能源风向标｜主微配网从“物理连接”走向“智能协同”

Core Viewpoint - The latest "roadmap" for high-quality development of the power grid has been issued by the National Development and Reform Commission and the National Energy Administration, aiming to establish a new type of power grid platform by 2030, which includes a backbone grid, distribution networks, and smart microgrids [1] Group 1: Characteristics of the New Power Grid Platform - The new power grid platform features the collaboration of the main grid, distribution grid, and microgrid, which together support the new power system [2] - The main grid acts as the backbone network, connecting large power plants and distribution networks, while the distribution grid connects the main grid to end users [2] - Microgrids are small independent power systems that integrate distributed power sources, storage systems, and intelligent control systems, enhancing local energy management [2] Group 2: Challenges of High Proportion of Renewable Energy Integration - The integration of a high proportion of renewable energy presents significant challenges, including the need for long-distance, high-capacity transmission channels due to the geographical mismatch between energy production and consumption [4] - The traditional distribution network must evolve from a unidirectional system to a bidirectional interactive system to accommodate the explosive growth of distributed renewable energy [4] - The variability and randomness of renewable energy output complicate the system's load curve, necessitating systemic changes in grid planning and operation [4] Group 3: Strategies for Ensuring Safe Operation of the New Platform - To address the challenges posed by high renewable energy integration, three strategies are proposed: enhancing interaction between the main grid, distribution grid, and microgrid; developing microgrids tailored to local conditions; and promoting coordinated development among various energy sources and loads [6][7] - The upgrade of transmission and transformation technologies is essential, including innovations in flexible DC transmission and high-performance AC switch technologies [7] - Advanced digital technologies such as artificial intelligence and big data are crucial for the construction of the new power grid platform, facilitating better operational efficiency and risk management [8]