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Preventive Parameterization of DC Voltage Control for N-1 security of AC-HVDC-Systems

Regarding hybrid AC-HVDC-systems, an insufficient parameterization of DC voltage control can cause a violation of operational security limits in case of VSC outages. This paper outlines an approach to provide N-1 security for AC-HVDC-systems in these cases. Therefore, the parameters of the VSCs’ individual DC voltage control function, which bases on a continuous voltage control characteristic, are optimized preventively considering possible VSC outages. The numerical case study shows that the proposed approach is feasible to provide N-1 security for AC-HVDC-systems in case of VSC outages.

Author(s):

Franz Linke    
Technische Universität Ilmenau
Germany

Florian Sass    
Technische Universität Ilmenau
Germany

Dirk Westermann    
Technische Universität Ilmenau
Germany

 

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