Study on the Planning Scheme of DC Outgoing Power with a High Proportion of Renewable Energy Sources and the Formulation of DC Delivery Curves

In order to evaluate the safety, reliability, economy, adaptability and environmental friendliness of power planning decisions in detail, a detailed operation simulation of the future power system is required. Through the establishment of mathematical models of various types of unit scheduling methods and simulation models of future power system scheduling and operation, and research and development of the corresponding calculation methods, to achieve the expected scheduling and operation pattern of the power system as well as the planning of the project’s expected economic benefits of the prejudgement of the system’s potential operational risks, and to realize the closed-loop power planning decision-making calibration and adjustment, to lay the foundation of the lean and intelligent power planning work. Lay the foundation for lean and intelligent power planning. In this paper, the method of DC transmission curve formulation is given, the system operation simulation model reflecting the intermittency and stochasticity of renewable energy output is established, and the GOPT5.0 software is used to simulate the large-scale renewable energy DC transmission scheme.