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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2015.5
- 수록면
- 775 - 785 (11page)
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초록· 키워드
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Many equalization circuits have been proposed to improve pack performance and reduce imbalance. Although bidirectional equalization topologies are promising in these methods, pre-equalization global equalization strategy is lacking. This study proposes a novel state-of-charge (SoC) equalization algorithm for bidirectional equalizer based on particle swarm optimization (PSO), which is employed to find optimal equalization time and steps. The working principle of bidirectional equalization topologies is analyzed, and the reason behind the application of SoC as a balancing criterion is explained. To verify the performance of the proposed algorithm, a pack with 12 LiFePO4 batteries is applied in the experiment. Results show that the maximum SoC gap is within 2% after equalization, and the available pack capacity is enhanced by 13.2%. Furthermore, a comparison between previously used methods and the proposed PSO equalization algorithm is presented. Experimental tests are performed, and results show that the proposed PSO equalization algorithm requires fewer steps and is superior to traditional methods in terms of equalization time, energy loss, and balancing performance.
목차
Abstract
I. INTRODUCTION
Ⅱ. BIDIRECTIONAL SOC EQUALIZATION
III. PSO EQUALIZATION STRATEGY
IV. EXPERIMENT DESIGN
V. RESULTS AND DISCUSSION
VI. CONCLUSION
REFERENCES
참고문헌 (26)
참고문헌 신청
1. [학술지(정기간행물)] - B. Scrosati / 2010 / Lithium batteries: Status, prospects and future / Journal of Power Sources 195 (9) : 2419 ~ 2430
2. [학술지(정기간행물)] - G. J. Offer / 2012 / Module design and fault diagnosis in electric vehicle batteries / Journal of Power Sources 206 : 383 ~ 392
3. [학술지(정기간행물)] - B. Kenney / 2012 / Modelling the impact of variations in electrode manufacturing on lithium-ion battery modules / Journal of Power Sources 213 : 391 ~ 401
4. [학술지(정기간행물)] - J. Kim / 2012 / Stable configuration of a li-ion series battery pack based on a screening process for improved voltage/SOC balancing / IEEE Trans. Power Electron 27 (1) : 411 ~ 424
5. [학술지(정기간행물)] - Y. Zheng / 2014 / On-line equalization for lithium-ion battery packs based on charging cell voltages: Part 1. Equalization based on remaining charging capacity estimation / Journal of Power Sources 247 : 676 ~ 686
2. [학술지(정기간행물)] - G. J. Offer / 2012 / Module design and fault diagnosis in electric vehicle batteries / Journal of Power Sources 206 : 383 ~ 392
3. [학술지(정기간행물)] - B. Kenney / 2012 / Modelling the impact of variations in electrode manufacturing on lithium-ion battery modules / Journal of Power Sources 213 : 391 ~ 401
4. [학술지(정기간행물)] - J. Kim / 2012 / Stable configuration of a li-ion series battery pack based on a screening process for improved voltage/SOC balancing / IEEE Trans. Power Electron 27 (1) : 411 ~ 424
5. [학술지(정기간행물)] - Y. Zheng / 2014 / On-line equalization for lithium-ion battery packs based on charging cell voltages: Part 1. Equalization based on remaining charging capacity estimation / Journal of Power Sources 247 : 676 ~ 686
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UCI(KEPA) : I410-ECN-0101-2016-560-001464311