Anti-Islanding Protection Device

PV Power Plant Grid Connection Point: Rau PV fais fab nroj tsuag nrog ib kauj ruam - nce substation, qhov no yog hais txog lub siab -voltage side busbar lossis kev sib txuas ntawm cov kauj ruam- nce substation; rau PV fais fab nroj tsuag yam tsis muaj kauj ruam- nce substation, nws yog hais txog cov khoom sib sau ua ke ntawm PV fais fab nroj tsuag.

Islanding Phenomenon: Thaum daim phiaj poob hluav taws xob, PV fais fab nroj tsuag txuas ntxiv muab lub zog rau ib feem ntawm daim phiaj de-energized. Rau me me PV fais fab nroj tsuag, lub peev xwm los ntes cov Islands tuaj sai sai thiab tshem tawm ntawm daim phiaj yog qhov tseem ceeb. Feem ntau, PV inverters tau tsim - tiv thaiv - Island tiv thaiv; Txawm li cas los xij, kom muaj kev nyab xeeb, ruaj khov, thiab txhim khu kev lag luam ntawm lub zog hluav taws xob, ib qho khoom siv tiv thaiv kev tiv thaiv -Islanding tiv thaiv tuaj yeem ntsia tau rau ntawm qhov chaw sib txuas ntawm kab sib chaws raws li cov cuab yeej tiv thaiv ntxiv kom sai sai tshem tawm cov khoom siv hluav taws xob sib txuas.

1) Cov cuab yeej SMR-3910B tuaj yeem ua haujlwm hauv nruab nrab lossis hauv zos faib rau ntawm lub tshuab hloov pauv. Txhua lub bay muaj cov haujlwm ywj pheej, thiab cov khoom siv tsuas yog txuas nrog lub network rau kev sib qhia cov ntaub ntawv. Qhov no ua rau tag nrho cov kab ke hloov pauv tau zoo thiab txhim kho nws txoj kev ntseeg tau zoo; kev ua tsis tiav hauv ib qho khoom siv tsuas yog cuam tshuam rau ib cheeb tsam.

2) Cov cuab yeej siv lub siab -kev ua tau zoo processor thiab siab - daws teeb meem A / D converter, ua ke nrog kev ntsuas siab CT, ua kom muaj qhov tseeb siab hauv kev ntsuas tej thaj chaw deb.

3) Kev tiv thaiv muaj nuj nqi yog kev ywj pheej ntawm kev sib txuas lus; network tsis ua haujlwm yuav tsis cuam tshuam rau kev ua haujlwm ntawm kev tiv thaiv.

4) Cov cuab yeej siv lub tshuab kaw tag nrho, nrog rau kev tsim ua tib zoo los tiv thaiv - cuam tshuam cov khoom, txhim kho nws kev co kuj thiab electromagnetic cuam tshuam.

5) Kev ua haujlwm saib xyuas suav nrog, ua rau tag nrho cov kab ke ua ke muaj qhov ntsuas qhov tseeb thiab tiv thaiv - muaj peev xwm cuam tshuam.

6) Ib tus neeg siv -tus phooj ywg zoo tib neeg- tshuab interface yog muab. Cov cuab yeej siv loj - npo LCD zaub nrog kev txhawb nqa lus Suav tag nrho. Cov ntawv ceeb toom kev mus ncig, ceeb toom ceeb toom, teeb liab chaw taws teeb, telemetry, thiab teeb tsa kev hloov kho yog tag nrho cov ntawv qhia meej hauv Suav rau ntawm LCD, ua kom yooj yim rau cov neeg siv kev lag luam thiab kev nkag siab.

Peb muaj cov kws tshaj lij cov neeg ua haujlwm tau mob siab rau txhua theem ntawm peb ua ntej- muag, muag, thiab tom qab- kev muag khoom los xyuas kom meej cov lus teb sai thiab kev tshaj lij. Lub tuam txhab muab 24-teev xov tooj sib tham hauv online, teb cov lus nug ntawm cov neeg siv khoom txog kev ua tau zoo ntawm cov khoom, kev ua haujlwm, thiab tus nqi hauv xov tooj, email, thiab kev pabcuam hauv online. Peb kuj tseem muab cov kev daws teeb meem raws li cov neeg siv khoom xav tau thiab muab kev kuaj xyuas thaj chaw deb, kev taw qhia, thiab kev saib xyuas rau cov khoom tsis raug. Peb cog lus rau peb cov neeg siv: hloov mus rau kev lag luam nrog cov khoom zoo, kom tau raws li cov kev xav tau sai, thiab ua kom cov neeg siv khoom txaus siab nrog kev pabcuam zoo.