Tam sim no, hluav taws xob hluav taws xob tiv thaiv tam sim no tau dhau los ua qhov teeb meem kub hauv kev tshawb fawb ntawm photovoltaic daim phiaj- txuas nrog. Tsev kawm ntawv tshawb fawb cov tsev kawm ntawv thiab cov chaw tsim khoom tab tom kawm. Qhov loj ntawm cov dej xau tam sim no nyob ntawm tus kab mob parasitic capacitance Cpv ntawm photovoltaic PV thiab hauv av, thiab kev hloov pauv ntawm cov hom voltage. tus nqi. Tus nqi ntawm parasitic capacitance muaj feem xyuam rau cov xwm txheej xws li ib puag ncig ib puag ncig, photovoltaic vaj huam sib luag loj thiab qauv, thiab feem ntau nyob ib ncig ntawm 50 ~ 150nF / kW. Tus nqi ntawm kev hloov pauv ntawm ntau hom-mode voltage muaj feem xyuam rau yam xws li inverter topology thiab modulation algorithm.
Rau cov tsoos ib leeg / peb-theem transformerless photovoltaic daim phiaj- txuas inverter topology, ob qho tib si hauv paus rau kev ua haujlwm zoo ntawm cov hom tam sim no (kua tam sim no) yog: tus nqi inductance ntawm txhua tus choj caj npab raug xaiv tib yam; tsis yog -zero vector yog siv los ua ke cov vector vector, kom Cov hom hluav taws xob zoo nyob tas li.
