Adaptability Analysis and Optimization Of Differential Protection for Transmission Line Connecting Renewable Energy Power Plants and Zhangbei Four Terminal Modular Multilevel Converter High Voltage Direct Current System

Zhangbei four terminal flexible power grid project has greatly improved the new energy consumption capacity of the region, but the characteristics of electronic power supply on both sides of the new energy transmission line also bring the problem of insufficient sensitivity to the traditional AC protection. In this paper, it is proposed that the sensitivity of new energy transmission line can be i...