Title of article
Design and control strategy of solid state transformer using CHB, MMC and 5-L ANPC multilevel converters
Author/Authors
Sotoodehkia ، Mohammad Saber Department of Electrical Engineering - Islamic Azad University, Kish International Branch , Arasteh ، Mohammad Department of Electrical Engineering - University of Science and Culture , Soleymani Mucheh Khorti ، Soodabeh Department of Electrical Engineering - Islamic Azad University, Science and Research Branch , Hosseinpour ، Majid Department of Electrical and Computer Engineering - University of Mohaghegh Ardabili
From page
161
To page
179
Abstract
In this paper, the process of designing and comparing cascaded H-bridge (CHB) converter, modular multilevel converter (MMC), and five-level active neutral-point clamped (5L-ANPC) converter as a solid-state transformer (SST) utilized in the distribution network was investigated. The design was based on 1.7 kV IGBT modules (for CHB and MMC converters) and 3.3 and 4.5 kV IGBT modules (for 5L-ANPC converter). The converters were compared at voltage levels of 6.9, 11, and 20 kV and power levels of 0.5 and 2 MW. As well, when the number of MC voltage levels increases, the complexity of the control system, as well as the control algorithm, increases largely. In order to simplify the control system, a hierarchical control system is designed for these MCs. In the process of designing converters, thermal analysis and selecting smaller parts with lower losses due to enhanced efficiency were considered.
Keywords
Active NPC (ANPC) , Cascaded H , bridge (CHB) , Modular multilevel converter (MMC) efficiency , Modular multilevel converter (MMC) , Solid state transformers (SST) , Control systems
Journal title
International Journal of Nonlinear Analysis and Applications
Journal title
International Journal of Nonlinear Analysis and Applications
Record number
2773509
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