Abstract
The conventional single-phase multilevel current source inverters suffer from the high count of switches for increasing the levels. Therefore, how to generate more levels with reduced-count of switches is attractive. In this paper, a programmable single-phase current source inverter is presented. It can achieve the programmable level output with only five switches. Different from the existing single-phase reduced-count multilevel inverters, it has the advantages of a simple structure and programmable level output. Finally, the simulation and experimental tests are carried out. And, the experimental results verify the effectiveness of the proposed programmable multilevel inverter.
Highlights
In recent years, the renewable energy utilization is developed in a rapid pace, such as wind and solar energy power generation
Compared to the voltage source inverter, it has the advantages of high reliability, long life, the inherent current limiting capability and excellent quality of output waveform [6]
The advantage of this topology is that only one auxiliary power unit is needed, but multiple current sources are required
Summary
Department of Electrical Engineering, Yanshan University, Qinhuangdao 066004, China This work was supported in part by the National Natural Science Foundation of China (51677161, 51777181), Natural Science Foundation of Hebei Province (E2019203563), and the State Key Laboratory of Reliability and Intelligence of Electrical Equipment (EERIKF2018002), Hebei University of Technology.
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