Cov parallel inverter consists ntawm ob thyristors (T1 thiab T2), muaj peev xwm ua tau, center-tapped transformer thiab ib inductor. Tus thyristor siv los muab ib txog kev tam sim no, Thaum cov inductor L siv los ua qhov chaw tam sim no. Cov thyristors no tej tshuaj no rau thiab tua los commutation capacitors txuas nrog lawv.
Txoj kev no complementary commutation txoj kev siv los tig lub peev xwm rau thiab tua. Complementary commutation txhais tau hais tias thaum T1 yog rau, Lub kaum sab xis firing yog thov T2 thiab ces lub peev xwm yuav tig tawm T1. Xyov zoo li cas yog tias thaum T2 yog rau thiab lub kaum sab xis firing yog thov kom T1, T2 yuav raug tua vim lub peev xwm voltage. Cov zis tam sim no thiab voltage yog Io thiab Vo feem.
Nws hu ua ib parallel inverter vim hais tias nyob rau hauv lub xeev ua hauj lwm, Lub peev xwm C yog txuas nrog parallel nrog lub load los ntawm cov transformer. Ib shunt inverter no kuj hu ua ib qhov chaw-tapped transformer inverter vim nws muaj ib qhov chaw-tapped transformer ntawm lub load thiab tus tsav circuit Court. Lub function ntawm ib transformer yog los hloov DC rau hauv alternating tam sim no ntawm qhov yuav tsum tau voltage.
Ua hauj lwm ntawm parallel inverters
Nws koomtxoos hauv yooj yim ob hom.
Hom Hom Hom 1
Thaum T1 yog triggered, Lub commutation peev xwm yuav kaw T2 thiab tam sim no nyob rau hauv cov cua winding yuav ntws ntawm A mus rau n. Tam sim no nyob rau hauv cov cua winding yuav ua rau tam sim no nyob rau hauv cov theem nrab cua ntws clockwise.
Hom Hom Hom 2
Yog triggering T2, Lub commutation peev xwm yuav tig tawm T1. Yog li ntawd, vim, Tam sim no nyob rau hauv cov cua winding yuav ntws ntawm B mus n thiab tam sim no nyob rau hauv cov cua winding yuav ua rau tam sim no nyob rau hauv cov cua theem cua ntws counterclockwise.
Kom zoo dua parallel inverters
Ob peb kom zoo dua parallel inverters yog raws li nram no:
Ruaj khov load voltage: Lub waveform ntawm lub load voltage yog ywj siab ntawm lub load, thiab qhov kev txwv no tshwm sim hauv inverters. Cov zis voltage ntawm koob inverter nyob ntawm lub unwanted load.
Pheej yig tshaj Circuit Court: Lub parallel inverter circuit court yog tus pheej yig tshaj thiab yooj yim li nws yuav tsum tau tsuas ob switches thiab ib center-tapped transformer.
commutation yooj yim: Cov inverters siv yooj yim C commutation lag luam. Tas lawm, Lub commutation hais tsis nqa daim ntawv qhia txog load tam sim no, Nws yog ib tug nam ntawm parallel inverters
Ob peb tswj switches: Piv nrog H-choj inverter, Tsuas ob tswj switches yuav tsum tau ua kom tiav lub lag luam. Qhov tsawg kawg yog switches yuav tsum tau rau ib tug choj H-choj inverter yog 4.