Wide Bandwidth Rogowski Current Transducers

Ray, W.F.; Davis, R. M.

doi:10.1080/09398368.1993.11463312

Cited by 45 publications

(29 citation statements)

References 1 publication

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“…Quantitative measurements of the currents and charge associated with the streamers have been also carried out. Currents at both anode and cathode sides were measured by using a Rogowski coil specially designed to operate as a self-integrator circuit [26,27]. The main electrical characteristics of the coil are listed below.…”

Section: Measurements Proceduresmentioning

confidence: 99%

Study of the Development of Positive Streamers Along an Ice Surface

Ndiaye

Farzaneh

Fofana

2007

IEEE Trans. Dielect. Electr. Insul.

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This paper presents the results of fundamental investigations on the inception and propagation of corona discharge on an ice surface stressed with a standard lightning impulse voltage. High-speed photography and photomultiplier techniques were used to observe and record the propagation of the streamers. The effects of several experimental parameters such as freezing water conductivity and HV rod electrode radius on the streamer inception parameters were investigated. Moreover, time to first streamer, inception voltage and corresponding field, as well as streamer propagation velocity and charge deposited by a streamer on ice surface were measured. The results are discussed and emphases are laid on the main factors influencing the development of positive streamers on ice surface.Index Terms -Outdoor insulation, atmospheric icing, ice surface, high-speed camera, streamer inception, streamer propagation velocity, surface charge, flashover.

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Section: Measurements Proceduresmentioning

confidence: 99%

Study of the Development of Positive Streamers Along an Ice Surface

Ndiaye

Farzaneh

Fofana

2007

IEEE Trans. Dielect. Electr. Insul.

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“…The DC component of the output signal has to be filtered using a high pass filter, because the integration constant is unknown. [5], [6] …”

Section: ∮ •mentioning

confidence: 99%

Novel highly integrated current measurement method for drive inverters

Langmaack

Tareilus

Henke

2016

2016 IEEE Applied Power Electronics Conference and Exposition (APEC)

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Measuring the load current of drive inverters is still inevitable for a precise current control. In common industrial and automotive inverters hall effect based current sensors are widely used.[1] The presented novel current measurement method is based on an inductive current sensor like a Rogowski coil. This can be fabricated much smaller and cheaper than hall based current sensors and can be integrated into drive inverter systems easily. Unlike u evaluation electronic for Rogowski coils, AC and DC components of the load current can be measured using a special evaluation scheme. The arrangement of the sensors also allows them to be used for fast short-circuit detection and di/dt me that some synergies with the gate drive circuitry can be used to create a more compact and reliable system.

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“…The literature [14,15] points out that in a high-frequency state, the bandwidth of the coil is affected by the terminal impedance. When the current through the coil is in a centrally symmetrical position, the transfer function of the coil is [16,17,18] V0e=11+jωL0Zt−ω2L0C0=1s2L0C0+sL0Zt+1 where V 0 is the terminal impedance voltage (V), Z t is the terminal impedance (Ω), L 0 is the coil inductance (H), C 0 is the coil equivalent capacitance (F) and C0=4C/π2.…”

Section: Pcb Rogowski Coil Sensormentioning

confidence: 99%

Research on Small Square PCB Rogowski Coil Measuring Transient Current in the Power Electronics Devices

Jiao

Zhang

Zhao

et al. 2019

Sensors

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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.

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Wide Bandwidth Rogowski Current Transducers

Cited by 45 publications

References 1 publication

Study of the Development of Positive Streamers Along an Ice Surface

Study of the Development of Positive Streamers Along an Ice Surface

Novel highly integrated current measurement method for drive inverters

Research on Small Square PCB Rogowski Coil Measuring Transient Current in the Power Electronics Devices

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