Study of Double-Input Bidirectional DC Converter for Hybrid Energy Sources

• Main Authors: LIN, CHEN-XIAN, 林宸賢
• Other Authors: Huang,Sy-Ruen
• Format: Others
• Language: zh-TW
• Published: 2019
• Online Access: http://ndltd.ncl.edu.tw/handle/d48868

碩士 === 逢甲大學 === 電機工程學系 === 107 === A novel double-input converter with bidirectional power flow capability is proposed in this paper. With different switching methods, two different voltages of the voltage source can be combined with the double-input bidirectional converter, to achieve individual or series synchronous power to the load. In this paper, the converter circuit architecture, switching mode and working principle are introduced. The compensator is designed by the charge/discharge of voltage relationship type and the transfer function. The output voltage and input current are controlled with the command value of voltage and current. The proposed circuit and control are verified by the simulation presented in this paper and the 350W converter. The dual-input bidirectional DC power converter developed in this paper has the advantages of high power density, easy operation, less passive components and simple design. Experimental results verify that the converter can operate in the forward or reverse direction. Conversion efficiency up to 88%.