Xia Du;Liyang Du;Yuxiang Chen;Andrea Stratta;Homer Alan Mantooth
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引用次数: 0
Abstract
The rapid evolution of wide bandgap devices has posed significant challenges in current sensor design concerning bandwidth, compact size, and intricate integrator design. This article presents a high-bandwidth Ω-shaped current sensor, consisting of an Ω-shaped copper tube, Rogowski coil and an external integrator, to achieve precise switching current measurement. The designed structure allows easy integration into various current paths. And a multiobjective optimization based on a genetic algorithm and a finite element method is developed for the comprehensive design of the Rogowski coil. Subsequently, three optimized solutions of coil geometry with bandwidth and sensitivity as optimization objectives are selected for comparison. Moreover, an external differential integrator and its associated design guide are introduced. Finally, comprehensive double pulse tests are performed under 800 V/70 A conditions. The test results of the three distinct coils validate the effectiveness of the proposed automated optimization methodology and external integrator design. The Ω-shaped current sensor consistently exhibits a faster response and maintains over 10 mV/A sensitivity compared with a 30-MHz commercial Rogowski coil.
期刊介绍：
The IEEE Transactions on Power Electronics journal covers all issues of widespread or generic interest to engineers who work in the field of power electronics. The Journal editors will enforce standards and a review policy equivalent to the IEEE Transactions, and only papers of high technical quality will be accepted. Papers which treat new and novel device, circuit or system issues which are of generic interest to power electronics engineers are published. Papers which are not within the scope of this Journal will be forwarded to the appropriate IEEE Journal or Transactions editors. Examples of papers which would be more appropriately published in other Journals or Transactions include: 1) Papers describing semiconductor or electron device physics. These papers would be more appropriate for the IEEE Transactions on Electron Devices. 2) Papers describing applications in specific areas: e.g., industry, instrumentation, utility power systems, aerospace, industrial electronics, etc. These papers would be more appropriate for the Transactions of the Society which is concerned with these applications. 3) Papers describing magnetic materials and magnetic device physics. These papers would be more appropriate for the IEEE Transactions on Magnetics. 4) Papers on machine theory. These papers would be more appropriate for the IEEE Transactions on Power Systems. While original papers of significant technical content will comprise the major portion of the Journal, tutorial papers and papers of historical value are also reviewed for publication.
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