Preliminary Exploration of Control and Protection System for±800?kV Ultra-high Voltage Direct Current Transmission
±800 kV UHV DC transmission project is the world's highest voltage level,the largest transmission capacity of the HVDC project,its control and protection system compared with the conventional HVDC project,with complex functions,large communication volume,station control equipment and other characteristics,so that the design and implementation of the control and protection system face more challenges.This paper introduces the structure of±800 kV UHVDC transmission control and protection system,and puts forward the configuration principle of UHVDC protection and the control and protection function of the system,so as to ensure the safe and stable operation of UHVDC transmission project.
±800 kV ultra-high voltagedirect current transmissioncontrolprotect
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