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This paper proposes a dynamic phasors model of HVDC systems including the converter, DC line and control when the AC systems are symmetrical and analyses the simulation process of the proposed dynamic phasors model. The proposed dynamic phasors model can rapidly reflect the dynamic characteristics of HVDC systems including the harmonics characteristics of the converter of HVDC systems at the AC system side. Simulation results among the dynamic phasors models and EMR model are compared and the simulation results confirm the validity and accuracy of the proposed dynamic phasors model. Keywordsmodelling; simulation; High Voltage Direct Current (HVDC) systems;dynamic phasors

Modelling and Simulation of HVDC Systems Considering the Harmonics of Converter Based on Dynamic Phasors Theory