TechRxiv

A Direct Modularization Method for Multi-cell to Multi-cell Equalizer with Large Cell Count

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posted on 2023-12-04, 02:36 authored by Shimul DamShimul Dam, Vinod John

A modular voltage equalizer can be used in a wide variety of applications without changing the module design. However, the modularization of an equalizer topology often involves slow inter-module equalization, additional energy loss, and cost. A study on available modularization techniques shows that the transformer-based equalizers offer simple and low-cost modularization methods. Conversely, the transformer-less equalizers can offer more compact design, but their modularization methods suffer from either high complexity and loss, or slow inter-module equalization speed. In this work, one two-winding transformer is introduced into a transformer-less equalizer module to leverage the modularization benefits of transformer isolation while still achieving a more compact design than transformer-based equalizers. The proposed direct modularization method achieves fast inter-module equalization and fixed design for a variety of applications with a small increase in cost and size. The proposed method is implemented on a transformer-less equalizer and its effectiveness is validated experimentally with a three-module prototype.

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Email Address of Submitting Author

sdam@utk.edu

ORCID of Submitting Author

0000-0001-6979-0037

Submitting Author's Institution

University of Tennessee

Submitting Author's Country

  • United States of America

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