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ADVANCED TOPICS IN ELECTRICAL ENGINEERING – ATEE 2017

Papers Proceedings »

New Hybrid Quasi Z-source Inverter Based on Diode- Capacitor Basic unit

One of the main problems of the Z-source inverters (ZSI) is capability of obtaining high boost factor with minimum number of used active elements. In order to receive this aim, a new hybrid Quasi Z-source inverter (HQZSI) with the capability of obtaining desired boost factor is proposed. The proposed inverter is the combination of diode basic unit and capacitor basic unit as a new basic unit. The one-cell HQZSI is completely analysed and the equations of the diode voltage stress, capacitor voltage stress and boost factor are obtained. In addition, it is possible to extend the proposed inverter by increasing the number of used basic units. Two-cell HQZSI and the developed HQZSI that are also analyzed and their related equations are also obtained. Finally, the accuracy performance of the proposed inverter and presented analyses is reconfirmed by using the simulation results on the two-cell HQZSI in EMTDC/PSCAD software.

Author(s):

Sara LAALI    
Azad University-North Tehran Branch
Iran

Ebrahim BABAEI    
University of Tabriz
Iran

 

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