1. Jiangsu Key Laboratory of New Energy Generation and Power Conversion Nanjing University of Aeronautics & Astronautics Nanjing 210016 China; 2. Institute of Telecommunication Satellite, CAST Beijing 100094 China
Abstract：In recent years, the Z-source inverter and the quasi-Z-source inverter are proposed to solve the limitations of the traditional voltage source inverter, which attract a great deal of attention. However, the shortcomings of those two topologies limit their further developments. Here a new type of tapped inductor quasi-Z-source inverter is researched to achieve higher boost ability and smaller capacitor voltage stress. This paper first proposes the generalized DC side small-signal model by using the state-space averaging method, and analyses the impact of the vary in boost network parameters and shoot-through zero state on the system based on the transfer function. The closed-loop regulator of the DC bus voltage is also designed to improve the dynamic performance of the system. Finally, simulations and experiments are carried out to validate the above characteristics.
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2014, Vol. 29 
