The Design Of Inverter's Output Filter And Research On The Inductor

With the rapid development of the new energy, distributed power systems, and the wide use of UPS, as their core technology of the inverter being more and more attention. But inverter has its own inherent characteristics, and the output voltage contains much more high secondary harmonic component. How to make the inverter output voltage content less harmonic, is becoming a hot topic. In addition to optimize the inverter from its principle, and install the output LC filter device. So it is necessary to research the output terminal filter of the inverter. In LC filter, inductance is one of the indispensable and important components, and its performance has the direct influence of the filtering effect. So in research the LC filter, analysis of filtering inductances, it is a very important issue.This dissertation first discusses the research of the inverter output terminal filter,LC filter status of the research and the difficulties. The second chapter presents the principle of the inverter classification, application scope. The third chapter of presents the single-phase and three-phase inverter carried on the detailed harmonic analysis, and simulated with the Matlab. The fourth chapter proposed based on bart transfer function of filter design method, and the simulation software simulation, proof this filter design method is feasible. The fifth chapter based on the analysis of magnetic materials, design a loop inductance coil, and through analysing get some paramenter .