Design of a high accuracy wideband current sensing system by tunneling magnetoresistive device with digital parametric equalizer
Wideband current sensors play a crucial role in the future power grid, especially with the increasing integration of renewable energy and nonlinear loads. This research developed a sensor configuration using tunneling magnetoresistive (TMR) devices for wideband current measurement. A parametric equa...
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| Format: | Article |
| Language: | English |
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KeAi Communications Co., Ltd.
2025-01-01
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| Series: | Sensors International |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2666351124000330 |
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| author | Sen Qian Hui Huang Fuchao Li Qiang Shi Xiaohui Yan Jinghong Guo |
| author_facet | Sen Qian Hui Huang Fuchao Li Qiang Shi Xiaohui Yan Jinghong Guo |
| author_sort | Sen Qian |
| collection | DOAJ |
| description | Wideband current sensors play a crucial role in the future power grid, especially with the increasing integration of renewable energy and nonlinear loads. This research developed a sensor configuration using tunneling magnetoresistive (TMR) devices for wideband current measurement. A parametric equalizer was also introduced to compensate for minor fluctuations in the TMR sensor's frequency response, thereby reducing wideband measurement errors. A calibration setup was created to test the frequency-dependent accuracy of the compensated TMR sensor. Results showed that relative errors in wideband measurements were reduced to 2 % after compensation, compared to 6 % of the uncompensated results, with power frequency measurement errors falling below 1 %. Furthermore, the designed TMR sensors were deployed in a 0.4 kV household district, demonstrating their practical application in diagnosing the spectral content of the load current. The analysis revealed a range of wideband components, including low-frequency components below 50 Hz, intermediate harmonics, and supraharmonics. |
| format | Article |
| id | doaj-art-bf3fe2021d6948cba92389b4861458c0 |
| institution | Kabale University |
| issn | 2666-3511 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | KeAi Communications Co., Ltd. |
| record_format | Article |
| series | Sensors International |
| spelling | doaj-art-bf3fe2021d6948cba92389b4861458c02024-12-06T05:14:42ZengKeAi Communications Co., Ltd.Sensors International2666-35112025-01-016100311Design of a high accuracy wideband current sensing system by tunneling magnetoresistive device with digital parametric equalizerSen Qian0Hui Huang1Fuchao Li2Qiang Shi3Xiaohui Yan4Jinghong Guo5State Grid Smart Grid Research Institute Co. Ltd., Beijing, 102209, China; Xi'an Jiaotong University, Xi'an, 102209, China; Corresponding author. State Grid Smart Grid Research Institute Co. Ltd., Beijing, 102209, China.State Grid Smart Grid Research Institute Co. Ltd., Beijing, 102209, China; Xi'an Jiaotong University, Xi'an, 102209, ChinaState Grid Sichuan Electric Power Company, Chengdu, 610041, ChinaState Grid Sichuan Electric Power Company, Chengdu, 610041, ChinaXi'an Jiaotong University, Xi'an, 102209, ChinaState Grid Smart Grid Research Institute Co. Ltd., Beijing, 102209, China; Xi'an Jiaotong University, Xi'an, 102209, ChinaWideband current sensors play a crucial role in the future power grid, especially with the increasing integration of renewable energy and nonlinear loads. This research developed a sensor configuration using tunneling magnetoresistive (TMR) devices for wideband current measurement. A parametric equalizer was also introduced to compensate for minor fluctuations in the TMR sensor's frequency response, thereby reducing wideband measurement errors. A calibration setup was created to test the frequency-dependent accuracy of the compensated TMR sensor. Results showed that relative errors in wideband measurements were reduced to 2 % after compensation, compared to 6 % of the uncompensated results, with power frequency measurement errors falling below 1 %. Furthermore, the designed TMR sensors were deployed in a 0.4 kV household district, demonstrating their practical application in diagnosing the spectral content of the load current. The analysis revealed a range of wideband components, including low-frequency components below 50 Hz, intermediate harmonics, and supraharmonics.http://www.sciencedirect.com/science/article/pii/S2666351124000330Sensor systemsCurrent sensorMagnetic sensorHarmonicsTunneling magnetoresistance (TMR) |
| spellingShingle | Sen Qian Hui Huang Fuchao Li Qiang Shi Xiaohui Yan Jinghong Guo Design of a high accuracy wideband current sensing system by tunneling magnetoresistive device with digital parametric equalizer Sensors International Sensor systems Current sensor Magnetic sensor Harmonics Tunneling magnetoresistance (TMR) |
| title | Design of a high accuracy wideband current sensing system by tunneling magnetoresistive device with digital parametric equalizer |
| title_full | Design of a high accuracy wideband current sensing system by tunneling magnetoresistive device with digital parametric equalizer |
| title_fullStr | Design of a high accuracy wideband current sensing system by tunneling magnetoresistive device with digital parametric equalizer |
| title_full_unstemmed | Design of a high accuracy wideband current sensing system by tunneling magnetoresistive device with digital parametric equalizer |
| title_short | Design of a high accuracy wideband current sensing system by tunneling magnetoresistive device with digital parametric equalizer |
| title_sort | design of a high accuracy wideband current sensing system by tunneling magnetoresistive device with digital parametric equalizer |
| topic | Sensor systems Current sensor Magnetic sensor Harmonics Tunneling magnetoresistance (TMR) |
| url | http://www.sciencedirect.com/science/article/pii/S2666351124000330 |
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