboro ugboro, VVVF na-ezo aka n'ịgbanwe voltaji na ugboro ole, ebe CVCF na-ezo aka na voltaji na-agbanwe agbanwe na ugboro ugboro.N'ime ọkụ ọkụ AC eji na mba ụwa niile, ma n'ụlọ ma ọ bụ ụlọ ọrụ, voltaji na ugboro ole na-abụkarị 400V/50Hz ma ọ bụ 200V/60Hz(50Hz).Ngwaọrụ na-agbanwe ụdị ọkụ ahụ ka ọ bụrụ voltaji ma ọ bụ mgbanwe ọkụ AC ka a na-akpọ “frequency converter”.Ka iwepụta voltaji na-agbanwe agbanwe na frequencies, ngwaọrụ ahụ kwesịrị ibu ụzọ gbanwee alternating current ka ọ bụrụ direct current (DC).

A na-eji ihe ntụgharị ugboro ugboro iji chịkwaa moto ma nwee ike ịgbanwe ma voltaji na ugboro ole.Dị ka okwu ọsọ nke moto AC si dị, ọsọ n na-adaba na ugboro f, na enwere ike gbanwee ọsọ nke moto ma ọ bụrụhaala na ugboro f gbanwere.Ya mere, onye ntụgharị ugboro ugboro na-achọpụta ụkpụrụ ọsọ ọsọ site n'ịgbanwe ugboro ole ọkụ ọkụ moto, nke bụ oke arụmọrụ na nhazi ọsọ ọsọ dị elu pụtara.

N'ime mmepe nke ndị ntụgharị ugboro ugboro, ụzọ nchịkwa dị iche iche ewepụtala, gụnyere:

Sinusoidal pulse width modulation (SPWM) njikwa ọnọdụ, ebe 1U/f = C;

Ọnọdụ njikwa oghere voltaji (SVPWM);

Usoro njikwa vector (VC);

Usoro njikwa ọkụ ozugbo (DTC);

Njikọ nke Matrix - ọnọdụ njikwa njikọ, wdg.

N'elu, a kọwapụtara ngwa ọhụrụ nke inverter na moto na-agbawa mgbawa.Site na teknụzụ inverter, enwere ike gbanwee ọsọ nke moto ahụ n'ụzọ dị nro, na-eweta arụmọrụ dị elu na ihe ngwọta ike dị elu na mpaghara mmepụta ihe.