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논문 기본 정보

자료유형
학술저널
저자정보
Yiqi Liu (Northeast Forestry University) Wenlong Song (Northeast Forestry University) Ningning Li (Harbin Institute of Technology) Linquan Bai (University of Tennessee) Yanchao Ji (Harbin Institute of Technology)
저널정보
전력전자학회 JOURNAL OF POWER ELECTRONICS JOURNAL OF POWER ELECTRONICS Vol.16 No.6
발행연도
2016.11
수록면
2,315 - 2,326 (12page)

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초록· 키워드

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This paper discusses the elimination of DC voltage deviation and the enhancement of load current sharing accuracy in multi-terminal high voltage direct current (MT-HVDC) systems. In order to minimize the power line losses in different parallel network topologies and to insure the stable operation of systems, a decentralized control method based on a modified droop control is presented in this paper. Averaging the DC output voltage and averaging the output current of two neighboring converters are employed to reduce the congestion of the communication network in a control system, and the decentralized control method is implemented. By minimizing the power loss of the cable, the optimal load current sharing proportion is derived in order to achieve rational current sharing among different converters. The validity of the proposed method using a low bandwidth communication (LBC) network for different topologies is verified. The influence of the parameters of the power cable on the control system stability is analyzed in detail. Finally, transient response simulations and experiments are performed to demonstrate the feasibility of the proposed control strategy for a MT-HVDC system.

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Abstract
Ⅰ. INTRODUCTION
Ⅱ. ANALYSIS OF MT-HVDC NETWORK CONFIGURATIONS
Ⅲ. PROPOSED OPTIMAL METHOD BASED ON DROOP CONTROL
Ⅳ. SIMULATION RESULTS
Ⅴ. EXPERIMENTAL VALIDATION
Ⅵ. CONCLUSIONS
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