A new design strategy for DC/DC LLC resonant converter: Concept,modeling, and fabrication |
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Authors: | Soheil Khosrogorji Sepehr Soori Hossein Torkaman |
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Affiliation: | Faculty of Electrical Engineering, Shahid Beheshti University, Tehran, Iran, 1658953571 |
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Abstract: | In this paper, a new design procedure for LLC converter has been introduced. In fact, this method is a computer-based design algorithm based on a numerical technique. In the process of designing, the value of the resonant element is obtained by solving the LLC converter fundamental equation. This converter will be controlled by using state feedback, such as output voltage variable. As a matter of fact, in a control system, the change of output voltage (because of load variation) will affect the switching frequency, so the output voltage will be tuned. In the designing process, the fundamental equations of LLC converter are obtained, and the value of the resonant elements is calculated. Also, a comparison analysis is carried out between the proposed and typical methods. The simulation is done to investigate the validity of the proposed method. Moreover, a prototype is manufactured, and the experimental test is done to evaluate its applicability. |
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Keywords: | converter design DC-DC converter LLC series-parallel resonant converter |
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