DESIGN THE 3KW DC- AC INVERTER USING IN SOLAR ENERGY SYSTEMS

In a solar energy system, the DC-AC inverter has the very importance role to supply the energy for AC loads. In this paper, we would like to introduce the design of DC-AC inverter with 3KW for individual home. The inverter uses the DC-DC Boost converter with 400V output and the H- Bridge DC- AC with 220Voutput. In general, the output of solar cell swings from 150V to 400V, and the Boost DC-DC uses IC UCC2818 working at 20,9khz frequency and fix the output voltage around 400VDC. SPWM method is used to create a signal to control the H-bridge and produce the 220VAC output voltage with 50Hz frequency. The results simulation showed that the input and output are well adapted for the demand of the design.
Bạn đang xem trang mẫu tài liệu này.