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A New Structure of Buck-Boost Z-Source Converter Based on Z-H Converter | ||
| Journal of Operation and Automation in Power Engineering | ||
| مقاله 3، دوره 4، شماره 2، اسفند 2016، صفحه 117-131 اصل مقاله (786.56 K) | ||
| نوع مقاله: Research paper | ||
| نویسندگان | ||
| E. Babaei* ؛ T. Ahmadzadeh | ||
| Faculty of Electrical and Computer Engineering, University of Tabriz, Tabriz, Iran | ||
| چکیده | ||
| In this paper, a new structure for buck-boost Z-source converter based on Z-H topology is proposed. The proposed converter consists of two LC networks similar to the conventional Z-source and Z-H converters. One of the characteristics of the proposed structure is that, without any changing in its’ power circuit, it can be used in different conversions such as dc/dc, dc/ac and ac/ac. This unique characteristic of the proposed structure is similar to matrix converters. To use this structure in different conversions just control system should be changed. Other main advantages of the proposed converter are simpler topology, step-up and step-down capabilities and low ripple in voltage and current waveforms. Due to capabilities of the proposed converter mentioned above, it can be used in applications such as connect renewable energy sources to the grid, speed control of induction machines, electric vehicles and etc. In this paper, a complete analysis of the proposed converter in dc/dc conversion with details and mathematical equations is presented. Moreover, for the proposed topology, the ripple of inductors and capacitors is given. A suitable control method is presented, too. Also, the power losses and efficiency of the proposed converter are calculated. The correctness operation of the proposed converter is reconfirmed by the experimental results. | ||
| کلیدواژه‌ها | ||
| Buck-boost dc/dc converter؛ LC network؛ Shoot-through (ST) state؛ Z-H converter؛ Z-source inverter | ||
| مراجع | ||
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