A New 24-pulse Rectifier Transformer with Delta-extended Connection

2018 International Conference on Advanced Technologies in Energy, Environmental and Electrical Engineering

能源学;生态环境科学;无线电电子学

Wang, Mengxia^1 ; Li, Yong^1 ; An, Bonan^1 ; Luo, Longfu^1 ; Wang, Pengcheng^1 ; Gang, Lin^1

College of Electrical and Information Engineering, Hunan University, Changsha, China^1

关键词: Low Voltage distribution system;    Multi-pulse rectifiers;    Nonlinear load;    Output voltages;    Phase-shifting;    Rectifier systems;    Rectifier transformers;    Secondary windings;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/223/1/012027/pdf
DOI  :  10.1088/1755-1315/223/1/012027

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

The low-voltage distribution system is influenced by ever-increasing harmonics caused by nonlinear loads. A simple and reliable 24-pulse rectifier transformer for high-current and low-voltage is proposed in this paper. The proposed 24-pulse rectifier transformer consists of four secondary windings in which an original delta-extended connection is adopted. First, the existing 24-pulse rectifier system is analyzed. Second, the topology, the phase-shifting principle, the input current and the output voltage of 24-pulse transformer are described. Finally, the simulation results validate the theoretical analysis and the advantages of the new 24-pulse rectifier transformer in multi-pulse rectifier areas.