Analysis of the Route Selection of HVDC in the Yangtze River Delta Load Center under the Background of the New Power System

Abstract

As the load center in East China, the receiving-end power grid in the Yangtze River Delta is densely distributed with conventional DC and faces great security and stability risks in the context of the development of dual-carbon and new power systems. Based on the existing problems in the Yangtze River Delta power grid, this paper draws up different DC technology routes and compares and selects them based on the safety and stability support capabilities and reactive power support capabilities of the receiving-end power grid, the impact on the short-circuit current of the system, technology maturity, land occupation, and economy, and finally put forward the recommended technical route for a foreign power to enter Shanghai.