scholarly journals Research on a current calculation method and characteristics of pole-to-ground faults in true bipolar MMC-HVDC grids considering line coupling✰

2021 ◽  
Vol 192 ◽  
pp. 106985
Author(s):  
Botong Li ◽  
Wenxin Wang ◽  
Bin Li ◽  
Yichao Liu ◽  
Weijie Wen ◽  
...  
Keyword(s):  
Calculation Method ◽  
Ground Faults ◽  
Current Calculation ◽  
Line Coupling ◽  
A Current

Dark-Current Calculation Method of Area CCD Based on Bad Pixels Detection in the Scene

2012 ◽  
Vol 32 (4) ◽  
pp. 0404002
Author(s):  
程宣 Cheng Xuan ◽  
赵慧洁 Zhao Huijie
Keyword(s):  
Calculation Method ◽  
Dark Current ◽  
Current Calculation

A Pole-to-Pole Short-Circuit Fault Current Calculation Method for DC Grids

2017 ◽  
Vol 32 (6) ◽  
pp. 4943-4953 ◽  
Author(s):  
Chengyu Li ◽  
Chengyong Zhao ◽  
Jianzhong Xu ◽  
Yuke Ji ◽  
Fan Zhang ◽  
...  
Keyword(s):  
Calculation Method ◽  
Short Circuit ◽  
Fault Current ◽  
Current Calculation ◽  
Short Circuit Fault

The Enhanced DC Fault Current Calculation Method of MMC-HVDC Grid With FCLs

2019 ◽  
Vol 7 (3) ◽  
pp. 1758-1767 ◽  
Author(s):  
Jianzhong Xu ◽  
Sicheng Zhu ◽  
Chengyu Li ◽  
Chengyong Zhao
Keyword(s):  
Calculation Method ◽  
Fault Current ◽  
Dc Fault ◽  
Current Calculation

scholarly journals Multi-Field Collaborative of Oil-Immersed Transformer for Distributed Energy Resources Temperature Rise Considering the Influence of Heat Transfer Oil

2021 ◽  
Vol 9 ◽  
Author(s):  
Kun Huang ◽  
Hua Li ◽  
Wei Wang ◽  
Lifeng Zhang ◽  
Anhui Feng ◽  
...  
Keyword(s):  
Temperature Field ◽  
Temperature Rise ◽  
Calculation Method ◽  
Energy Resources ◽  
Distributed Energy Resources ◽  
Correction Coefficient ◽  
Distributed Energy ◽  
Insulating Oil ◽  
Temperature Field Model ◽  
Current Calculation

The current calculation method of fluid–structure interaction (FSI) has a defect for oilimmersed transformers for distributed energy resources (DERs). In order to solve this problem, a calculation method is proposed for the temperature rise of oil-immersed transformers in this article. The vibration of insulating oil is considered in this method. Different from the temperature field model established by FSI, the effect of insulating oil vibration on the temperature field is considered. The structure field is introduced to establish the insulating oil vibration model. The temperature field correction coefficient is introduced by coupling the insulating oil vibration and the natural convection of the insulating oil. The result shows that compared with FSI, the results of the calculation method in this study are consistent with the experiment, and the temperature field distribution in the oil-immersed transformer can be calculated more accurately.

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