HVDC Terminal Locations Optimization to Enhance the Grid Connection Capacity of High Proportion New Energy Transmission Ends

The HVDC drop point scheme which is to improve the access capacity of the transmission terminal grid with a high proportion of the new energy and measures is studied, and takes the a provincial company which is rich in clean energy resources as a practical example. Based on the fact that several HVDC transmission lines are planned to be added by a provincial company and the AC grid structure of the power grid has also been strengthened, this paper makes a comprehensive technical and economic comparison of the new HVDC drop point scheme from the aspects of power quantity balance, power flow and voltage distribution, short circuit current, security and stability, resource distribution and access conditions and engineering quantity, etc. In view of the access problem of HVDC with a high proportion of new energy, this paper put forward specific measures to improve the access capacity of new energy.