A novel symmetric/asymmetric multilevel current source inverter topology with lower number of components and lowest power rating of switches. Issue 8 (17th November 2017)

• Record Type: Journal Article
• Authors: Jannati Oskuee, Mohammad Reza; Karimi, Masoumeh; Najafi Ravadanegh, Sajad; Gharehpetian, Gevork B.
• Is Part Of: International journal of ambient energy. Volume 38:Issue 8(2017)
• Page Start: 858
• Page End: 864
• Publication Date: 2017-11-17
• Subjects: Power conversion -- multilevel current source inverters -- symmetric inverter -- asymmetric inverter -- reduced number of circuit components -- total semiconductor device power; Power resources -- Periodicals; Renewable energy sources -- Periodicals; 621.04205
• DOI: 10.1080/01430750.2016.1222957
• Languages: English
• ISSNs: 0143-0750

Abstract

ABSTRACT: A novel multilevel current source inverter (MCSI) configuration is introduced in this paper. The ability of handling with asymmetrical DC sources is one of the substantial advantages of the proposed inverter. In asymmetric mode, by appropriate selection of DC sources magnitude, a considerable increase can be obtained in the number of output levels without any manipulation on inverters' hardware. In MCSIs, the number of required circuit devices is very important because the overall costs, circuit size, reliability and control complexity are dependent on them directly. The proposed inverter can generate all desired current levels using a lower number of elements. Besides, it is known that reduction of number of switches from conventional inverters imposes an undesired increase in total semiconductor device power (SDP). But, the total SDP of the proposed inverter is kept equal to conventional inverter. To validate the superiority of the proposed inverter, a full comparison is provided. Also, the computer simulation and experimental results are presented.