Me thiab Nruab Nrab Fais Fab Inverters: Cov hluav taws xob me me thiab nruab nrab yog ib qho tseem ceeb ntawm thaj chaw nyob ywj pheej AC photovoltaic (PV) systems. Lawv txoj kev ntseeg tau thiab kev ua tau zoo yog qhov tseem ceeb rau kev txhawb nqa PV systems, siv lub zog zoo, thiab txo cov nqi hluav taws xob. Yog li ntawd, PV cov kws tshaj lij thoob ntiaj teb tau siv zog los tsim cov inverters tsim nyog rau cov ntawv thov hauv vaj tse los txhawb kev lag luam kom nrawm dua thiab txhim kho zoo dua.
Series-Type Inverters: Series- hom inverters muaj ntau yam zoo rau lub tsheb fais fab. Cov qauv tsim ua kom muaj ntau yam ntawm cov zis voltage vectors, txhim kho kev tswj tau yooj yim thiab raug; nws kuj txo qhov kev hloov pauv hauv lub cev muaj zog qhov nruab nrab ntawm qhov hluav taws xob. Lub inverter's bypass feature txhim kho qhov yooj ntawm kev them nyiaj thiab kev tswj hwm braking.
Nrog rau kev txhawj xeeb ntxiv rau hauv nroog ib puag ncig, tsheb hluav taws xob tau txais lub sijhawm tsis tshua muaj rau kev txhim kho. Hauv kev thauj mus los hauv nroog, tsheb npav hluav taws xob, vim lawv lub peev xwm nqa tau loj thiab kev ua haujlwm siab tag nrho, tau dhau los ua qhov tseem ceeb rau kev txhim kho. Cov tsheb npav hluav taws xob feem ntau siv peb -theem AC motors. Vim yog lub zog tsav lub cev muaj zog, cov khoom siv hauv peb -theem inverter yuav tsum tau tiv taus qhov hluav taws xob siab thiab kev ntxhov siab tam sim no. Qhov siab dv / dt kuj ua rau muaj hluav taws xob tseem ceeb hauv hluav taws xob thiab yuav tsum tau ua kom muaj cua sov zoo heev.
High-power inverters siv ntau-series series qauv txo qhov kev ntxhov siab ntawm ib tus neeg, txo cov kev xav tau ntawm cov khoom siv no; lawv kuj txo tus nqi dv / dt, txo cov hluav taws xob hluav taws xob thiab txo cov khoom siv hluav taws xob tsawg; thiab qhov ntau ntau ntawm cov zis ntau ntxiv txhim kho kev tswj kev ua haujlwm.
Multi-series series inverter yog tsim rau siab - fais fab tsav tsheb tshuab. Multi-series qauv txo cov teeb meem cuam tshuam nrog ntau lub roj teeb uas txuas nrog hauv cov koob, txo qis kev ntxhov siab ntawm cov khoom, thiab txo cov hluav taws xob hluav taws xob. Txawm li cas los xij, nws ua ob npaug ntawm cov roj teeb uas xav tau.
Multi-series qauv ua kom muaj ntau yam ntawm cov zis voltage vectors, txhim kho kev tswj tau yooj yim thiab raug; nws kuj txo cov kev hloov pauv hauv lub cev muaj zog nruab nrab ntawm qhov hluav taws xob. Txhawm rau kom muaj kev sib npaug sib npaug ntawm txhua pab pawg roj teeb, lub sijhawm ua haujlwm ntawm lub roj teeb zoo ib yam yog qhov tsim nyog thaum ua haujlwm. Bypassing tso cai rau kev hloov pauv ntawm lub roj teeb pob thiab kev tswj hwm lub zog ntawm lub zog ntawm lub zog.