当前,我国现有电力系统难以适应清洁能源跨越式发展,大电网安全可靠运行面临巨大压力,电网支撑大范围优化资源配置能力亟待提高,发展智能电网是必然的战略选择。然而,建设智能电网需密切结合国情、结合电网实际。南方电网具有远距离、大容量、交直流混合并联运行的特点,智能电网发展的重点是保障电网安全运行,系统稳定灵活,供电服务优质可靠。发展智能电网的驱动力南方电网发展智能电网有电网运行和企业运营的需求。从中长期来看,南方电网运行主要面临三大挑战。首先,南方区域能源资源分布和经济发展的不平衡,决定了南方电网现在及今后较长一段时间内具有大容量、远距离、交直流并联运行的特点,保障交直流电网安全稳定运行,减少大面积停电发生是南方电网中长期所面临的主要挑战之一。其次,随着珠三角负荷中心电网结构日趋紧密,负荷密度进一步增大,短路电流风 At present, the existing power system in our country is difficult to adapt to the leap-forward development of clean energy. The safe and reliable operation of large power grids is under tremendous pressure. Therefore, it is imperative to improve the resource allocation capability on a large scale by the power grid. Developing smart grid is an inevitable strategic choice. However, the construction of smart grid needs to be closely integrated with the national conditions, combined with the actual power grid. China Southern Power Grid has the characteristics of long-distance, high-capacity, AC-DC hybrid parallel operation. The focus of smart grid development is to ensure the safe operation of the power grid. The system is stable and flexible, and the power supply service is of high quality and reliability. The driving force for the development of smart grid China Southern Power Grid Development of smart grid with grid operations and business operations needs. In the medium to long term, the operation of China Southern Power Grid is mainly facing three major challenges. First, the imbalance in the distribution of energy resources and economic development in the southern region has determined that CSG will have large-capacity, long-distance and AC-DC parallel operation for a long period of time now and in the future. This will ensure the safe and stable operation of the AC and DC power grids, An area outage is one of the major challenges facing China Southern Power Grid in the medium to long term. Secondly, as the grid structure of the PRD load center becomes more and more compact and the load density further increases, the short-circuit current wind