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Research On Control Method Of Load Under The Strong Disturbance Wave Power Of Inverter

Posted on:2016-06-25Degree:MasterType:Thesis
Country:ChinaCandidate:M FanFull Text:PDF
GTID:2272330467491422Subject:Control theory and control engineering
Abstract/Summary:PDF Full Text Request
Since entering the21st century, our country’s economy growing, all kinds ofelectrical technology continuously improved. Family widely use the washingmachines, refrigerators, induction cooker, air conditioning, hair dryer, such asnonlinear loads, ideally, inverter is not influenced by load, but the actual inverter has acertain output impedance, thus causes the output voltage waveform distortion.Therefore, measures must be taken to restrain, in the case of unbalanced load toensure that the output voltage balance.Based on the wave power generation system as the research object, because thewaves power generation systems are mostly used in island, load power for the people,so the output voltage caused by household electrical appliances and a relatively shortcircuit happens often, thus affecting the quality of the output voltage. In this paper,combined with the characteristics of wave power control system, based on fuzzy PIDcontrol strategy is proposed. When strong interference in load, in a timely manner forPID parameters setting, improve the response time and the steady state precision ofthe system, to ensure the stability of the output voltage.Article through to the traditional PID control and fuzzy PID control systemsimulation waveform comparison, to determine the fuzzy PID control can effectivelyinhibit busbar voltage mutation, improve the quality of voltage, applied in the wavespower generation system is feasible and effective...
Keywords/Search Tags:Three-phase inverter, Repetitive control, unbalanced load, wave powegeneration, MATLAB
PDF Full Text Request
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