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A Direct Modularization Method for Multicell to Multicell Equalizer With Large Cell Count
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DOI：10.1109/TIE.2024.3395799.png)
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Abstract
En 中文
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 intermodule equalization, additional energy loss, and cost. A study on available modularization techniques shows that transformer-based equalizers offer simple and low-cost modularization methods. Conversely, the transformer-less equalizers can offer a more compact design, but their modularization methods suffer from either high complexity and loss, or slow intermodule equalization speed. In this work, one twowinding 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 intermodule 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 threemodule prototype.
Keywords:
Fast balancing
modular
voltage equalizer
Journal
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1.8W
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