Grid-forming control technology can make power system have active support ability, so it has broad application prospect in new power system. In this paper, the main grid-forming control techniques are systematically introduced and their characteristics are compared. Then, the advantages and disadvantages of different converters for the application of grid-forming control are compared. The application of grid-forming control strategy in high voltage cascaded energy storage system is introduced, and it is pointed out that this topology has natural advantages in the use of grid-forming control. This paper also points out that although the grid-forming equipment is suitable for the development of new power systems, it will also bring new problems to the system. How to balance grid-forming and grid-following converters is still a topic that needs further study.
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