The Reseach On Inverter Of Power Photovolyaic Of Green Residence

In recent years, on the one hand people increasingly focus on environmental protection,the other hand new energy development has been paid increasing attention. In this paper, lightgreen residential power generation systems,as a household power supply that can be used asalternators, will produce electricity fed into the grid. It is be used as small-scale residentialpower generation systems and achieve energy-saving environmental protection.The research in this paper involves Maximum PowerPoint Tracking techniques,topologyand control method of the PV grid-connected power generation and control method of PVgeneration--connected generation etc．Solar cells convert light energy into electrical energy, but the output power and theamount of sunlight and temperature is nonlinear, it requires a corresponding maximum powerconverter with the appropriate algorithm to improve the power output of solar cells. Theentire tracing principle is proposed the impedance matching as the foundation idea, andcoordinate perturbation observation method skill.Inverter between the solar cells and an important part of power grid, which determinesthe stability of the photovoltaic power generation system. The model of state space averagingmethod is studied for the grid inverter control provides a reasonable solution.According to green residential grid-connected inverter topology requirements, thecontrol core of C8051F350of the inverter is small size, low cost, high efficiency and canreduce the great harmful effects of fluctuating of voltage only bending over the array andoutput.The inverter control strategy is studied. Asynchronous digital phase locked frequencymodulation algorithm is used for the control method of grid reference current phasefrequency.In this paper, green residential photovoltaic inverters have been studied. The commonlyused MPPT, inverter topology and control method of the advantages and disadvantages areanalyzed to study for green residential grid-connected photovoltaic power generationsystem,its main circuit parameters were designed to complete the control system based onC8051F350hardware and software design.