What is it about?

This paper reviews the characteristics of hybrid multi-infeed hvdc transmission system using indices of CFII, VSF, MIIF and TOV. The critical inductances for CFII and voltage stability improvement by MMC VSC HVDC is also analyzed. The simulation was conducted in the short and long-distance fault location on the system. The modelling and simulation of the steady state and transient performance of hybrid HVDC system are conducted in PSCAD/EMTDC. Finally, the simulation results verify the enhancement in sensitivity and stability of the dual-infeed HVDC system.

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Why is it important?

The commutation failure phenomenon is one of the important criteria in LCC HVDC operation. The influence of VSC to control voltage stably leading to the commutation failure immunity is analyzed and verified by the indices and the detailed HVDC model-based PSCAD simulation.


This paper contributes to analyzing power systems implementing various types of DC systems. We hope the result can be helpful to the power system engineer and researcher to get positive perspectives on DC system application.

Minhan Yoon
Kwangwoon University

Read the Original

This page is a summary of: Commutation failure and voltage sensitivity analysis in a hybrid multi-infeed HVDC system containing modular multilevel converter, International Transactions on Electrical Energy Systems, March 2016, Wiley, DOI: 10.1002/etep.2206.
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