Study on Transient Stability Characteristics of Hubei Power Grid after Jinshang-Hubei UHVDC Transmission Project is Put into Operation

The Jinshang-Hubei UHVDC (Jinshang UHVDC) transmission project is planned to be completed and put into operation in 2025. So far, the eastern Hubei area is connected with two major UHVDCs in Shanwu and Jinshang, and the power grid structure of strong DC and weak AC has been further highlighted. This paper focuses on the study of the transient stability characteristics of the Hubei power grid after UHVDC access and further analyzes the start-up impact of near-area generators. Based on this, the corresponding suggestions for stable operation control are put forward. The research results have a certain guiding role in Hubei's power grid planning and operation.