Evaluation and Comprehensive Comparison of H-Bridge-Based Bidirectional Rectifier and Unidirectional Rectifiers

Electronics

Mingjun Si¹  Hong Cheng¹  Cong Wang²  Shiyan Wu³  Jiaqing Deng³ 

[1] Information Engineering, China University of Mining &Technology, Beijing 100083, China;;School of Mechanical Electronic &

关键词: unidirectional rectifier;    bidirectional rectifier;    comparison;    power losses;    efficiency;    cost;    current stress;    thd analysis;   

DOI  :  10.3390/electronics9020309

来源: DOAJ

【 摘 要 】

This paper presents an evaluation and comprehensive comparison for the topologies which are applied to the front stage of transformer-less cascaded multilevel converter (TCMC). The topologies investigated are targeted at the bidirectional cascaded H-bridge rectifier and three unidirectional rectifiers, including the diode H-bridge cascaded boost rectifier, cascaded bridgeless rectifier and cascaded VIENNA rectifier. First, the operation principles of the unidirectional rectifiers are discussed. Then the performances of these topologies such as power losses, efficiency, device current stress, cost, and total harmonic distortions are analyzed and evaluated respectively. Finally, advantages and disadvantages for each topology are discussed and highlighted. The evaluation and comparison methods presented in this paper and their results are feasible and effective for selecting the appropriate topology in practical applications under different operating conditions.

【 授权许可】

Unknown