Multi-pulse current source for highly inductive load

Guo, Benqi; Zhang, Y. M.; Gao, Junxia

doi:10.1109/ppc.2017.8291312

Cited by 1 publication

(3 citation statements)

References 5 publications

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“…As the results in Figure 17 indicate, the proposed method lifts the peak current by 30-50 A, which contributes to stronger magnetic field and more accurate detection in ATEM application. Contrasting the approach with the charging mode by isolated converter introduced in [5], it can be found that the way to adjust the charging voltage and current pulse is more flexible. The inductor current is pumped into the capacitor and charge it to a certain level defined by digital controller.…”

Section: Resultsmentioning

confidence: 99%

“…Contrasting the approach with the charging mode by isolated converter introduced in [5], it can be found that the way to adjust the charging voltage and current pulse is more flexible. The inductor current is pumped into the capacitor and charge it to a certain level defined by digital controller.…”

Section: Resultsmentioning

confidence: 99%

“…In order to achieve a greater detection depth, the transmitting system is required to provide pulse current with higher peak value. In addition, the current pulse should be turned off quickly to acquire a higher detection resolution [5]. However, these key technical issues are not easy to solve for the following two reasons.…”

Section: Introductionmentioning

confidence: 99%

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A field programmable gate array controlled high‐current pulsed source for airborne transient electromagnetic system

Liu

Liao³

et al. 2021

IET Power Electronics

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A high-current pulsed source with high charging efficiency, high stability and low current ripple is proposed for airborne transient electromagnetic method application. The high voltage capacitor bank is employed to provide and store energy for generating current pulses in the inductive load. An N-channel interleaved boost module is designed to replenish the capacitor energy gap so that current pulses can be repeated in a short time. The operation principles of the proposed topology are explained and the theoretical analysis is provided. In addition, a convenient and effective control strategy to raise efficiency of the charging circuit is introduced. The concise closed-loop control method directed at the characteristics of load variations is available for changing the steady operation and control the output current. Logic input and output modules based on field programmable gate array are designed for the controller. A laboratory prototype with the maximum peak current 400 A is built for the load coil of 2.1 mH and 150 mΩ to verify the effectiveness of the proposed topology and control method.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%