Periodically Swapping Modulation (PSM) Strategy for Three-Level (TL) DC/DC Converters With Balanced Switch Currents
作者： Dong Liu , Fujin Deng , Qi Zhang , Zhe Chen
关键词:
摘要: The asymmetrical modulation strategy is widely used in various types of three-level (TL) dc/dc converters, while the current imbalance among power switches one important issues. In this paper, a novel periodically swapping (PSM) proposed for balancing switches’ currents TL converters. PSM strategy, driving signals switch pairs are swapped periodically, which guarantees that through kept balanced every two switching periods. Therefore, can effectively improve reliability converter by losses and thermal stresses switches. operation principle performances analyzed detail. Finally, simulation experimental results presented to verify strategy.
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