Differential Reconstruction Method for Power Frequency AC Current Measurement Using Rogowski Coil

2016 ◽  
pp. 1-1 ◽  
Author(s):  
Mohamed E. Ibrahim ◽  
Amr M. Abd-elhady
Keyword(s):  
Rogowski Coil ◽  
Current Measurement ◽  
Reconstruction Method ◽  
Power Frequency ◽  
Ac Current

scholarly journals Rogowski Coil for Current Measurement in a Cryogenic Environment

2015 ◽  
Vol 15 (2) ◽  
pp. 77-84 ◽  
Author(s):  
Tao Ma ◽  
Shaotao Dai ◽  
Jingye Zhang ◽  
Lianqi Zhao
Keyword(s):  
Output Voltage ◽  
Rogowski Coil ◽  
Measurement Precision ◽  
Current Measurement ◽  
Current Sensor ◽  
Coil Current ◽  
Large Bandwidth ◽  
Current Sharing ◽  
Primary Current ◽  
Better Than

Abstract A Rogowski coil based sensor for current measurement in a cryogenic environment and results of its application for paralleled high temperature superconducting (HTS) coil current sharing are presented. The current sensor consists of a Rogowski coil and an integrator, where the coil output voltage is proportional to the derivative of primary current and the integrator transfers the differentiation to normal state. The Rogowski coil has promising applicability at cryogenic circumstance because its body is made of low temperature materials. The integrator ensures a large bandwidth with feasible magnitude, which is vital for dynamic current measurement during the quench of the HTS coil. The proposed current sensor is used for current sharing measurement of two paralleled Bi2223 HTS coils, and the experimental results show that the measurement precision is better than 0.5%.

Self-integrated Rogowski coil for low-frequency high current measurement

2010 ◽  
Vol 22 (9) ◽  
pp. 2227-22231 ◽  
Author(s):  
卫兵 Wei Bing ◽  
卿燕玲 Qing Yanling ◽  
关永超 Guan Yongchao ◽  
仇旭 Qiu Xu ◽  
付佳斌 Fu Jiabin ◽  
...  
Keyword(s):  
Low Frequency ◽  
Rogowski Coil ◽  
Current Measurement ◽  
High Current

scholarly journals PCB-Embedded Spiral Pattern Pick-Up Coil Current Sensor for WBG Devices

Energies ◽  
2020 ◽  
Vol 13 (21) ◽  
pp. 5747
Author(s):  
Hwa-Rang Cha ◽  
Kyeong-Mo Kim ◽  
Min-Soo Song ◽  
Rae-Young Kim
Keyword(s):  
Semiconductor Device ◽  
Current Transformer ◽  
Rogowski Coil ◽  
Current Measurement ◽  
Circuit Board ◽  
Current Sensor ◽  
Spiral Pattern ◽  
Measurement Sensitivity ◽  
Coil Current ◽  
Parasitic Inductance

This paper proposes a current sensor for wide bandgap (WBG) devices. The current of a power semiconductor device is mainly measured using a Rogowski coil, an active current transformer, and a coaxial shunt resistor. The Rogowski coil and active current transformer are not suitable for the current measurement of surface mount WBG devices due to their operating principle. The coaxial shunt resistor causes parasitic inductance. Since WBG devices are more sensitive to parasitic inductance than silicon devices, parasitic inductance may affect circuit operation. To overcome these problems, this paper proposes a printed circuit board (PCB)-embedded spiral pattern pick-up coil current measurement for WBG devices. The proposed pick-up coil has high mutual inductance compared to the conventional pick-up coil, so the measurement sensitivity is high. In addition, there is no need for additional processing outside the PCB. Experimental results using a double pulse tester circuit are provided to verify the performance of the proposed current sensor.

Cmos microsystem for ac current measurement with galvanic isolation

2003 ◽  
Vol 3 (6) ◽  
pp. 752-760 ◽  
Author(s):  
V. Frick ◽  
L. Hebrard ◽  
P. Poure ◽  
F. Anstotz ◽  
F. Braun
Keyword(s):  
Current Measurement ◽  
Ac Current
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