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Extending the Operating Region of Inductive Power Transfer Systems Through Dual-Side Cooperative Control | IEEE Journals & Magazine | IEEE Xplore

Extending the Operating Region of Inductive Power Transfer Systems Through Dual-Side Cooperative Control


Abstract:

A wide operating region of inductive power transfer systems indicates a stable output against large load and coupling changes. In most of the published works, output regu...Show More

Abstract:

A wide operating region of inductive power transfer systems indicates a stable output against large load and coupling changes. In most of the published works, output regulation is achieved by single-side regulation that utilizes either primary-side or secondary-side power converters for load regulation. However, secondary-side regulation tends to have a relatively narrow operating region due to space and cost considerations. Meanwhile, although primary-side regulation may provide a larger operating region, system performance can be degraded due to the needs of secondary-side information. To overcome the drawbacks of single-side regulation, this article proposes a dual-side cooperative output regulation method implemented by burst-mode pulse density modulation. In the proposed method, dual-side cooperative control is established by sensing primary-side current drops caused by secondary-side burst operations and, hence, requires no communication devices. With the proposed method, the system operating region can be effectively extended without sacrificing steady-state performance. Experimental results are provided in this article to validate the proposed method.
Published in: IEEE Transactions on Industrial Electronics ( Volume: 67, Issue: 11, November 2020)
Page(s): 9302 - 9312
Date of Publication: 28 November 2019

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