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논문 기본 정보
- 자료유형
- 학술대회자료
- 저자정보
- 발행연도
- 2015.6
- 수록면
- 1,434 - 1,441 (8page)
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초록· 키워드
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Two stage cascaded converters are widely used in bidirectional applications, but the negative impedance may cause system instability. Actually the impedance interaction is much different between forward power flow and reversed power flow, which will introduce more uncertainty to the system stability. This paper proposes a control method for the constant power controlled converter in cascaded system, and consequently it can change the negative impedance of constant power converter into resistive impedance, which will improve the cascaded system stability, as well as merge the impedance difference between forward and reversed power flow. This paper addresses the analysis with the topology of cascaded dualactive - bridge converter (DAB) with inverter, and the proposed control method can also be implemented in unidirectional applications and other general cascaded converter system. The effectiveness has been validated by both simulation and experimental results.
목차
Abstract
I. INTRODUCTION
II. IMPEDANCE INTERACTION MODELLING AND ANALYSIS
III. IMPEDANCE COORDINATIVE CONTROL FOR THE CASCADED CONVERTER
IV. SIMULATION AND EXPERIMENT RESULTS
V. CONCLUSION
VI. ACKNOWLEDGMENT
REFERENCES
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