Analysis of Commutation Failure in Multi-Infeed HVDC System under Different Load Models

Abstract

HVDC technology has been widely used in modern power system. On one hand, HVDC has the advantages of economy, high efficiency and strong controllability. While on the other hand, it makes the dynamic characteristics of the power system becoming more and more complex. That puts forward a new challenge to system stability and raises new questions for power system simulation. This paper focuses on the interaction between AC and DC systems, especially the problem of commutation failure caused by AC system fault. Based on the data of China Southern Power Grid, this paper calculates the fault regions that may cause commutation failure and calculates the system critical clearance time under different load models, analyzes the impacts of different load models on commutation failure and the stability of AC/DC hybrid system.

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Xia, C. , Yang, Z. , Men, K. and Zhao, Y. (2014) Analysis of Commutation Failure in Multi-Infeed HVDC System under Different Load Models. Journal of Power and Energy Engineering, 2, 154-161. doi: 10.4236/jpee.2014.29022.

Conflicts of Interest

The authors declare no conflicts of interest.

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