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http://dx.doi.org/10.6113/TKPE.2019.24.6.419

Comparative Performance Evaluation of 10kV IGCTs in 3L ANPC and TNPC Converters in PMSG MV Wind Turbines  

Lyngdoh, Amreena Lama (Dept. of Electrical Eng., Chonbuk Nat'l University)
Suh, Yongsug (Dept. of Electrical Eng., Chonbuk Nat'l University)
Park, Byoung-Gun (Korea Electrotechnology Research Institute)
Kim, Jiwon (Korea Electrotechnology Research Institute)
Publication Information
The Transactions of the Korean Institute of Power Electronics / v.24, no.6, 2019 , pp. 419-427 More about this Journal
Abstract
Several multilevel converter topologies have been proposed and compared. The three-level (3L) neutral-point-clamped (NPC) topology is promising and widely accepted. However, this topology suffers from uneven loss distribution among switches due to its fixed switching strategy. The 3L active NPC (ANPC) topology, which exhibits improved loss distribution profile, was proposed to address this disadvantage. The 3L T-NPC topology, a hybrid configuration of 2L and 3L NPC topologies, was introduced to address not only the loss distribution problem but also the reduction in the number of switches. In the present research, the application of these three topologies in PMSG-based medium-voltage wind turbines was investigated. The power devices considered were 10 kV IGCTs. Performance was evaluated in terms of a power loss of 10 kV IGCT for each NPC topology, which is a crucial indicator of thermal behavior, reliability, cost, and lifetime of any converter. The comparison was performed using ABB make 10 kV IGCT 5SHY17L9000 and the simulation tool PLECS.
Keywords
3L ANPC; 10kV IGCT; Loss distribution; TNPC;
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