Imbalanced Current Compensation Method for Scott Transformer based 3-phase System

2021 ◽  
Vol 70 (12) ◽  
pp. 1879-1885
Author(s):  
Shengli Song ◽  
Joungjin Seo ◽  
Hanju Cha
Keyword(s):  
Compensation Method ◽  
Phase System ◽  
Current Compensation

Ultra-High Resistance Measurement Based on Offset Current Compensation

2013 ◽  
Vol 373-375 ◽  
pp. 856-860
Author(s):  
Xiao Jun Wang ◽  
Yong Jie Zhao ◽  
Jian Xue
Keyword(s):  
High Resistance ◽  
Current Measurement ◽  
Compensation Method ◽  
Measurement Process ◽  
Resistance Measurement ◽  
Time Varying ◽  
Current Compensation ◽  
Approximate Zero ◽  
On Line ◽  
Measurement Algorithm

An on-line offset current compensation method is proposed to improve ultra-high resistance (UHR) measurement more accurately and reliably. Iterative compensation algorithm is firstly adopted to generate compensation current by adjusting the compensation DAC to decrease the offset current to approximate zero, and then on-line offset current measurement algorithm is employed to ensure the time-varying offset current is always in an appropriate range. This algorithm can maintain a continuous unsaturated measurement process. Experiment results show that the uncertainty (k=2) is 1.4% for 1014Ω and 5.5% for 1015Ω under ±1000V based on the offset current compensation method proposed, which has been successfully implemented in a commercial UHR meter.

scholarly journals DC Offset Current Compensation Method of Transformeless Fuel Cell/PV PCS

2013 ◽  
Vol 33 (6) ◽  
pp. 92-97
Author(s):  
Bong-Hee Park ◽  
Seung-Min Kim ◽  
Ju-Yeop Choi ◽  
Ick Choy ◽  
Sang-Chul Lee ◽  
...  
Keyword(s):  
Fuel Cell ◽  
Compensation Method ◽  
Current Compensation ◽  
Dc Offset
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