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A reduced switch cascaded transformer multi level inverter

Ouni, S ; Sharif University of Technology | 2015

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  1. Type of Document: Article
  2. DOI: 10.1109/EEEIC.2015.7165303
  3. Publisher: Institute of Electrical and Electronics Engineers Inc , 2015
  4. Abstract:
  5. In this paper, a novel reduced switch cascaded transformer multilevel inverter is proposed. In this structure, a new structure is replaced with conventional H-bridge inverter. It consists of four high frequency switches, two line frequency switches, and two transformers which can be assembled in one core with a specific winding connection. This topology can produce 5 or 7 voltage levels depending on transformers turns ratio. The simplicity and modularity are its advantages compared to the existing structures. Beside these advantages, due to its similarity with H-Bridge converter, it is possible to use a modified technique based on conventional phase shift pulse width modulation to generate switching pulses. Finally, the proposed inverter is simulated in Simulink. The results show the effectiveness of the proposed structure with the aforementioned advantages
  6. Keywords:
  7. Cascaded transformer multi-level Converter ; Phase Shifted pulse width modulation ; Reduced switch inverter ; Bridge circuits ; Counting circuits ; Electric rectifiers ; Modulation ; Phase shift ; Phase shifters ; Pulse generators ; Pulse width modulation ; Voltage control ; Cascaded transformers ; Conventional phase shift ; H-bridge inverters ; High-frequency switches ; Multilevel converter ; Multilevel inverter ; Phase shifted pulse ; Reduced switch ; Electric inverters
  8. Source: 2015 IEEE 15th International Conference on Environment and Electrical Engineering, EEEIC 2015 - Conference Proceedings, 10 June 2015 through 13 June 2015 ; 2015 , Pages 1013-1018 ; 9781479979936 (ISBN)
  9. URL: http://ieeexplore.ieee.org/document/7165303