High-Bandwidth Shielded Rogowski Coil Current Sensor for SiC MOSFET Power Module

Zhang, Wen; Wang, Fred; Holzinger, B.

doi:10.1109/apec42165.2021.9487370

Cited by 6 publications

(3 citation statements)

References 11 publications

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“…As a result of these issues, the research community has moved towards custom current sensors. These custom designs employ different measurement principles and achieve high measurement bandwidth at varying maximum measured currents [10][11][12][16][17][18]. While this work focuses on four particular commercially available current sensors, its methodology can be likewise applied to custom current sensors.…”

Section: Introductionmentioning

confidence: 99%

“…Still, the approach utilized in this study is based on the time-domain performance of the sensor, thus limiting the assessment of their non-linear characteristics. Even for custom-made current sensors, their evaluation is usually performed by only assessing and improving a specific characteristic, for example, the bandwidth, the insertion inductance, noise sensitivity, and so on, without investigating the sensor's performance at both small-signal and high-current conditions [29][30][31][32]. Besides, custom-made current sensors are usually costly and their availability is limited.…”

Section: Introductionmentioning

confidence: 99%

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On performance evaluation of high‐power, high‐bandwidth current measurement technologies for SiC switching devices

Philipps,

Peftitsis

2024

IET Power Electronics

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Silicon carbide (SiC) power metal‐oxide‐semiconductor field‐effect transistors (MOSFETs) switch at an unprecedented speed, even at high currents. For accurate dynamic characterization, current sensors must measure high currents at a high bandwidth. Moreover, at high switching speeds, parasitic impedances in the commutation loop become critical. To ensure high‐accuracy measurements, the current sensor insertion impedance must be minimal. Here, a two‐step current sensor evaluation method is proposed. This method serves the characterization and suitability assessment of high‐power, high‐bandwidth current sensors for fast‐switching applications using SiC power MOSFETs. Conducting a small‐ and a large‐signal transmission behaviour analysis separately results in holistic information about the current sensor behaviour in both time and frequency domain. The proposed method is validated using four commercially available current sensors that are widely used for SiC power MOSFET characterization. The work concludes transferring the knowledge derived in the conducted experiments to a practical, application‐oriented sensor selection guide.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

On performance evaluation of high‐power, high‐bandwidth current measurement technologies for SiC switching devices

Philipps,

Peftitsis

2024

IET Power Electronics

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“…Looking at the literature, some slightly relevant works can be found. For instance, [9] deals with the evaluation of distorted signals by Rogowski coils and [10] studies new solutions to extend the bandwidth of these devices. Nevertheless, in [9] neither the effects of temperature nor those of humidity are addressed.…”

Section: Introductionmentioning

confidence: 99%

Combined Effect of Temperature and Humidity on Distorted Currents Measured by Rogowski Coils

Costa

Mingotti

Peretto

et al. 2022

2022 20th International Conference on Harmonics &Amp; Quality of Power (ICHQP)

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The necessity of accelerating towards carbon neutrality has been further pushed in recent times. Therefore, with the aim of developing smart grids, new Intelligent Electronic Devices (IEDs) are being widely installed. In this regard, Low Power Current Transformers (LPCTs) are replacing traditional inductive current transformers (CTs). Among these, Rogowski coils feature high linearity, reduced dimensions, and wide bandwidth in comparison to CTs. Hence, this work presents a study on a particular type of LPCT, the Rogowski coil, which is extensively used nowadays. In detail, temperature and humidity are simultaneously applied to three commercial Rogowski coils when measuring off-nominal, hence distorted, currents. The LPCTs performances are evaluated in terms of power quality indexes, Total Harmonic Distortion (THD) and single harmonic evaluation. From the results, THD is not significantly affected by the combined temperature/humidity presence. However, a deep analysis on the single harmonic demonstrated how they are strongly correlated to such influence quantities. It is interesting to highlight that each of the three devices under test present different behaviors. It is then crucial to in deep the investigation on the influence quantities affecting LPCTs. Furthermore, International Standards should include new details and test procedures to assess the effect on the LPCTs accuracy due to such quantities.

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Design Guidelines for Shield-Less PCB-Based Rogowski Coil Sensors With Passive Offset Compensation for Switching Current Measurement

Sirat,

Niakan,

Gafford

et al. 2023

2023 IEEE Energy Conversion Congress and Exposition (ECCE)

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High-Bandwidth Shielded Rogowski Coil Current Sensor for SiC MOSFET Power Module

Cited by 6 publications

References 11 publications

On performance evaluation of high‐power, high‐bandwidth current measurement technologies for SiC switching devices

On performance evaluation of high‐power, high‐bandwidth current measurement technologies for SiC switching devices

Combined Effect of Temperature and Humidity on Distorted Currents Measured by Rogowski Coils

Design Guidelines for Shield-Less PCB-Based Rogowski Coil Sensors With Passive Offset Compensation for Switching Current Measurement

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