Low Frequency Current Ripple Mitigation of Two Stage Three-Phase PEMFC Generation Systems

Huiwen Deng; Qi Li; Zhixiang Liu; Lun Li; Weirong Chen

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자료유형: 학술저널

저자정보: Huiwen Deng (Southwest Jiaotong University) Qi Li (Southwest Jiaotong University) Zhixiang Liu (Southwest Jiaotong University) Lun Li (Southwest Jiaotong University) Weirong Chen (Southwest Jiaotong University)

저널정보: 전력전자학회 JOURNAL OF POWER ELECTRONICS JOURNAL OF POWER ELECTRONICS Vol.16 No.6

발행연도: 2016.11

수록면: 2,243 - 2,257 (15page)

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This paper presents a two stage three-phase proton exchange membrane fuel cell (PEMFC) generation system. When the system is connected to a three-phase load, it is very sensitive to the characteristics and type of the load. Especially unbalanced three-phase loads, which result in a pulsating power that is twice the output frequency at the inverter output, and cause the dc-link to generate low frequency ripples. This penetrates to the fuel cell side through the front-end dc-dc converter, which makes the fuel cell work in an unsafe condition and degrades its lifespan. In this paper, the generation and propagation mechanism of low frequency ripple is analyzed and its impact on fuel cells is presented based on the PEMFC output characteristics model. Then a novel method to evaluate low frequency current ripple control capability is investigated. Moreover, a control scheme with bandpass filter inserted into the current feed-forward path, and ripple duty ratio compensation based on current mode control with notch filter is also proposed to achieve low frequency ripple suppression and dynamic characteristics improvement during load transients. Finally, different control methods are verified and compared by simulation and experimental results.

#Duty ratio compensation #Low frequency ripple suppression #PEMFC generation system #Unbalanced three-phase load

Abstract
Ⅰ. INTRODUCTION
Ⅱ. GENERATION AND PROPAGATION MECHANISM OF LOW FREQUENCY CURRENT RIPPLE
Ⅲ. PEMFC MATHEMATICAL MODELING
Ⅳ. METHODS OF LOW FREQUENCY CURRENT RIPPLE REDUCTION BASED ON CURRENT MODE CONTROL
Ⅴ. DYNAMIC CHARACTERISTICS IMPROVEMENT BASED ON THE CMC+VLN METHOD
Ⅵ. EXPERIMENTAL RESULTS
Ⅶ. CONCLUSIONS
REFERENCES

참고문헌 (31)

참고문헌 신청

[학술지(정기간행물)] - J. T. Pukrushpan / 2004 / Control of fuel cell breathing / IEEE Trans. Control Systems 24 (2) : 30 ~ 46

[학술지(정기간행물)] - S. Jung / 2007 / A low cost utility interactive inverter for residential fuel cell generation / IEEE Trans. Power Electron 22 (6) : 2293 ~ 2298

[학술지(정기간행물)] - Y. Yang / 2014 / Dynamic modeling and dynamic responses of gridconnected fuel cell / International Journal of Hydrogen Energy 39 (26) : 14296 ~ 14305

[학술지(정기간행물)] - X. Li / 2011 / Power management unit with its control for a three-phase fuel cell power system without large electrolytic capacitors / IEEE Trans. Power Electron 26 (12) : 3766 ~ 3777

[학술지(정기간행물)] - W. Choi / 2006 / Development of an equivalent circuit model of a fuel cell to evaluate the effects of inverter ripple current / Journal of Power Sources 158 (2) : 1324 ~ 1332

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