In this paper, a new type of single-stage boost Transquasi-Z-source inverter topology is presented. The basic structure and working principle of the inverter are analyzed and its voltage gain is deduced. The model of the Trans-quasi-Z-source network is established by using Laplace transform. The dynamic characteristics of the system are analyzed, and the switching loss is explored by comparing the different shoot-through injection methods. In order to verify the dynamic boost characteristics, the Matlab/Simulink simulation is performed. Finally, the hardware circuit is built on the basis of theoretical analysis and simulation verification. The experimental results verify the feasibility and stability of the circuit. Index Terms-Dynamic boost characteristics, single-stage boost, switching loss, trans-quasi-Z-source inverter.. He has published over 90 papers, wherein includes over 30 papers in IEEE Transactions and IEEE conference proceedings, and held 14 patents, and has applied for 2 invention patents that in the examination stage. His research interests include Z-source converter and its applications, utility applications of power electronics such as active filters and FACTs devices, renewable resources generation. Dr. Fang is a senior member of China Electrotechnical Society Power Electronics Society and an invited reviewer of

To solve the disadvantages of the traditional Z-source inverter (ZSI), this paper investigates a series-type switched-inductor Z-source inverter (SSI-ZSI) topology. It not only preserves the advantages of the traditional ZSI, but also improves the voltage gain. On the condition of the same voltage gain, the capacitor voltage stress is reduced, the soft start characteristic can be achieved and the inverter can be immune to the damage of the inrush current. The circuit structure and operating principle are analyzed in detail; the simulation model and the experimental platform are built. The simulation and experimental results verify the rationality and superiority of the circuit topology.

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