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논문 기본 정보

자료유형
학술저널
저자정보
Bo Feng (Huazhong University of Science and Technology) Hua Lin (Huazhong University of Science and Technology)
저널정보
전력전자학회 JOURNAL OF POWER ELECTRONICS JOURNAL OF POWER ELECTRONICS Vol.15 No.4
발행연도
2015.7
수록면
1,006 - 1,017 (12page)

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This paper presents a finite control set model predictive control (FCS-MPC) strategy for the AC/DC matrix converter used in grid-connected battery energy storage system (BESS). First, to control the grid current properly, the DC current is also included in the cost function because of input and output direct coupling. The DC current reference is generated based on the dynamic relationship of the two currents, so the grid current gains improved transient state performance. Furthermore, the steady state error is reduced by adding a closed-loop. Second, a Luenberger observer is adopted to detect the AC input voltage instead of sensors, so the cost is reduced and the reliability can be enhanced. Third, a switching state pre-selection method that only needs to evaluate half of the active switching states is presented, with the advantages of shorter calculation time, no high dv/dt at the DC terminal, and less switching loss. The robustness under grid voltage distortion and parameter sensibility are discussed as well. Simulation and experimental results confirm the good performance of the proposed scheme for battery charging and discharging control.

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Abstract
I. INTRODUCTION
II. PREDICTIVE MODEL
III. COST FUNCTION DESIGN
IV. AC INPUT VOLTAGE ESTIMATION
V. ACTIVE SWITCHING STATE SELECTION METHOD
VI. SIMULATION AND EXPERIMENTAL RESULTS
VII. CONCLUSION
REFERENCES

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