The P-Type Module with Virtual DC Links to Increase Levels in Multilevel Inverters
1
Department of Electromobility, Volvo Truck Group Technology, SE- 417 15 Gothenburg, Sweden
2
Department of engineering, Mazandaran University of Science and Technology, Babol 47166-85635, Iran
3
Department of Engineering, Atlas Danesh Co, Ghaemshahr 47658-37449, Iran
4
Department of Electrical Engineering and Automation, Aalto University, 00076 Aalto, Finland
*
Authors to whom correspondence should be addressed.
Electronics 2019, 8(12), 1460; https://doi.org/10.3390/electronics8121460
Received: 11 October 2019 / Revised: 15 November 2019 / Accepted: 20 November 2019 / Published: 2 December 2019
(This article belongs to the Special Issue Industrial Applications of Power Electronics)
There has been an active interest in the evolution of newer multilevel inverter topologies in which the highest operation of DC sources become an important subject. In the paper, a new structure module presented a seventeen levels asymmetrical multilevel inverter by using two unequal DC sources (with the ratio 3:1). The configuration was focused on creating virtual DC links by two chargeable capacitors. The module had a simple inherent charging for capacitors without any additional circuit. The proposed multilevel inverter could produce higher voltage levels by a lower number of components; therefore, it is suitable for a wide range of applications. Also, the cascade connection of the module led to a modular topology with more voltage levels at higher voltages. The capability of the inherent negative voltage was involved. The simulation results obtained in MATLAB/Simulink, as well as the experimental results, verified the proposed topology.
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Keywords:
asymmetric; capacitors; multilevel inverter; power electronics; self-charging; virtual DC links
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MDPI and ACS Style
Samadaei, E.; Kaviani, M.; Iranian, M.; Pouresmaeil, E. The P-Type Module with Virtual DC Links to Increase Levels in Multilevel Inverters. Electronics 2019, 8, 1460.
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