Results 1 to 10 of about 49,792 (309)

Design Requirement and DC Bias Analysis on HVDC Converter Transformer [PDF]

E3S Web of Conferences, 2021
The converter transformer plays a critical role in the high-voltage direct current (HVDC) transmission system, which connects but separates the AC grids and the converter.
Peng Weijian, Liu Qi, Liang Li, Jiang Wenqi, Zhang Zhuoyuan   +4 more
doaj   +1 more source

Capacitive Filter Based HVDC Converter for Reducing the Vibration and Noise of Converter Transformer

IEEE Access, 2022
Harmonic currents generated by converters in the HVDC system flow into the converter transformer. The harmonic current and voltage in the converter transformer will cause electromagnetic vibration of windings and iron core, which result in serious noise ...
Liang Zhao, Longfu Luo, Yong Li, Hao Zhang, Jinwen Xiang   +4 more
doaj   +1 more source

Analytical modeling and calculation of core grounding current in converter transformer

Frontiers in Energy Research, 2023
In recent years, the calculation of the core grounding current of the converter transformer is difficult, low precision, and time-consuming, especially when the core is grounded by multiple points.
Xiu Zhou, Tian Tian, Peng Wu, Yan Luo, Jin Bai, Ninghui He, Xiuguang Li   +6 more
doaj   +1 more source

Research on finite element simulation of converter transformer core under multi-point grounding fault

Energy Reports, 2023
The converter transformer is an electrical equipment with a symmetrical structure. Due to its symmetry, the ground current should be small when the core is grounded at one point.
Xiu Zhou, Tian Tian, Peng Wu, Yan Luo, Jin Bai, Ninghui He, Xiuguang Li, Dezhi Chen, Haonan Bai   +8 more
doaj   +1 more source

Calculation of inlet capacitance for long-duration induction voltage test of single-phase three-winding converter transformers

Energy Reports, 2023
The converter transformer is one of the core equipment in the high-voltage DC (HVDC) transmission project. The capacity of the converter transformer is much larger than that of an ordinary AC transformer, and its main function is to convert the AC system
Shijie Li, Jinzhuang Lv, Jiankun Wang, Jinzhou Xiong, Xinbo Zhang, Xuzhe Li   +5 more
doaj   +1 more source

Operation State Identification Method for Converter Transformers Based on Vibration Detection Technology and Deep Belief Network Optimization Algorithm

Actuators, 2021
The converter transformer is a special power transformer that connects the converter bridge to the AC system in the HVDC transmission system. Due to the special structure of the converter transformer, it is necessary to test its operation state during ...
Yongye Wu, Zhanlong Zhang, Rui Xiao, Peiyu Jiang, Zijian Dong, Jun Deng   +5 more
doaj   +1 more source

A Dual-Transformer-Based Bidirectional DC–DC Converter of Using Blocking Capacitor for Wide ZVS Range

IEEE Access, 2020
In order to improve the efficiency of battery charging and discharging in a wide conversion gain, a dual-transformer-based full bridge converter using a block capacitor was proposed. By adding the blocking capacitor in the primary side of one transformer,
Yanke Liang, Xu Liu, Guokai Xu, Shuaichao Yue   +3 more
doaj   +1 more source

Analysis of Unidirectional Secondary Resonant Single Active Bridge DC–DC Converter

Energies, 2021
A compact and highly efficient unidirectional DC–DC converter is required as a battery charger for electrical vehicles, which will rapidly become widespread in the near future.
Cao Anh Tuan, Takaharu Takeshita
doaj   +1 more source

Transformer Isolated Buck-Boost Converters [PDF]

Renewable Energy and Sustainable Development, 2016
Of the single-switch dc-to-dc converters, those with the buck-boost voltage transfer function offer most potential for transformer coupling, hence isolation, at the kilowatt level. This paper highlights the limitations of the traditional magnetic coupled, buck-boost topology.
openaire   +4 more sources

Converting Epics/Stories into Pseudocode Using Transformers

2023 IEEE 20th India Council International Conference (INDICON), 2023
2023 IEEE ...
Kolhatkar, Gaurav, Madan, Akshit, Kowtal, Nidhi, Roy, Satyajit, Sonawane, Sheetal   +4 more
openaire   +2 more sources