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논문 기본 정보

자료유형
학술저널
저자정보
Charnyut Karnjanapiboon (King Mongkut’s University of Technology Thonburi (KMUTT)) Kamon Jirasereeamornkul (King Mongkut’s University of Technology Thonburi (KMUTT)) Veerapol Monyakul (National Science and Technology Development Agency (NSTDA))
저널정보
전력전자학회 JOURNAL OF POWER ELECTRONICS JOURNAL OF POWER ELECTRONICS Vol.13 No.2
발행연도
2013.3
수록면
186 - 196 (11page)

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초록· 키워드

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This paper presents a low voltage-stress AC-linked charge equalizing system for balancing the energy in a serially connected, valve-regulated lead acid battery string using a modular converter that consists of multiple transformers coupled together. Each converter was coupled through an AC- linked bus to increase the overall energy transfer efficiency of the system and to eliminate the problem of the unbalanced charging of batteries. Previous solutions are based on centralized and modularized topologies. A centralized topology requires a redesign of the hardware and related components. It also faces a high voltage stress when the number of batteries is expanded. Modularized solutions use low-voltage-stress, double-stage, DC-linked topologies which leads to poor energy transfer efficiency. The proposed solution uses a low-voltage stress, AC-linked, modularized topology that makes adding more batteries easier. It also has a better energy transfer efficiency. To ensure that the charge equalization system operates smoothly and safely charges batteries, a small intelligent microcontroller was used in the control section. The efficiency of this charge equalization system is 85%, which is 21% better than other low-voltage-stress DC-linked charging techniques. The validity of this approach was confirmed by experimental results.

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Abstract
Ⅰ. INTRODUCTION
Ⅱ. THE PROPOSED CHARGE EQUALIZATION TECHNIQUE
Ⅲ. OPERATION OF THE SINGLE-STAGE SYNCHRONOUS FORWARD CES CONVERTER
Ⅳ. DESIGN OF THE CHARGE EQUALIZATION AC-LINKED MODULE
Ⅴ. CONTROLLING PRINCIPLE
Ⅵ. EXPERIMENTAL RESULTS
Ⅶ . CONCLUSION
REFERENCES

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UCI(KEPA) : I410-ECN-0101-2014-560-000199811