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The Research Of Fuzzy/PI Control Method In Single Phase Photovoltaic Grid-connected Generation System

Posted on:2014-07-25Degree:MasterType:Thesis
Country:ChinaCandidate:J Y AnFull Text:PDF
GTID:2252330425990740Subject:Control theory and control engineering
Abstract/Summary:PDF Full Text Request
With the continuous development of human society, more and more demandfor energy of all walks of life. At present, we use the most energy is fossil energy,this energy is non-renewable energy generated in the combustion process and theenvironmental impact. In this environment, people start looking for clean,renewable energy. Photovoltaic power generation due to the energy of the infiniteand the entire system will not produce emissions in power generation over species,wastewater pollution of the environment has been widespread concern of mankind.This paper is to study photovoltaic single-phase grid-connected system, asfollows.First, he researched the development of the global PV industry and analyzedthe works and electrical characteristics of the photovoltaic cells.Secondly, he analyzed some major issues of the photovoltaic powergeneration system. Such as the maximum power point tracking, islanding detectionand control of the inverter method. Through the analysis of the above-mentionedproblems, the original method based on improved fuzzy control combined with theclassic PI control method. And verified the effectiveness of the control schemethrough a simulation model.Finally, analyzed the hardware and software of the system based on theTMS320LF2407.
Keywords/Search Tags:solar energy, combined to the grid, the MPPT, islanding, fuzzy/PI
PDF Full Text Request
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