Microgrids: Characteristics and Emerging Challenges

Hesami, Morteza; Pourmirasghariyan, Mirhamed; Gharehpetian, G. B.

doi:10.1109/icredg61679.2024.10607827

2024 11th Iranian Conference on Renewable Energy and Distribution Generation (ICREDG) 2024

DOI: 10.1109/icredg61679.2024.10607827

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Microgrids: Characteristics and Emerging Challenges

Morteza Hesami,

Mirhamed Pourmirasghariyan,

G. B. Gharehpetian

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2024

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Reliability research of thyristors for HVDC transmission system

Xu,

Pang,

Xie

et al. 2024

Sci Rep

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The long-term operation performance of HVDC transmission systems is significantly influenced by the reliability of thyristors. However, the current reliability research of thyristors is mainly based on the leakage current and there is no comprehensive degradation characteristics of thyristors. In this article, the degradation characteristics of thyristors under voltage and temperature accelerated ageing tests are obtained, including the reverse recovery characteristic, on-state characteristic, blocking characteristic and gate characteristic. The reverse recovery characteristic obviously degrades under the voltage accelerated ageing tests. The reverse recovery charge and reverse recovery time decrease by over 10% after the tests. Seven thyristors operating for a certain number of years from two HVDC stations are tested, and the results verify the thyristor degradation characteristics obtained from the ageing tests. Moreover, the mechanisms of the leakage current and reverse recovery characteristic are analyzed in detail.

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Reliability research of thyristors for HVDC transmission system

Xu,

Pang,

Xie

et al. 2024

Sci Rep

View full text Add to dashboard Cite

show abstract

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Microgrids: Characteristics and Emerging Challenges

Cited by 1 publication

References 54 publications

Reliability research of thyristors for HVDC transmission system

Reliability research of thyristors for HVDC transmission system

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