Txoj Cai Ua Haujlwm ntawm Kev Tswj Tsis Siv Neeg ntawm Diesel Generator Teeb

Tam sim no, nrog kev loj hlob tsis tu ncua ntawm kev lag luam kev lag luam, kev siv hluav taws xob niaj hnub ntawm cov ntaub ntawv chaw tseem qhia txog kev loj hlob ib txhij.Thaum lub mains fais fab tsis ua hauj lwm tshwm sim, ib lub tshuab hluav taws xob ib leeg tsis tuaj yeem ua tau raws li cov ntaub ntawv chaw thaub qab lub zog xav tau txhua, yog li nws feem ntau xav tau lub zog ntau dua.Cov chav nyob yog khiav nyob rau hauv parallel.Txhawm rau txhim kho kev lag luam kev ua tau zoo thiab kev ntseeg siab ntawm lub zog ua haujlwm, qhov no yuav tsum muaj kev tswj xyuas qhov system tsis tsuas yog xav kom lub tsev nws tus kheej muaj kev ua tau zoo, tab sis kuj xav kom txhua chav tsev tsim nyog dais lub cev muaj zog thiab reactive loads hauv qab dej. qhov system.Cov kev xav tau no yog sib sau ua ke nyob rau hauv txoj cai tswj kev ceev ntawm tus thawj txav txav thiab qhov kev tswj hwm qhov hluav taws xob ntawm qhov synchronous generator .

1. Droop tswj.

Txhawm rau kom muaj kev ruaj ntseg ntawm kev ua haujlwm sib luag ntawm cov tshuab hluav taws xob diesel, droop tswj feem ntau tau txais, uas yog, P / f droop tswj thiab Q / V droop tswj tau siv kom tau txais kev ruaj khov thiab qhov hluav taws xob.Txoj kev tswj hwm no cuam tshuam rau lub zog ua haujlwm tawm los ntawm txhua chav.Sib cais tswj nrog lub zog reactive, tsis tas yuav tsum muaj kev sib txuas lus thiab kev sib koom ua ke ntawm cov chav nyob, kom ua tiav cov kev sib raug zoo ntawm kev sib koom ua ke ntawm cov chav nyob, thiab kom ntseeg tau tias qhov sib npaug ntawm cov khoom siv thiab kev xav tau thiab kev ruaj ntseg ntawm lub tshuab hluav taws xob diesel teeb tsa cov kab ke sib luag.

Lub droop tswj adopts voltage thiab tam sim no dual-loop tswj.Lub voj sab hauv tam sim no muaj cov lus teb ceev ceev, uas yog siv los txhim kho lub zog zoo ntawm lub tshuab hluav taws xob teeb.Lub tshuab hluav taws xob sab nraud lub voj voog muaj qhov ua kom qeeb qeeb qeeb, uas tuaj yeem tswj cov zis hluav taws xob ntawm lub kaw lus thiab tsim kom muaj lub voj voog sab hauv.Teeb liab.Ua ntej, siv qhov ntsuas ntsuas los sau qhov voltage thiab tam sim no ntawm qhov chaw thauj khoom, suav cov khoom siv hluav taws xob tam sim thiab rov ua haujlwm ntawm lub tshuab hluav taws xob teeb, thiab tom qab ntawd dhau lub lim dej qis LPF kom tau txais lub zog nruab nrab;Piv txwv tias qhov ntsuas zaus khiav, lub tshuab hluav taws xob teeb tsa cov khoom siv hluav taws xob P, F, U yog qhov zaus thiab ntsuas qhov ntsuas hluav taws xob ntawm lub zog hluav taws xob raws li.Cov zis zaus thiab voltage amplitude commands tau txais los ntawm qhov txuas droop, thiab tom qab ntawd qhov kev siv hluav taws xob yog tsim los ntawm qhov sib txuas hluav taws xob.Tom qab ntawd, qhov siv hluav taws xob yuav siv los ua qhov voltage thiab tam sim no dual txuas Controller input.

2. Kev tswj ceev ceev (qhib lub zog-zaus tswj) system.

Noj lub zog fN ntawm lub tshuab hluav taws xob synchronous raws li tus nqi siv, thaum lub zog ua haujlwm ntawm cov khoom qis qis nce mus rau Pred, cov zis zaus ntawm lub tshuab hluav taws xob synchronous poob rau tus nqi ruaj khov tshiab ntawm fref, thiab txoj kab nqes ntawm ntu AB yog qhov static hloov ntawm synchronous generator.Qhov sib txawv coefficient mp, Δf = fref-fN, ΔP = PN-Pred.Thaum lub tshuab hluav taws xob diesel ua haujlwm sib luag, txhua lub tshuab hluav taws xob dynamically kho nws cov zaus thiab lub zog kom txog rau thaum tag nrho cov khoom yuav tsum tau ua.Yog tias lub peev xwm ntawm txhua chav tsim hluav taws xob zoo ib yam, qhov kev hloov kho zoo li qub kuj zoo ib yam, thiab lub zog tso zis yog tib yam;Yog hais tias chav tsev muaj peev xwm sib txawv, qhov kev hloov kho zoo li qub ntawm chav tsev nrog lub peev xwm loj dua ib chav tsev loj dua, thiab chav tsev yuav dais ntau dua downstream loads.

3. Kev tswj hluav taws xob (reactive fais fab-voltage tswj) system.

Nyob rau hauv tib txoj kev, txoj kab nqes ntawm CD seem yog hu ua reactive zog-voltage droop tswj coefficient nq ntawm lub tshuab hluav taws xob synchronous, uas qhia txog kev sib raug zoo ntawm reactive zog increment ntawm lub tsim teeb thiab lub davhlau ya nyob twg voltage sib txawv, thiab ΔU = Uref-UN, ΔQ = QN-Qred .Raws li kev tswj hwm daim duab duab ntawm lub zog excitation ntawm lub tshuab hluav taws xob synchronous, qhov kev siv hluav taws xob tau txais los ntawm kev suav ntawm qhov ntsuas qhov txuas thiab qhov sib txawv hloov kho qhov txuas, thiab tom qab ntawd muab piv nrog lub tshuab hluav taws xob qhov hluav taws xob hluav taws xob (qhov voltage regulator yog PI tswj) , kom lub tshuab hluav taws xob davhlau ya nyob twg voltage yog ib txwm ceev ceev ua raws li cov lus txib voltage.

Yog tias koj xav paub ntau ntxiv txog cov tshuab hluav taws xob diesel, thov hu rau Dingbo Power los ntawm email dingbo@dieselgeneratortech.com.