Modified Dual-Buck Inverter Based on Resonant Link

作者：Chen, Rong^*; Zhang, Jia-Sheng; Liu, Wei

来源：Journal of Power Electronics, 2015, 15(6): 1421-1428.

DOI：10.6113/JPE.2015.15.6.1421

• Dual-buck inverter
• Pulse density modulation
• Quasi-resonant link
• Three-level hysteresis controller

The efficiency and reliability of the dual-buck inverter (DBI) were greatly improved by eliminating the shoot-through problem and optimally designing the freewheeling diode. The traditional DBI suffers from large harmonic components with low output voltage and large capacity output filter inductor. To overcome the aforementioned disadvantages, a modified DBI (MBDI) was proposed by adopting a quasi-resonant link and pulse density modulation (PDM). This paper first introduces the working principle of the MBDI and PDM, and then the selection principle of system parameters is presented. Finally, a mathematical model of the MBDIis built, and an experiment prototype is set up. Simulation and experimental results verify the correctness of the theoretical analysis and the feasibility of the scheme.

• 出版日期2015-11
• 单位中国石油大学（华东）