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Power-Hardware-In-the-Loop simulation of VSC-HVDC based three-terminal DC mock-up

The frequency support provided by a DC grid to an interconnected AC grid and integrated in VSC-HVDC controller is studied in this paper. The advantages of a combined control of voltage droop and frequency droop are investigated on a hybrid AC/DC system for the case of a sudden loss of large generation unit in the AC grid. The coupling between both droops control and the correction factor of the frequency droop coefficient are discussed. An experimental validation on VSC converter prototypes and under realistic operation conditions is conducted using Power-Hardware-In-the-Loop simulation. The practical results showed a good match with the theoretical calculation and confirmed the offline simulation results presented in previous work.

Author(s):

Khaled Almaksour    
L2EP, Arts et Mtiers ParisTech
France

Samy Akkari    
CentraleSupélec
France

Mohamed Moez Belhaouane    
L2EP, Ecole Centrale de Lille
France

Frederic Colas    
L2EP, Arts et Mtiers ParisTech
France

Xavier Guillaud    
L2EP, Ecole Centrale de Lille
France

 

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