Hybrid Multilevel Converters: Topologies, Evolutions and Verifications

Jianzhong Zhang, Shuai Xu, Zakiud Din and Xing Hu
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Jianzhong Zhang: School of Electrical Engineering, Southeast University, Nanjing 210096, China
Shuai Xu: School of Electrical Engineering and Electronic Information, Xihua University, Chengdu 210024, China
Zakiud Din: School of Electrical Engineering, Southeast University, Nanjing 210096, China
Xing Hu: School of Electrical Engineering, Southeast University, Nanjing 210096, China

Energies, 2019, vol. 12, issue 4, 1-29

Abstract: Multilevel converters have good potential in high power and high voltage applications due to their advantages of reduced voltage or current stress on power devices. In recent years, hybrid multilevel converter (HMC) have attracted increasing attention since less equipment is required. In this paper, the topologies and evolutions of HMCs are presented, where five topology derivation ways are given by using basic cells in series-parallel/parallel-series. Some general topologies or structures that are used to generate higher levels are also deducted. Then many existing HMCs can be derived, and new topologies of the HMC might be inspired. The capabilities of neutral point and FC voltage balancing control are investigated. The performance of the selected FC-based HMCs is analyzed. Finally, the verifications of operation principle and control strategies for the derived HMCs are carried out.

Keywords: evolutions; hybrid multilevel converter; modulation; multilevel converters; voltage balancing control (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2019
References: View complete reference list from CitEc
Citations: View citations in EconPapers (9)

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