Due to their high controllability and flexibility

DC power grids have broad application prospects in the fields of networking of renewable energy and the power supply for oceanic archipelagos and future cities. This paper describes the system topology

control strategy

DC breaker configuration

and research

development and testing of converter valves and DC breaker equipment of the Zhoushan multi-terminal DC transmission system. Zhejiang Zhoushan has unique geographical and developmental features to demonstrate the irreplaceable technical advantages of a DC power grid for providing reliable power supply. The experience gained from the Zhoushan DC power grid project can offer valuable insights into the development and utilization of this technology worldwide.