Abstract
With the development of China’s electric power, power electronics devices such as insulated-gate bipolar transistors (IGBTs) have been widely used in the field of high voltages and large currents. However, the currents in these power electronic devices are transient. For example, the uneven currents and internal chip currents overshoot, which may occur when turning on and off, and could have a great impact on the device. In order to study the reliability of these power electronics devices, this paper proposes a miniature printed circuit board (PCB) Rogowski coil that measures the current of these power electronics devices without changing their internal structures, which provides a reference for the subsequent reliability of their designs.
Highlights
With the development of semiconductor technology, a lot of power electronics devices such as insulated-gate bipolar transistors (IGBTs) have been widely applied to high-power inverters, high voltage direct current high voltage direct current (HVDC) transmissions, and so on [1,2,3]
The printed circuit board (PCB) Rogowski coil made in this paper is depicted by the physical map and coil size shown
When the measured current peak value was 300 A, the output waveform of the PCB Rogowski coil sensor and PEM CWT Rogowski coil were basically the same; since the sensitivity of the sensor was 10 mV/A, the internal circuit configuration of the operational amplifier determined that the amplitude of the output signal did not exceed the supply voltage
Summary
With the development of semiconductor technology, a lot of power electronics devices such as IGBTs have been widely applied to high-power inverters, high voltage direct current high voltage direct current (HVDC) transmissions, and so on [1,2,3]. Commercially available current transformers and Rogowski coil current sensors are difficult to mount inside devices due to their large sizes. D. et al proposed a new Rogowski coil with multiple PCB boards stacked to monitor the gate current outside the press-pack IGBT package. Gerber D. et al proposed a new Rogowski coil with multiple PCB boards stacked to monitor the sharing characteristics of the welded IGBT module [10,11,12]. A miniature, thin and low-cost Rogowski coil sensor is proposed for its boss coil based on 6-layer PCB layout in the literature and applied it to the study of the current sharing geometry, without changing the internal structure of the device. A miniature, thin and low-cost Rogowski coil sensor is proposed for its boss geometry, different driving modes is monitored. Simulation and experimental verification of the proposed sensor is carried out
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
