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Information Journal Paper

Title

DUAL Z-SOURCE NETWORK DUAL-INPUT DUAL-OUTPUT INVERTER

Pages

  205-213

Keywords

SPACE VECTOR PULSE WIDTH MODULATION (SVPWM) 

Abstract

 This paper presents a modified nine switch inverter with two inputs and two Zsource networks. This inverter has two DC inputs and two AC outputs. Input DC voltages can be boosted to the required level. Amplitude, frequency and phase of AC output voltages can be controlled, independently. The proposed converter can be used in applications with two unregulated DC sources, which require feeding two independent loads. Compared to the conventional structure, the proposed converter requires reduced number of semiconductor switches hence improved converter reliability and less volume. While the authors have already presented a similar inverter (single Z-SOURCE NETWORK dual-input dual-output inverter) with the above features, new inverter has some differences in the topology, control strategy and operation. In this paper, a new control strategy of space vector modulation for the new inverter is proposed. Also a new switching method utilizing carrier-based modulation concept is presented for both dual (proposed) and single Z-SOURCE NETWORK dual-input dual-output inverters. Performance of the proposed inverter is verified by simulation and experimental results.

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