scholarly journals Calculation of core loss and copper loss in amorphous/nanocrystalline core-based high-frequency transformer

AIP Advances ◽  
2016 ◽  
Vol 6 (5) ◽  
pp. 055927 ◽  
Author(s):  
Xiaojing Liu ◽  
Youhua Wang ◽  
Jianguo Zhu ◽  
Youguang Guo ◽  
Gang Lei ◽  
...  
Keyword(s):  
High Frequency ◽  
Core Loss ◽  
Copper Loss ◽  
High Frequency Transformer

Loss Calculation and Software Design Based on the Combination of Electric Circuit and Electromagnetic Field Solution in High Speed Permanent Magnet Machine

2015 ◽  
Vol 741 ◽  
pp. 521-525
Author(s):  
Xiao Guang Kong ◽  
Li Ping Fan ◽  
Yan Qiu Fu
Keyword(s):  
Electromagnetic Field ◽  
Software Design ◽  
High Frequency ◽  
High Speed ◽  
Core Loss ◽  
Electric Circuit ◽  
Mathematics Model ◽  
Element Analysis ◽  
Copper Loss ◽  
Field Solution

Mathematics model of loss for high speed machine is discussed. Calculation method of core loss and high-frequency additional copper loss of winding based on finite element analysis is introduced. Experiment results of losses are presented. In order to realize calculation and analysis, a method of PM machine by calling ANSYS and MATLAB based on VB of the combination of electric circuit and electromagnetic field solution is presented in this paper. The design and feature analysis of high speed PM machine takes an example to validate the accuracy and advantage.

Alternating-current Copper Loss Reduction in a High-frequency Transformer for Railways Using a Magnetic Tape

2021 ◽  
pp. 1-1
Author(s):  
Kazuhiro Shimura ◽  
Kazuma Kubota ◽  
Mitsuhide Sato ◽  
Ttsutomu Mizuno ◽  
Masayuki Sakurada ◽  
...  
Keyword(s):  
Magnetic Tape ◽  
High Frequency ◽  
Alternating Current ◽  
Loss Reduction ◽  
Copper Loss ◽  
High Frequency Transformer

scholarly journals Optimal design of minimal footprint high frequency transformer

2021 ◽  
Vol 18 (3) ◽  
pp. 303-320
Author(s):  
Jeyapradha Ravichandran Banumathy ◽  
Rajini Veeraraghavalu
Keyword(s):  
High Frequency ◽  
Design Procedure ◽  
Optimization Procedure ◽  
Optimal Choice ◽  
Efficient Design ◽  
Copper Loss ◽  
The Core ◽  
High Frequency Transformer ◽  
Straightforward Method ◽  
Transformer Type

Transformer design procedure may vary essentially in respect of the transformer type and its operating frequency (ranging between 50/60 Hz and a few megahertz). This paper presents a simple and straightforward method based on the optimal choice of core geometry of a high frequency transformer (HFT) used in Solid State Transformer (SST) applications. The core of SST is the HFT which largely influences its size and overall performance. The proposed design procedure for HFT focuses on optimizing the core geometry coefficient (in cm5) with a constraint inflicted on loss density. The core geometry coefficient has direct impact on the regulation and copper loss and the procedure results in a robust overall design with minimal footprint. Also, the procedure intends to bring all the operating parameters like regulation, losses and temperature rise within permissible limits while retaining desired efficiency. Thus an energy-efficient design is achieved with minimal footprint. The optimization procedure is implemented using recently developed Moth-flame Optimization (MFO) algorithm. The results of the MFO algorithm are compared with the wellestablished PSO technique. An experimental prototype is built to validate the findings.

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